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Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income Tax Contingency [Line Items] |  |  |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | $ 2 | $ 2 |
Unrecognized Tax Benefits, Period Increase (Decrease) | $ 0 | $ 0 | $ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 21.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | $ 108 | $ 107 | $ 107
Effective Income Tax Rate Reconciliation, Percent | 7.00% | 251.00% | (157.00%)
Payments for Legal Settlements | $ 0 | $ 0 | $ (3)
Unrecognized Tax Benefits [Roll Forward] |  |  |
Beginning balance | 107 | 107 |
Additions for current year tax positions | 0 | 1 | 4
Additions for tax positions of prior years | 2 | 0 | 0
Reductions for tax positions of prior years | 0 | (1) | (16)
Lapse of statute of limitations | (1) | 0 | 0
Ending balance | 108 | 107 | 107
Unrecognized Tax Benefits, Income Tax Penalties Accrued | 0 | 0 |
Unrecognized Tax Benefits, Income Tax Penalties Expense | $ 0 | $ 0 | $ 0
UNITED STATES |  |  |
Income Tax Contingency [Line Items] |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | $ 34 |  |
Effective Income Tax Rate Reconciliation, Percent | 35.00% |  |

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