| **Income Taxes The Provision of Income Taxes (Details) - USD ($) $ in Millions** | 12 Months Ended |
|----------------------------------------------------------------------------------|-----------------|
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| **Income Tax Disclosure [Abstract]**                                             |            |   |   |
| Current federal tax                                                              | $ 209           | $ 148 | $ 248 |
| Current international tax                                                        | 1               | 0 | (1) |
| Total current tax                                                                | 210             | 148 | 247 |
| Deferred federal tax                                                             | 216             | (355) | 483 |
| Deferred international tax                                                       | 7               | 0 | 0 |
| Deferred income tax expense                                                      | 223             | (355) | 483 |
| Total provision (benefit) for income taxes                                       | $ 433           | $ (207) | $ 730 |

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| - Definition
Amount of current federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current national tax expense (benefit) for non-US (United States of America) jurisdiction.
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| - Definition
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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| - Definition
Amount of deferred federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, deferred national tax expense (benefit) for non-US (United States of America) jurisdiction.
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Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.
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| - Definition
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.
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| - Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
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