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              "end": "2025-12-31",
              "val": -984000000,
              "accn": "0000798354-26-000018",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": -1035000000,
              "accn": "0000798354-26-000018",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            }
          ]
        }
      },
      "AdditionalPaidInCapital": {
        "label": "Additional Paid in Capital",
        "description": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.",
        "units": {
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              "end": "2008-12-31",
              "val": 706000000,
              "accn": "0001193125-09-167025",
              "fy": 2009,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2009-08-06"
            },
            {
              "end": "2008-12-31",
              "val": 706000000,
              "accn": "0001193125-09-227470",
              "fy": 2009,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2009-11-06"
            },
            {
              "end": "2008-12-31",
              "val": 706000000,
              "accn": "0001193125-10-042577",
              "fy": 2009,
              "fp": "FY",
              "form": "10-K",
              "filed": "2010-02-26",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2009-06-30",
              "val": 716000000,
              "accn": "0001193125-09-167025",
              "fy": 2009,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2009-08-06",
              "frame": "CY2009Q2I"
            },
            {
              "end": "2009-09-30",
              "val": 722000000,
              "accn": "0001193125-09-227470",
              "fy": 2009,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2009-11-06",
              "frame": "CY2009Q3I"
            },
            {
              "end": "2009-12-31",
              "val": 727000000,
              "accn": "0001193125-10-042577",
              "fy": 2009,
              "fp": "FY",
              "form": "10-K",
              "filed": "2010-02-26"
            },
            {
              "end": "2009-12-31",
              "val": 727000000,
              "accn": "0001193125-10-110738",
              "fy": 2010,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2010-05-06"
            },
            {
              "end": "2009-12-31",
              "val": 727000000,
              "accn": "0001193125-10-178791",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 727000000,
              "accn": "0001193125-10-249903",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-05"
            },
            {
              "end": "2009-12-31",
              "val": 727000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-03-31",
              "val": 729000000,
              "accn": "0001193125-10-110738",
              "fy": 2010,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2010-05-06",
              "frame": "CY2010Q1I"
            },
            {
              "end": "2010-06-30",
              "val": 736000000,
              "accn": "0001193125-10-178791",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 742000000,
              "accn": "0001193125-10-249903",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-05",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 750000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 750000000,
              "accn": "0001193125-11-125883",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-04"
            },
            {
              "end": "2010-12-31",
              "val": 750000000,
              "accn": "0001193125-11-206249",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-02"
            },
            {
              "end": "2010-12-31",
              "val": 750000000,
              "accn": "0001193125-11-292805",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-02"
            },
            {
              "end": "2010-12-31",
              "val": 750000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 753000000,
              "accn": "0001193125-11-125883",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-04",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 761000000,
              "accn": "0001193125-11-206249",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-02",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 767000000,
              "accn": "0001193125-11-292805",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-02",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 777000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "end": "2011-12-31",
              "val": 777000000,
              "accn": "0001193125-12-204679",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-02"
            },
            {
              "end": "2011-12-31",
              "val": 777000000,
              "accn": "0001193125-12-324802",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-07-31"
            },
            {
              "end": "2011-12-31",
              "val": 777000000,
              "accn": "0001193125-12-443306",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-10-31"
            },
            {
              "end": "2011-12-31",
              "val": 777000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 779000000,
              "accn": "0001193125-12-204679",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-02",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 790000000,
              "accn": "0001193125-12-324802",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-07-31",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 793000000,
              "accn": "0001193125-12-443306",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-10-31",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 804000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22"
            },
            {
              "end": "2012-12-31",
              "val": 804000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01"
            },
            {
              "end": "2012-12-31",
              "val": 804000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31"
            },
            {
              "end": "2012-12-31",
              "val": 804000000,
              "accn": "0001193125-13-418089",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-10-30"
            },
            {
              "end": "2012-12-31",
              "val": 802000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 809000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 821000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 832000000,
              "accn": "0001193125-13-418089",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-10-30",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 844000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20"
            },
            {
              "end": "2013-12-31",
              "val": 844000000,
              "accn": "0001193125-14-171890",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-04-30"
            },
            {
              "end": "2013-12-31",
              "val": 844000000,
              "accn": "0001193125-14-286896",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-30"
            },
            {
              "end": "2013-12-31",
              "val": 844000000,
              "accn": "0001193125-14-387385",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-29",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 852000000,
              "accn": "0001193125-14-171890",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-04-30",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 866000000,
              "accn": "0001193125-14-286896",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-30",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 880000000,
              "accn": "0001193125-14-387385",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-29",
              "frame": "CY2014Q3I"
            }
          ]
        }
      },
      "AdditionalPaidInCapitalCommonStock": {
        "label": "Additional Paid in Capital, Common Stock",
        "description": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 844000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 897000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20"
            },
            {
              "end": "2014-12-31",
              "val": 897000000,
              "accn": "0001193125-15-174385",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-06"
            },
            {
              "end": "2014-12-31",
              "val": 897000000,
              "accn": "0001193125-15-270747",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 897000000,
              "accn": "0001628280-15-007937",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-28"
            },
            {
              "end": "2014-12-31",
              "val": 897000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 896000000,
              "accn": "0001193125-15-174385",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-06",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 920000000,
              "accn": "0001193125-15-270747",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 940000000,
              "accn": "0001628280-15-007937",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-28",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 952000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19"
            },
            {
              "end": "2015-12-31",
              "val": 952000000,
              "accn": "0000798354-16-000008",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-06"
            },
            {
              "end": "2015-12-31",
              "val": 952000000,
              "accn": "0000798354-16-000017",
              "fy": 2016,
              "fp": "Q2",
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              "filed": "2016-08-03"
            },
            {
              "end": "2015-12-31",
              "val": 952000000,
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              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-10-27"
            },
            {
              "end": "2015-12-31",
              "val": 952000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 960000000,
              "accn": "0000798354-16-000008",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-06",
              "frame": "CY2016Q1I"
            },
            {
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              "accn": "0000798354-16-000017",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 1001000000,
              "accn": "0000798354-16-000022",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-10-27",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 1020000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23"
            },
            {
              "end": "2016-12-31",
              "val": 1020000000,
              "accn": "0000798354-17-000011",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-04-27"
            },
            {
              "end": "2016-12-31",
              "val": 1020000000,
              "accn": "0000798354-17-000019",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-02"
            },
            {
              "end": "2016-12-31",
              "val": 1020000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "end": "2016-12-31",
              "val": 1020000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 999000000,
              "accn": "0000798354-17-000011",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-04-27",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 1017000000,
              "accn": "0000798354-17-000019",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-02",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 1021000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 1035000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "end": "2017-12-31",
              "val": 1031000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02"
            },
            {
              "end": "2017-12-31",
              "val": 1031000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "end": "2017-12-31",
              "val": 1031000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 1031000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 1005000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 1023000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 1045000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 1057000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "end": "2018-12-31",
              "val": 1057000000,
              "accn": "0000798354-19-000009",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01"
            },
            {
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              "end": "2021-03-31",
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              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-04-28",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 17727000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 18425000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
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              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 18870000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
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              "filed": "2022-02-24"
            },
            {
              "end": "2021-12-31",
              "val": 18870000000,
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              "form": "10-Q",
              "filed": "2022-04-28"
            },
            {
              "end": "2021-12-31",
              "val": 18870000000,
              "accn": "0000798354-22-000015",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-07-27"
            },
            {
              "end": "2021-12-31",
              "val": 18870000000,
              "accn": "0000798354-22-000019",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-10-28"
            },
            {
              "end": "2021-12-31",
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              "frame": "CY2021Q4I"
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            {
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              "accn": "0000798354-22-000009",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
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              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
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              "accn": "0000798354-22-000015",
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              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
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              "accn": "0000798354-22-000019",
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            },
            {
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            },
            {
              "end": "2022-12-31",
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              "fy": 2023,
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            },
            {
              "end": "2022-12-31",
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            },
            {
              "end": "2022-12-31",
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            },
            {
              "end": "2022-12-31",
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              "accn": "0000798354-24-000037",
              "fy": 2023,
