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Investments (Credit Loss Expense Incurred) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items] |  |  |
Gross credit loss expense recognized in net income (loss) | $ (11) | $ (26) | $ (16)
Associated amortization of DAC, VOBA, DSI and DFEL |  | 1 | 1
Net credit loss expense recognized in net income (loss) | (11) | (25) | (15)
Fixed Maturity AFS Securities [Member] | Corporate Bonds [Member] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items] |  |  |
Gross credit loss expense recognized in net income (loss) | (10) | (25) | (14)
Fixed Maturity AFS Securities [Member] | RMBS [Member] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items] |  |  |
Gross credit loss expense recognized in net income (loss) |  | $ (1) | (1)
Fixed Maturity AFS Securities [Member] | ABS [Member] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items] |  |  |
Gross credit loss expense recognized in net income (loss) |  |  | $ (1)
Fixed Maturity AFS Securities [Member] | Hybrid And Redeemable Preferred Securities [Member] |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items] |  |  |
Gross credit loss expense recognized in net income (loss) | $ (1) |  |

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- Definition Debt Securities, Available-for-sale, Allowance for Credit Loss, Associated Amortization + References No definition available. + Details
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- Definition Debt Securities, Available-for-sale, Allowance for Credit Loss, Not Previously Recorded, Before associated amortization. + References No definition available. + Details
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- Definition Debt Securities, Available-for-sale, Allowance for Credit Loss, Not Previously Recorded, Net of associated amortization + References No definition available. + Details
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