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Income Taxes Income Taxes - Effective Tax Rates Differing From Prevailing Federal Corporate Income Tax Rates (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Reconciliation of Effective Tax Rates [Line Items] |  |  |
Tax on income from continuing operations at statutory rate | $ 0 | $ (92) | $ (38)
Tax on income from continuing operations at statutory rate,tax rate | 21.00% | 21.00% | 21.00%
Tax-exempt interest | $ (2) | $ (2) | $ (3)
Tax-exempt interest, tax rate | (114.00%) | 0.00% | 2.00%
Derivative, Gain (Loss) on Derivative, Net | $ 22 | $ (50) | $ (50)
Valuation allowance | $ (4) | $ 113 | $ 8
Valuation allowance, tax rate | (230.00%) | (26.00%) | (4.00%)
Other, net | $ 1 | $ 2 | $ 0
Foreign taxes | $ 8 | $ 6 | $ 40
Foreign taxes, tax rate | 448.00% | (1.00%) | (22.00%)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | $ 14 | $ 0 | $ (2)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent | 794.00% | 0.00% | 1.00%
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount |  | $ (29) | $ 28
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent |  | 7.00% | (15.00%)
Other, net, tax rate | 72.00% | 0.00% | 0.00%
Income tax expense (benefit) | $ 18 | $ (3) | $ 32
Effective Income Tax Rate Reconciliation, Percent | 991.00% | 1.00% | (18.00%)
Variable Interest Entity, Primary Beneficiary [Member] | Income Loss On Variable Interest Entities [Member] |  |  |
Reconciliation of Effective Tax Rates [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | $ (150) | $ (144) | $ (32)
Variable Interest Entity, Primary Beneficiary [Member] | Currency Swaps [Member] | Income Loss On Variable Interest Entities [Member] |  |  |
Reconciliation of Effective Tax Rates [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | 2 | (6) | (12)
Variable Interest Entity, Primary Beneficiary [Member] | Interest Rate Swaps [Member] | Income Loss On Variable Interest Entities [Member] |  |  |
Reconciliation of Effective Tax Rates [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | $ (152) | $ (138) | $ (20)

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