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              "frame": "CY2022Q4I"
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            {
              "end": "2023-03-31",
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              "accn": "0000798354-23-000008",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-04-26",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 21444000000,
              "accn": "0000798354-23-000014",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-07-27",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 28581000000,
              "accn": "0000798354-23-000018",
              "fy": 2023,
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              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 34811000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
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              "filed": "2024-02-22"
            },
            {
              "end": "2023-12-31",
              "val": 34811000000,
              "accn": "0000798354-24-000100",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-04-24"
            },
            {
              "end": "2023-12-31",
              "val": 34811000000,
              "accn": "0000798354-24-000156",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-07-25"
            },
            {
              "end": "2023-12-31",
              "val": 34811000000,
              "accn": "0000798354-24-000190",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-10-23"
            },
            {
              "end": "2023-12-31",
              "val": 34811000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 37094000000,
              "accn": "0000798354-24-000100",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-04-24",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 38327000000,
              "accn": "0000798354-24-000156",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
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              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 25125000000,
              "accn": "0000798354-24-000190",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-10-23",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 23477000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20"
            },
            {
              "end": "2024-12-31",
              "val": 23477000000,
              "accn": "0000798354-25-000104",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-04-25"
            },
            {
              "end": "2024-12-31",
              "val": 23477000000,
              "accn": "0000798354-25-000163",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-07-24"
            },
            {
              "end": "2024-12-31",
              "val": 23477000000,
              "accn": "0000798354-25-000171",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-30"
            },
            {
              "end": "2024-12-31",
              "val": 23477000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 25591000000,
              "accn": "0000798354-25-000104",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-04-25",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 26474000000,
              "accn": "0000798354-25-000163",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-07-24",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 24157000000,
              "accn": "0000798354-25-000171",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-30",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 24654000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19"
            },
            {
              "end": "2025-12-31",
              "val": 24654000000,
              "accn": "0000798354-26-000018",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
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              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 24782000000,
              "accn": "0000798354-26-000018",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            }
          ]
        }
      },
      "AssetsHeldForSaleNotPartOfDisposalGroupCurrent": {
        "label": "Assets Held-for-sale, Not Part of Disposal Group, Current",
        "description": "Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 50000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "end": "2017-12-31",
              "val": 50000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02"
            },
            {
              "end": "2017-12-31",
              "val": 50000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "end": "2017-12-31",
              "val": 50000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 50000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 0,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 0,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 0,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent": {
        "label": "Disposal Group, Including Discontinued Operation, Assets, Current",
        "description": "Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.",
        "units": {
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            {
              "end": "2008-12-31",
              "val": 1016000000,
              "accn": "0001193125-10-042577",
              "fy": 2009,
              "fp": "FY",
              "form": "10-K",
              "filed": "2010-02-26",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2008-12-31",
              "val": 1034000000,
              "accn": "0001193125-09-227470",
              "fy": 2009,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2009-11-06"
            },
            {
              "end": "2008-12-31",
              "val": 946000000,
              "accn": "0001193125-09-167025",
              "fy": 2009,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2009-08-06"
            },
            {
              "end": "2009-06-30",
              "val": 867000000,
              "accn": "0001193125-09-167025",
              "fy": 2009,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2009-08-06",
              "frame": "CY2009Q2I"
            },
            {
              "end": "2009-09-30",
              "val": 886000000,
              "accn": "0001193125-09-227470",
              "fy": 2009,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2009-11-06",
              "frame": "CY2009Q3I"
            },
            {
              "end": "2009-12-31",
              "val": 0,
              "accn": "0001193125-10-042577",
              "fy": 2009,
              "fp": "FY",
              "form": "10-K",
              "filed": "2010-02-26",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 33000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 33000000,
              "accn": "0001193125-13-418089",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-10-30"
            },
            {
              "end": "2012-12-31",
              "val": 33000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31"
            },
            {
              "end": "2012-12-31",
              "val": 33000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01"
            }
          ]
        }
      },
      "BuildingsAndImprovementsGross": {
        "label": "Buildings and Improvements, Gross",
        "description": "Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 184000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 190000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 190000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "end": "2012-12-31",
              "val": 194000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionCostOfAcquiredEntityCashPaid": {
        "label": "Business Acquisition, Cost of Acquired Entity, Cash Paid (Deprecated 2013-01-31)",
        "description": "Amount of cash paid to acquire the entity.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 465000000,
              "accn": "0001193125-11-206249",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-02",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2013-01-14",
              "val": 55000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionCostOfAcquiredEntityPurchasePrice": {
        "label": "Business Acquisition, Cost of Acquired Entity, Purchase Price (Deprecated 2013-01-31)",
        "description": "The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.",
        "units": {
          "USD": [
            {
              "end": "2011-03-31",
              "val": 50000000,
              "accn": "0001193125-11-292805",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-02",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-03-31",
              "val": 49000000,
              "accn": "0001193125-11-206249",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-02"
            },
            {
              "end": "2011-03-31",
              "val": 49000000,
              "accn": "0001193125-11-125883",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-04"
            }
          ]
        }
      },
      "BusinessAcquisitionProFormaEarningsPerShareBasic": {
        "label": "Business Acquisition, Pro Forma Earnings Per Share, Basic",
        "description": "The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.",
        "units": {
          "USD/shares": [
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2.2,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 1.2,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31",
              "frame": "CY2012Q2"
            }
          ]
        }
      },
      "BusinessAcquisitionProFormaEarningsPerShareDiluted": {
        "label": "Business Acquisition, Pro Forma Earnings Per Share, Diluted",
        "description": "The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.",
        "units": {
          "USD/shares": [
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.98,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2.17,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 1.19,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31",
              "frame": "CY2012Q2"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets": {
        "label": "Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.",
        "units": {
          "USD": [
            {
              "end": "2011-03-31",
              "val": 40000000,
              "accn": "0001193125-11-206249",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-02",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-03-31",
              "val": 40000000,
              "accn": "0001193125-11-125883",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-04"
            },
            {
              "end": "2013-01-14",
              "val": 571000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndCashEquivalents": {
        "label": "Business Acquisition, Purchase Price Allocation, Current Assets, Cash and Cash Equivalents (Deprecated 2013-01-31)",
        "description": "The amount of cash and cash equivalents acquired in a business combination.",
        "units": {
          "USD": [
            {
              "end": "2013-01-14",
              "val": 39000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaidExpenseAndOtherAssets": {
        "label": "Business Acquisition, Purchase Price Allocation, Current Assets, Prepaid Expense and Other Assets (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to prepaid expenses and other current assets. Does not include amounts allocated to cash and cash equivalents, marketable securities, receivables, inventory, and assets not to be used.",
        "units": {
          "USD": [
            {
              "end": "2013-01-14",
              "val": 41000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables": {
        "label": "Business Acquisition, Purchase Price Allocation, Current Assets, Receivables (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to receivables.",
        "units": {
          "USD": [
            {
              "end": "2013-01-14",
              "val": 41000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationGoodwillAmount": {
        "label": "Business Acquisition, Purchase Price Allocation, Goodwill Amount (Deprecated 2013-01-31)",
        "description": "Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.",
        "units": {
          "USD": [
            {
              "end": "2013-01-14",
              "val": 531000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount": {
        "label": "Business Acquisition, Goodwill, Expected Tax Deductible Amount",
        "description": "The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.",
        "units": {
          "USD": [
            {
              "end": "2017-09-30",
              "val": 70000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 70000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "end": "2017-12-31",
              "val": 70000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 70000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2018Q1I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationNoncurrentLiabilitiesLongTermDebt": {
        "label": "Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to the noncurrent portion of the long-term debt assumed from the acquired entity.",
        "units": {
          "USD": [
            {
              "end": "2013-01-14",
              "val": 952000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationOtherNoncurrentAssets": {
        "label": "Business Acquisition, Purchase Price Allocation, Other Noncurrent Assets (Deprecated 2013-01-31)",
        "description": "Amount of acquisition cost of a business combination allocated to other noncurrent assets not separately disclosed.",
        "units": {
          "USD": [
            {
              "end": "2013-01-14",
              "val": 18000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationOtherNoncurrentLiabilities": {
        "label": "Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities (Deprecated 2013-01-31)",
        "description": "Amount of acquisition cost of a business combination allocated to other noncurrent liabilities not separately disclosed.",
        "units": {
          "USD": [
            {
              "end": "2013-01-14",
              "val": 94000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionsProFormaNetIncomeLoss": {
        "label": "Business Acquisition, Pro Forma Net Income (Loss)",
        "description": "The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 138000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 302000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 164000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31",
              "frame": "CY2012Q2"
            }
          ]
        }
      },
      "BusinessAcquisitionsProFormaRevenue": {
        "label": "Business Acquisition, Pro Forma Revenue",
        "description": "The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1182000000,
              "accn": "0001193125-13-192051",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-01",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2355000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 1173000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31",
              "frame": "CY2012Q2"
            }
          ]
        }
      },
      "BusinessCombinationConsiderationTransferred1": {
        "label": "Business Combination, Consideration Transferred",
        "description": "Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 383000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 384000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 384000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 384000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2017"
