| **Income Taxes - Schedule of Components of Income Tax Provision (Details) - USD ($) $ in Millions** | 12 Months Ended |
|-----------------------------------------------------------------------------------------------------|-----------------|
||
| **Current:**                                                                                        |            |   |   |
| U.S.                                                                                                | $ 139           | $ (55) | $ 365 |
| Foreign                                                                                             | 208             | 225 | 601 |
| Total current                                                                                       | 347             | 170 | 966 |
| **Deferred:**                                                                                       |            |   |   |
| U.S.                                                                                                | 269             | (762) | (52) |
| Foreign                                                                                             | 80              | (47) | (18) |
| Total deferred                                                                                      | 349             | (809) | (70) |
| Provision (benefit) for income taxes                                                                | $ 696           | $ (639) | $ 896 |

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| - Definition
Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.
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Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.
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| - Definition
Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.
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Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.
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