Income Taxes - Changes in Gross Unrecognized Tax Benefits (Details) - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2022 |
Dec. 31, 2021 |
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| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | ||
| Balance at beginning of year | $ (502) | $ (454) |
| Additions for tax positions of the current year | (19) | (32) |
| Additions for tax positions of prior years | (93) | (166) |
| Reductions for tax positions of prior years | 100 | 42 |
| Settlements with tax authorities | 24 | 95 |
| Lapse of statute of limitations | 29 | 13 |
| Balance at end of year | $ (461) | $ (502) |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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