            }
          ]
        }
      },
      "BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1": {
        "label": "Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability",
        "description": "Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2019"
            }
          ]
        }
      },
      "BusinessCombinationContingentConsiderationLiability": {
        "label": "Business Combination, Contingent Consideration, Liability",
        "description": "Amount of liability recognized arising from contingent consideration in a business combination.",
        "units": {
          "USD": [
            {
              "end": "2017-09-30",
              "val": 15000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 15000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "end": "2017-12-31",
              "val": 15000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02"
            },
            {
              "end": "2017-12-31",
              "val": 15000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "end": "2017-12-31",
              "val": 15000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 15000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 15000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 15000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 15000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            }
          ]
        }
      },
      "BusinessCombinationIntegrationRelatedCosts": {
        "label": "Business Combination, Integration Related Costs",
        "description": "Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 56000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 56000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 56000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 48000000,
              "accn": "0000798354-20-000013",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-08"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 48000000,
              "accn": "0000798354-21-000008",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-04-28",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 140000000,
              "accn": "0000798354-20-000020",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-06"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 140000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 92000000,
              "accn": "0000798354-20-000020",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-06"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 92000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 181000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 181000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 41000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 41000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 303000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 303000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 303000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 23000000,
              "accn": "0000798354-21-000008",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-04-28",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 28000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 6000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 58000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 30000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 118000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 118000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2021"
            }
          ]
        }
      },
      "BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual": {
        "label": "Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual",
        "description": "This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 3000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 5000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 5000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 6000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 6000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 3000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 5000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 6000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            }
          ]
        }
      },
      "BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual": {
        "label": "Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual",
        "description": "This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.",
        "units": {
          "USD": [
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 86000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 2000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 16000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 123000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 21000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 29000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 29000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities",
        "description": "Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.",
        "units": {
          "USD": [
            {
              "end": "2017-12-31",
              "val": 20000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "end": "2017-12-31",
              "val": 20000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 20000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles",
        "description": "The amount of identifiable intangible assets recognized as of the acquisition date.",
        "units": {
          "USD": [
            {
              "end": "2013-01-14",
              "val": 571000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2017-09-30",
              "val": 132000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 163000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "end": "2017-12-31",
              "val": 163000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02"
            },
            {
              "end": "2017-12-31",
              "val": 163000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-10-31",
              "val": 353000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2018Q3I"
            }
          ]
        }
      },
      "BusinessExitCosts1": {
        "label": "Business Exit Costs",
        "description": "Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 48000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 40000000,
              "accn": "0000798354-20-000020",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-06"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 40000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 40000000,
              "accn": "0000798354-20-000020",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-06"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 40000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 44000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 44000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 4000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 4000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 124000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 124000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 6000000,
              "accn": "0000798354-21-000008",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-04-28",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 5000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 6000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 1000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 15000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 15000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2022"
            }
          ]
        }
      },
      "CapitalizedComputerSoftwareAmortization": {
        "label": "Capitalized Computer Software, Amortization (Deprecated 2016-01-31)",
        "description": "For each income statement presented, the amount charged to expense for amortization of capitalized computer software costs.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 43000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 45000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 58000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            }
          ]
        }
      },
      "CapitalizedContractCostAmortization": {
        "label": "Capitalized Contract Cost, Amortization",
        "description": "Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 24000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 50000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 26000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 73000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 23000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 106000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 106000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 106000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 105000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 105000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 105000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 124000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 124000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 124000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 148000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 148000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 148000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 173000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 173000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 173000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 195000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 195000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 195000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 221000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 221000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 228000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025"
            }
          ]
        }
      },
      "CapitalizedContractCostImpairmentLoss": {
        "label": "Capitalized Contract Cost, Impairment Loss",
        "description": "Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer.",
        "units": {
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        "description": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
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              "val": -316000000,
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            {
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            {
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            {
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            {
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          ]
        }
      },
      "CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths": {
        "label": "Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months",
        "description": "The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.",
        "units": {
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          ]
        }
      },
      "CashProvidedByUsedInDiscontinuedOperationsFinancingActivities": {
        "label": "Cash Provided by (Used in) Discontinued Operations, Financing Activities (Deprecated 2009-01-31)",
        "description": "Cash provided by or used in the financing activities of the entity's discontinued operations during the period. The reporting entity may disclose the net cash flows from discontinued operations below the net cash flows from financing activities or include cash flows from discontinued operations, by category (operating, investing, or financing), in the body of the cash flow statement. This element is used to disclose cash flows from the financing activities of discontinued operations as a component of net cash flows from discontinued operations, which is reported below net cash flows from financing activities of continuing operations.",
        "units": {
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            {
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          ]
        }
      },
      "CashProvidedByUsedInDiscontinuedOperationsInvestingActivities": {
        "label": "Cash Provided by (Used in) Discontinued Operations, Investing Activities (Deprecated 2009-01-31)",
        "description": "Cash provided by or used in the investing activities of the entity's discontinued operations during the period. The reporting entity may disclose the net cash flows from discontinued operations below the net cash flows from financing activities or include cash flows from discontinued operations, by category (operating, investing, or financing), in the body of the cash flow statement. This element is used to disclose cash flows from the investing activities of discontinued operations as a component of net cash flows from discontinued operations, which is reported below net cash flows from financing activities of continuing operations.",
        "units": {
          "USD": [
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              "accn": "0001193125-09-167025",
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              "filed": "2009-08-06"
            },
            {
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              "fy": 2009,
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            }
          ]
        }
      },
      "CashProvidedByUsedInDiscontinuedOperationsOperatingActivities": {
        "label": "Cash Provided by (Used in) Discontinued Operations, Operating Activities (Deprecated 2009-01-31)",
        "description": "Cash provided by or used in the operating activities of the entity's discontinued operations during the period. The reporting entity may disclose the net cash flows from discontinued operations below the net cash flows from financing activities or include cash flows from discontinued operations, by category (operating, investing, or financing), in the body of the cash flow statement. This element is used to disclose cash flows from the operating activities of discontinued operations as a component of net cash flows from discontinued operations, which is reported below net cash flows from financing activities of continuing operations.",
        "units": {
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            },
            {
              "start": "2009-01-01",
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              "val": 14000000,
              "accn": "0001193125-09-167025",
              "fy": 2009,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2009-08-06"
            }
          ]
        }
      },
      "CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations": {
        "label": "Cash Provided by (Used in) Financing Activities, Discontinued Operations",
        "description": "Amount of cash inflow (outflow) of financing activities of discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.",
        "units": {
          "USD": [
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              "val": -68000000,
              "accn": "0001193125-10-042577",
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              "filed": "2010-02-26",
              "frame": "CY2007"
            },
            {
              "start": "2008-01-01",
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              "val": 12000000,
              "accn": "0001193125-09-227470",
              "fy": 2009,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2009-11-06"
            },
            {
              "start": "2008-01-01",
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              "val": 35000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
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              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
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              "filed": "2024-02-22"
            },
            {
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              "end": "2022-12-31",
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              "form": "10-K",
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              "frame": "CY2022"
            },
            {
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              "end": "2023-12-31",
              "val": 26000000,
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              "fy": 2023,
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              "form": "10-K",
              "filed": "2024-02-22"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 26000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2023"
            },
            {
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              "val": 24000000,
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              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2024"
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          ]
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      },
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        "label": "Defined Benefit Plan, Funded (Unfunded) Status of Plan",
        "description": "Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.",
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              "filed": "2025-07-24"
            },
            {
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      },
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        "label": "Defined Benefit Plan, Interest Cost",
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
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            {
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              "end": "2019-09-30",
              "val": 3000000,
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              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-11-07",
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              "end": "2019-12-31",
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              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
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              "form": "10-K",
              "filed": "2021-02-26"
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              "frame": "CY2019"
            },
            {
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              "end": "2020-12-31",
              "val": 20000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
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              "form": "10-K",
              "filed": "2021-02-26"
            },
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              "form": "10-K",
              "filed": "2022-02-24"
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              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2020"
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              "val": 16000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 16000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23"
            },
            {
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              "end": "2021-12-31",
              "val": 16000000,
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              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2021"
            },
            {
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              "form": "10-K",
              "filed": "2023-02-23"
            },
            {
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              "val": 17000000,
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              "filed": "2024-02-22"
            },
            {
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              "end": "2022-12-31",
              "val": 17000000,
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              "form": "10-K",
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              "frame": "CY2022"
            },
            {
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              "val": 29000000,
              "accn": "0000798354-24-000037",
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              "form": "10-K",
              "filed": "2024-02-22"
            },
            {
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              "end": "2023-12-31",
              "val": 29000000,
              "accn": "0000798354-25-000047",
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              "fp": "FY",
              "form": "10-K",
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              "frame": "CY2023"
            },
            {
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              "form": "10-K",
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          ]
        }
      },
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        "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit)",
        "description": "Amount of net periodic benefit cost (credit) for defined benefit plan.",
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              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
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              "end": "2019-09-30",
              "val": -1000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -1000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
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              "end": "2019-12-31",
              "val": -1000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
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              "end": "2019-12-31",
              "val": -1000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2019"
            },
            {
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              "end": "2020-12-31",
              "val": -4000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
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              "end": "2020-12-31",
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              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
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              "end": "2020-12-31",
              "val": -4000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2020"
            },
            {
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              "end": "2021-12-31",
              "val": -7000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -7000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23"
            },
            {
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              "end": "2021-12-31",
              "val": -7000000,
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              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2021"
            },
            {
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              "end": "2022-12-31",
              "val": -1000000,
              "accn": "0000798354-23-000004",
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              "form": "10-K",
              "filed": "2023-02-23"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -1000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -1000000,
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              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2022"
            },
            {
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              "end": "2023-12-31",
              "val": 3000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22"
            },
            {
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              "end": "2023-12-31",
              "val": 3000000,
              "accn": "0000798354-25-000047",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2023"
            },
            {
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              "end": "2024-12-31",
              "val": 5000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2024"
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          ]
        }
      },
      "DefinedBenefitPlanServiceCost": {
        "label": "Defined Benefit Plan, Service Cost",
        "description": "Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.",
        "units": {
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              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
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              "end": "2019-09-30",
              "val": 1000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07",
              "frame": "CY2019Q3"
            }
          ]
        }
      },
      "DefinedContributionPlanCostRecognized": {
        "label": "Defined Contribution Plan, Cost",
        "description": "Amount of cost for defined contribution plan.",
        "units": {
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              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2011"
            },
            {
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              "end": "2012-12-31",
              "val": 33000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20"
            },
            {
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              "end": "2012-12-31",
              "val": 33000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 36000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 36000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20"
            },
            {
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              "end": "2013-12-31",
              "val": 36000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 37000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 37000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19"
            },
            {
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              "end": "2014-12-31",
              "val": 37000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2015"
            },
            {
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              "val": 42000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 42000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
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              "end": "2016-12-31",
              "val": 42000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2016"
            },
            {
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              "val": 44000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
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              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
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              "end": "2017-12-31",
              "val": 44000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
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              "end": "2017-12-31",
              "val": 44000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 44000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 44000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
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              "end": "2018-12-31",
              "val": 44000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
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              "end": "2019-12-31",
              "val": 65000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
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              "val": 65000000,
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              "fy": 2020,
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              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
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              "end": "2019-12-31",
              "val": 65000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2019"
            },
            {
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              "end": "2020-12-31",
              "val": 38000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
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              "val": 38000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
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              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
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              "val": 38000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2020"
            },
            {
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              "val": 58000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
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              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
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              "val": 58000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23"
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            {
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      "EquityMethodInvestmentOwnershipPercentage": {
        "label": "Equity Method Investment, Ownership Percentage",
        "description": "The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.",
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          ]
        }
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      "EquityMethodInvestmentSummarizedFinancialInformationAssets": {
        "label": "Equity Method Investment, Summarized Financial Information, Assets (Deprecated 2020-01-31)",
        "description": "The amount of assets reported by an equity method investment of the entity.",
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        }
      },
      "EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets": {
        "label": "Equity Method Investment, Summarized Financial Information, Current Assets (Deprecated 2020-01-31)",
        "description": "The amount of current assets reported by an equity method investment of the entity.",
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        }
      },
      "EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities": {
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        "description": "The amount of net income (loss) reported by an equity method investment of the entity.",
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        }
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      "EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets": {
        "label": "Equity Method Investment, Summarized Financial Information, Noncurrent Assets (Deprecated 2020-01-31)",
        "description": "The amount of noncurrent assets reported by an equity method investment of the entity.",
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      "EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities": {
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        "description": "The amount of noncurrent liabilities reported by an equity method investment of the entity.",
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        "label": "Equity Method Investment, Summarized Financial Information, Revenue (Deprecated 2020-01-31)",
        "description": "Amount of revenue from sale of product and rendering of service reported by equity method investee.",
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      "EquityMethodInvestments": {
        "label": "Equity Method Investments",
        "description": "This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
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              "accn": "0000798354-23-000004",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 216000000,
              "accn": "0000798354-24-000037",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 238000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 348000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
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        "label": "Finance Lease, Liability, to be Paid, Year Five",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
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              "form": "10-Q",
              "filed": "2019-05-01",
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            {
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              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 7000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
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              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2019Q4I"
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            {
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              "accn": "0000798354-21-000004",
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              "form": "10-K",
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              "frame": "CY2020Q4I"
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              "fy": 2021,
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              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2021Q4I"
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              "accn": "0000798354-23-000004",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2022Q4I"
            },
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              "accn": "0000798354-24-000037",
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              "fp": "FY",
              "form": "10-K",
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              "frame": "CY2023Q4I"
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            {
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              "accn": "0000798354-25-000047",
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              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2024Q4I"
            },
            {
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              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025Q4I"
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        "label": "Finance Lease, Liability, to be Paid, Year Four",
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              "form": "10-Q",
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              "form": "10-Q",
              "filed": "2019-11-07",
              "frame": "CY2019Q3I"
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              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2019Q4I"
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            {
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              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
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              "end": "2021-12-31",
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              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2021Q4I"
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            {
              "end": "2022-12-31",
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              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
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              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
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              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 205000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025Q4I"
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          ]
        }
      },
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        "label": "Finance Lease, Liability, to be Paid, Year Three",
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              "accn": "0000798354-19-000009",
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              "form": "10-Q",
              "filed": "2019-05-01",
              "frame": "CY2019Q1I"
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            {
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              "val": 7000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26",
              "frame": "CY2019Q2I"
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              "end": "2019-09-30",
              "val": 70000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 64000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2019Q4I"
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              "end": "2020-12-31",
              "val": 98000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
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            {
              "end": "2021-12-31",
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              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2021Q4I"
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              "end": "2022-12-31",
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              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 149000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 137000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 239000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025Q4I"
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          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDueYearTwo": {
        "label": "Finance Lease, Liability, to be Paid, Year Two",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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              "val": 5000000,
              "accn": "0000798354-19-000009",
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              "form": "10-Q",
              "filed": "2019-05-01",
              "frame": "CY2019Q1I"
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            {
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              "val": 7000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26",
              "frame": "CY2019Q2I"
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            {
              "end": "2019-09-30",
              "val": 82000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07",
              "frame": "CY2019Q3I"
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            {
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              "accn": "0000798354-20-000006",
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              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2019Q4I"
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            {
              "end": "2020-12-31",
              "val": 103000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
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            {
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              "accn": "0000798354-22-000004",
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              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2021Q4I"
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            {
              "end": "2022-12-31",
              "val": 158000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 187000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 202000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 295000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025Q4I"
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          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear": {
        "label": "Finance Lease, Liability, to be Paid, Remainder of Fiscal Year",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in remainder of current fiscal year.",
        "units": {
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              "val": 2000000,
              "accn": "0000798354-19-000009",
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              "form": "10-Q",
              "filed": "2019-05-01",
              "frame": "CY2019Q1I"
            },
            {
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              "val": 2000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26",
              "frame": "CY2019Q2I"
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            {
              "end": "2019-09-30",
              "val": 16000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityUndiscountedExcessAmount": {
        "label": "Finance Lease, Liability, Undiscounted Excess Amount",
        "description": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.",
        "units": {
          "USD": [
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              "end": "2019-03-31",
              "val": 0,
              "accn": "0000798354-19-000009",
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              "form": "10-Q",
              "filed": "2019-05-01",
              "frame": "CY2019Q1I"
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              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26",
              "frame": "CY2019Q2I"
            },
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              "end": "2019-09-30",
              "val": 8000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07",
              "frame": "CY2019Q3I"
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              "end": "2019-12-31",
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              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2019Q4I"
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              "accn": "0000798354-21-000004",
              "fy": 2020,
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              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
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              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2021Q4I"
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              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
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              "frame": "CY2022Q4I"
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              "accn": "0000798354-24-000037",
              "fy": 2023,
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              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2023Q4I"
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              "val": 73000000,
              "accn": "0000798354-25-000047",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 137000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025Q4I"
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          ]
        }
      },
      "FinanceLeasePrincipalPayments": {
        "label": "Finance Lease, Principal Payments",
        "description": "Amount of cash outflow for principal payment on finance lease.",
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              "end": "2019-03-31",
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              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01"
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              "end": "2019-03-31",
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              "accn": "0000798354-20-000013",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-08",
              "frame": "CY2019Q1"
            },
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              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 11000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26"
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              "end": "2019-06-30",
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              "accn": "0000798354-20-000020",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-06"
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              "end": "2019-09-30",
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              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
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              "end": "2019-09-30",
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              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
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              "end": "2019-12-31",
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              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
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              "end": "2019-12-31",
              "val": 37000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
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              "end": "2019-12-31",
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              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 59000000,
              "accn": "0000798354-20-000013",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-08",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 105000000,
              "accn": "0000798354-20-000020",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-06"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 161000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 187000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 187000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
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              "filed": "2025-07-24",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 60000000,
              "accn": "0000798354-25-000171",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-30"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": -300000,
              "accn": "0000798354-25-000171",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-30",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -60000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025"
            }
          ]
        }
      },
      "FurnitureAndFixturesGross": {
        "label": "Furniture and Fixtures, Gross",
        "description": "Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.",
        "units": {
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            {
              "end": "2010-12-31",
              "val": 161000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 163000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 163000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "end": "2012-12-31",
              "val": 139000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2012Q4I"
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          ]
        }
      },
      "FutureAmortizationExpenseYearFive": {
        "label": "Future Amortization Expense, Year Five (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years.",
        "units": {
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              "end": "2010-12-31",
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              "accn": "0001193125-11-045000",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 110000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearFour": {
        "label": "Future Amortization Expense, Year Four (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year four of the five succeeding fiscal years.",
        "units": {
          "USD": [
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              "end": "2010-12-31",
              "val": 130000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 150000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearOne": {
        "label": "Future Amortization Expense, Year One (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year one of the five succeeding fiscal years.",
        "units": {
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              "end": "2010-12-31",
              "val": 150000000,
              "accn": "0001193125-11-045000",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 160000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearThree": {
        "label": "Future Amortization Expense, Year Three (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year three of the five succeeding fiscal years.",
        "units": {
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              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 140000000,
              "accn": "0001193125-11-045000",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
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            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 160000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
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          ]
        }
      },
      "FutureAmortizationExpenseYearTwo": {
        "label": "Future Amortization Expense, Year Two (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years.",
        "units": {
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              "accn": "0001193125-11-045000",
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            {
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              "frame": "CY2011"
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      },
      "GainLossOnSaleOfBusiness": {
        "label": "Gain (Loss) on Disposition of Business",
        "description": "Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.",
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            {
              "start": "2017-01-01",
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              "accn": "0000798354-19-000005",
              "fy": 2018,
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              "filed": "2019-02-21",
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            {
              "start": "2017-01-01",
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              "form": "10-Q",
              "filed": "2017-08-02"
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            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 10000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 10000000,
              "accn": "0000798354-17-000019",
              "fy": 2017,
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              "form": "10-Q",
              "filed": "2017-08-02"
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            {
              "start": "2017-04-01",
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              "val": 10000000,
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              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "start": "2017-04-01",
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              "val": 10000000,
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              "fy": 2018,
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              "form": "10-Q",
              "filed": "2018-08-01"
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            {
              "start": "2017-04-01",
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              "val": 10000000,
              "accn": "0000798354-19-000005",
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              "filed": "2019-02-21",
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            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 10000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 10000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
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            {
              "start": "2017-07-01",
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              "val": 0,
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            {
              "start": "2017-07-01",
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              "val": 0,
              "accn": "0000798354-18-000005",
              "fy": 2017,
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              "filed": "2018-02-22"
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            {
              "start": "2017-07-01",
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              "fy": 2018,
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            {
              "start": "2017-07-01",
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              "accn": "0000798354-19-000005",
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              "form": "10-K",
              "filed": "2019-02-21",
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            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 10000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
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            {
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              "filed": "2019-02-21"
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            {
              "start": "2017-01-01",
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              "val": 10000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
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              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2017"
            },
            {
              "start": "2017-10-01",
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              "val": 0,
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              "fy": 2017,
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              "filed": "2018-02-22"
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            {
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              "fy": 2018,
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              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2017Q4"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 232000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-02"
            },
            {
              "start": "2018-01-01",
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              "val": 232000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
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              "filed": "2019-02-21"
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            {
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              "val": 232000000,
              "accn": "0000798354-19-000009",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01"
            },
            {
              "start": "2018-01-01",
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              "val": 232000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
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              "filed": "2020-02-27",
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            },
            {
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              "val": 229000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
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              "form": "10-Q",
              "filed": "2018-08-01"
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            {
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              "accn": "0000798354-19-000019",
              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-07-26"
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            {
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            {
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              "filed": "2019-02-21"
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            {
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            {
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            {
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            {
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              "accn": "0000798354-19-000025",
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            {
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              "val": -2000000,
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              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
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            {
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            {
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            {
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        "label": "Goodwill, Acquired During Period",
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            },
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            {
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            {
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            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
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              "fy": 2014,
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              "frame": "CY2017"
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            {
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              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025"
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        }
      },
      "GoodwillImpairedAccumulatedImpairmentLoss": {
        "label": "Goodwill, Impaired, Accumulated Impairment Loss",
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              "fy": 2025,
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          ]
        }
      },
      "GoodwillImpairmentLoss": {
        "label": "Goodwill, Impairment Loss",
        "description": "Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
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              "fy": 2018,
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              "filed": "2019-02-21",
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        "label": "Investments in and Advances to Affiliates, at Fair Value, Gross Reductions",
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            {
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              "val": 61000000,
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      },
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              "filed": "2011-02-24"
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              "val": 105000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
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              "filed": "2014-02-20"
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              "filed": "2016-02-19"
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              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23",
              "frame": "CY2014"
            },
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              "val": 115000000,
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              "form": "10-K",
              "filed": "2016-02-19"
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            {
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              "val": 115000000,
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              "filed": "2017-02-23"
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              "filed": "2019-05-01"
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            {
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              "filed": "2019-07-26"
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            {
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              "val": 126000000,
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            {
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              "filed": "2020-02-27",
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            {
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              "filed": "2019-02-21"
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            {
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            {
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              "form": "10-Q",
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            {
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              "val": 118000000,
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              "filed": "2019-11-07"
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      },
      "NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1": {
        "label": "Noncash or Part Noncash Divestiture, Amount of Consideration Received",
        "description": "Amount of noncash consideration received for selling an asset or business through a noncash (or part noncash) transaction.",
        "units": {
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              "end": "2019-09-30",
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 726000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 726000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0000798354-22-000009",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-04-28",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0000798354-22-000015",
              "fy": 2022,
              "fp": "Q2",
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            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0000798354-22-000019",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-10-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 111000000,
              "accn": "0000798354-22-000009",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-04-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 111000000,
              "accn": "0000798354-23-000008",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-04-26",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 111000000,
              "accn": "0000798354-22-000015",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-07-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 111000000,
              "accn": "0000798354-23-000014",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-07-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 111000000,
              "accn": "0000798354-22-000019",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-10-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 111000000,
              "accn": "0000798354-23-000018",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-10-25"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 0,
              "accn": "0000798354-23-000008",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-04-26",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 0,
              "accn": "0000798354-23-000014",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-07-27"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 0,
              "accn": "0000798354-23-000018",
              "fy": 2023,
              "fp": "Q3",
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          ]
        }
      },
      "NoncontrollingInterestDecreaseFromDeconsolidation": {
        "label": "Noncontrolling Interest, Decrease from Deconsolidation",
        "description": "The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest.",
        "units": {
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              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 762000000,
              "accn": "0000798354-20-000024",
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 762000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2020-07-01",
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              "val": 762000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
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              "form": "10-Q",
              "filed": "2020-10-28"
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            {
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              "end": "2020-09-30",
              "val": 762000000,
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28",
              "frame": "CY2020Q3"
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            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 762000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 762000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 762000000,
              "accn": "0000798354-23-000004",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-23",
              "frame": "CY2020"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 59000000,
              "accn": "0000798354-24-000037",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-22",
              "frame": "CY2023"
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          ]
        }
      },
      "NonoperatingIncomeExpense": {
        "label": "Nonoperating Income (Expense)",
        "description": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).",
        "units": {
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              "end": "2017-06-30",
              "val": 2000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 2000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 2000000,
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              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
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            {
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              "val": 0,
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              "filed": "2018-11-01",
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              "start": "2018-01-01",
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              "val": 0,
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              "form": "10-Q",
              "filed": "2019-05-01",
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              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 3000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
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              "filed": "2018-08-01"
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              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 3000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 3000000,
              "accn": "0000798354-18-000017",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 3000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 6000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
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            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 3000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 3000000,
              "accn": "0000798354-19-000009",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 11000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 8000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26",
              "frame": "CY2019Q2"
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          ]
        }
      },
      "NotesIssued": {
        "label": "Notes Issued (Deprecated 2011-01-31)",
        "description": "The fair value of notes issued in noncash investing and financing activities.",
        "units": {
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              "val": 30000000,
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              "frame": "CY2008"
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              "val": 10000000,
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              "fy": 2010,
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              "filed": "2011-02-24",
              "frame": "CY2009"
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          ]
        }
      },
      "NotesIssued1": {
        "label": "Notes Issued",
        "description": "The fair value of notes issued in noncash investing and financing activities.",
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              "end": "2009-12-31",
              "val": 10000000,
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              "fy": 2011,
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              "frame": "CY2009"
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          ]
        }
      },
      "NotesPayable": {
        "label": "Notes Payable",
        "description": "Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.",
        "units": {
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            {
              "end": "2011-06-30",
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              "filed": "2014-02-20",
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          ]
        }
      },
      "NotionalAmountOfInterestRateCashFlowHedgeDerivatives": {
        "label": "Notional Amount of Interest Rate Cash Flow Hedge Derivatives (Deprecated 2013-01-31)",
        "description": "Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.",
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      },
      "NumberOfBusinessesAcquired": {
        "label": "Number of Businesses Acquired",
        "description": "The number of businesses acquired by the entity during the period.",
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            },
            {
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              "fy": 2018,
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              "filed": "2018-05-02"
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            {
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              "form": "10-K",
              "filed": "2019-02-21",
              "frame": "CY2017"
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          ],
          "pure": [
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              "val": 1,
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              "fy": 2011,
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              "form": "10-K",
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              "frame": "CY2010"
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            {
              "start": "2011-01-01",
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              "fy": 2011,
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              "filed": "2012-02-24",
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          ]
        }
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      "OperatingIncomeLoss": {
        "label": "Operating Income (Loss)",
        "description": "The net result for the period of deducting operating expenses from operating revenues.",
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              "val": 736000000,
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            {
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              "fy": 2009,
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              "form": "10-Q",
              "filed": "2009-08-06"
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            {
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              "val": 227000000,
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              "fy": 2009,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2009-08-06",
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            {
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              "val": 678000000,
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              "fy": 2009,
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              "form": "10-Q",
              "filed": "2009-11-06"
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            {
              "start": "2008-07-01",
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              "val": 217000000,
              "accn": "0001193125-09-227470",
              "fy": 2009,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2009-11-06",
              "frame": "CY2008Q3"
            },
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 908000000,
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              "fy": 2009,
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              "filed": "2010-02-26"
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            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 908000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-03-31",
              "val": 225000000,
              "accn": "0001193125-10-110738",
              "fy": 2010,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2010-05-06"
            },
            {
              "start": "2009-01-01",
              "end": "2009-03-31",
              "val": 225000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q1"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 450000000,
              "accn": "0001193125-09-167025",
              "fy": 2009,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2009-08-06"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 459000000,
              "accn": "0001193125-10-178791",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 232000000,
              "accn": "0001193125-09-167025",
              "fy": 2009,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2009-08-06"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 234000000,
              "accn": "0001193125-10-178791",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
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              "form": "10-K",
              "filed": "2024-02-22"
            },
            {
              "end": "2023-12-31",
              "val": 628000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 595000000,
              "accn": "0000798354-25-000047",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-20"
            },
            {
              "end": "2024-12-31",
              "val": 595000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 589000000,
              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-19",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDue": {
        "label": "Operating Leases, Future Minimum Payments Due",
        "description": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 310000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 350000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 274000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 333000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 383000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 344000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 424000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 410000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 430000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "end": "2018-12-31",
              "val": 430000000,
              "accn": "0000798354-19-000009",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01"
            },
            {
              "end": "2018-12-31",
              "val": 430000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26"
            },
            {
              "end": "2018-12-31",
              "val": 430000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
              "end": "2018-12-31",
              "val": 430000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueCurrent": {
        "label": "Operating Leases, Future Minimum Payments Due, Next Twelve Months",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 91000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 92000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 73000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 83000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 93000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 89000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 107000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 109000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 94000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "end": "2018-12-31",
              "val": 94000000,
              "accn": "0000798354-19-000009",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01"
            },
            {
              "end": "2018-12-31",
              "val": 94000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26"
            },
            {
              "end": "2018-12-31",
              "val": 94000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
              "end": "2018-12-31",
              "val": 94000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 24000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 29000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 25000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 29000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 27000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 26000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 28000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 30000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 40000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "end": "2018-12-31",
              "val": 40000000,
              "accn": "0000798354-19-000009",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01"
            },
            {
              "end": "2018-12-31",
              "val": 40000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26"
            },
            {
              "end": "2018-12-31",
              "val": 40000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
              "end": "2018-12-31",
              "val": 40000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 35000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 42000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 35000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 41000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 40000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 34000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 35000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 37000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 51000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "end": "2018-12-31",
              "val": 51000000,
              "accn": "0000798354-19-000009",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01"
            },
            {
              "end": "2018-12-31",
              "val": 51000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26"
            },
            {
              "end": "2018-12-31",
              "val": 51000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
              "end": "2018-12-31",
              "val": 51000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInThreeYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Three Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 51000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 57000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 50000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 56000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 60000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 54000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 68000000,
              "accn": "0000798354-17-000006",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-23",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 52000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 62000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "end": "2018-12-31",
              "val": 62000000,
              "accn": "0000798354-19-000009",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-01"
            },
            {
              "end": "2018-12-31",
              "val": 62000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-26"
            },
            {
              "end": "2018-12-31",
              "val": 62000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
              "end": "2018-12-31",
              "val": 62000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInTwoYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Two Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 70000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 78000000,
              "accn": "0001193125-12-077375",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 59000000,
              "accn": "0001193125-13-071589",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-22",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 76000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 77000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 74000000,
              "accn": "0001628280-16-011435",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-19",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 91000000,
              "accn": "0000798354-17-000006",
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            {
              "end": "2018-12-31",
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              "filed": "2016-02-19",
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              "fy": 2015,
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              "frame": "CY2015Q3I"
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              "filed": "2023-02-23"
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              "end": "2024-12-31",
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              "filed": "2025-04-25"
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            {
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              "val": 863000000,
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              "filed": "2026-02-19"
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              "end": "2025-12-31",
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              "filed": "2013-02-22"
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-10-30"
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              "start": "2013-01-01",
              "end": "2013-09-30",
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              "form": "10-Q",
              "filed": "2014-10-29"
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              "end": "2013-12-31",
              "val": 11000000,
              "accn": "0001193125-14-060861",
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              "form": "10-K",
              "filed": "2014-02-20"
            },
            {
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              "fp": "FY",
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              "filed": "2015-02-20",
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            {
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              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-04-25"
            },
            {
              "end": "2024-12-31",
              "val": 404000000,
              "accn": "0000798354-25-000163",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
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            },
            {
              "end": "2024-12-31",
              "val": 404000000,
              "accn": "0000798354-25-000171",
              "fy": 2025,
              "fp": "Q3",
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            {
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              "accn": "0000798354-26-000009",
              "fy": 2025,
              "fp": "FY",
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              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 566000000,
              "accn": "0000798354-25-000104",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
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            },
            {
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            {
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              "accn": "0000798354-25-000171",
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              "frame": "CY2025Q3I"
            },
            {
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              "accn": "0000798354-26-000009",
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            },
            {
              "end": "2025-12-31",
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      },
      "ProceedsFromDivestitureOfBusinesses": {
        "label": "Proceeds from Divestiture of Businesses",
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              "val": 37000000,
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              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
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              "val": 37000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
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            },
            {
              "start": "2015-01-01",
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            },
            {
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            },
            {
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              "fy": 2018,
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              "filed": "2019-02-21",
              "frame": "CY2016"
            },
            {
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            },
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              "filed": "2018-08-01"
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              "val": 19000000,
              "accn": "0000798354-17-000023",
              "fy": 2017,
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              "filed": "2017-11-01"
            },
            {
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              "filed": "2018-11-01"
            },
            {
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              "end": "2017-12-31",
              "val": 17000000,
              "accn": "0000798354-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-22"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 17000000,
              "accn": "0000798354-19-000005",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-21"
            },
            {
              "start": "2017-01-01",
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              "val": 17000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 419000000,
              "accn": "0000798354-18-000009",
              "fy": 2018,
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              "filed": "2018-05-02"
            },
            {
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              "form": "10-Q",
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            },
            {
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              "val": 419000000,
              "accn": "0000798354-18-000017",
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              "form": "10-Q",
              "filed": "2018-08-01"
            },
            {
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              "val": 419000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
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              "filed": "2019-07-26"
            },
            {
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              "val": 419000000,
              "accn": "0000798354-18-000021",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 419000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 419000000,
              "accn": "0000798354-19-000005",
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              "filed": "2019-02-21"
            },
            {
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              "val": 419000000,
              "accn": "0000798354-20-000006",
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              "filed": "2020-02-27"
            },
            {
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              "accn": "0000798354-21-000004",
              "fy": 2020,
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              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
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              "val": 0,
              "accn": "0000798354-19-000009",
              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-05-01"
            },
            {
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              "end": "2019-03-31",
              "val": 0,
              "accn": "0000798354-20-000013",
              "fy": 2020,
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              "form": "10-Q",
              "filed": "2020-05-08",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 10000000,
              "accn": "0000798354-19-000019",
              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-07-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 10000000,
              "accn": "0000798354-20-000020",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-06"
            },
            {
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              "end": "2019-09-30",
              "val": 39000000,
              "accn": "0000798354-19-000025",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-07"
            },
            {
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              "end": "2019-09-30",
              "val": 39000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51000000,
              "accn": "0000798354-20-000006",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-27"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 584000000,
              "accn": "0000798354-20-000013",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-08"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 584000000,
              "accn": "0000798354-21-000008",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-04-28",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 584000000,
              "accn": "0000798354-20-000020",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-06"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 584000000,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 578000000,
              "accn": "0000798354-20-000024",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 578000000,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 579000000,
              "accn": "0000798354-21-000004",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 579000000,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0000798354-21-000008",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-04-28",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0000798354-21-000014",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-28"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0000798354-21-000018",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0000798354-22-000004",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-24",
              "frame": "CY2021"
            }
          ]
        }
      },
      "ProceedsFromDivestitureOfBusinessesNetOfCashDivested": {
        "label": "Proceeds from Divestiture of Businesses, Net of Cash Divested",
        "description": "This element represents the cash inflow during the period from the sale of a component of the entity.",
        "units": {
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              "end": "2007-12-31",
              "val": 0,
              "accn": "0001193125-10-042577",
              "fy": 2009,
              "fp": "FY",
              "form": "10-K",
              "filed": "2010-02-26",
              "frame": "CY2007"
            },
            {
              "start": "2008-01-01",
              "end": "2008-09-30",
              "val": 513000000,
              "accn": "0001193125-09-227470",
              "fy": 2009,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2009-11-06"
            },
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 497000000,
              "accn": "0001193125-11-045000",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 497000000,
              "accn": "0001193125-10-042577",
              "fy": 2009,
              "fp": "FY",
              "form": "10-K",
              "filed": "2010-02-26"
            },
            {
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              "val": 0,
              "accn": "0001193125-09-227470",
              "fy": 2009,
              "fp": "Q3",
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              "filed": "2009-11-06"
            },
            {
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              "accn": "0001193125-10-042577",
              "fy": 2009,
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              "frame": "CY2009"
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          ]
        }
      },
      "ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital": {
        "label": "Proceeds from Equity Method Investment, Distribution, Return of Capital",
        "description": "Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.",
        "units": {
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              "val": 42000000,
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            {
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              "val": 42000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 32000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 32000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 116000000,
              "accn": "0001193125-13-312502",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 116000000,
              "accn": "0001193125-14-286896",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 116000000,
              "accn": "0001193125-13-418089",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 116000000,
              "accn": "0001193125-14-387385",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-29"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 116000000,
              "accn": "0001193125-14-060861",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-20"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 116000000,
              "accn": "0001193125-15-056319",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-20"
            },
            {
              "start": "2013-01-01",
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