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Fair Value of Financial Instruments (Schedule Of Investment Holdings Movements) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances | $ 133 | $ 776
Sales | (90) | (140)
Maturities | (8) | (21)
Settlements | (486) | (217)
Calls | (2) | (12)
Total | (453) | 386
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances | 141 | 427
Sales | (35) |
Maturities | (8) | (21)
Settlements | (68) | (43)
Calls |  | (5)
Total | 30 | 358
RMBS [Member] | Fixed Maturity AFS Securities [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances |  | 12
Total |  | 12
CMBS [Member] | Fixed Maturity AFS Securities [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances |  | 17
Total |  | 17
ABS [Member] | Fixed Maturity AFS Securities [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances | 241 | 250
Sales | (2) |
Settlements | (71) | (56)
Calls |  | (7)
Total | 168 | 187
Hybrid And Redeemable Preferred Securities [Member] | Fixed Maturity AFS Securities [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Calls | (2) |
Total | (2) |
Mortgage Loans On Real Estate [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances | 1 | 3
Settlements | (3) | (201)
Total | (2) | (198)
Trading Securities [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances |  | 179
Sales | (53) | (132)
Settlements | (74) | (45)
Total | (127) | 2
Equity Securities [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Sales |  | (8)
Total |  | (8)
Indexed Annuity Ceded Embedded Derivatives [Member] | Other Assets [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances | 50 | 16
Settlements | (276) | 2
Total | (226) | 18
Indexed Annuity And IUL Contracts [Member] | Future Contract Benefits [Member] |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |
Issuances | (300) | (128)
Settlements | 6 | 126
Total | $ (294) | $ (2)

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- Definition Represents decreases to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to calls of investments during the period. The alternative investments represented by this item are subject to significant unobservable inputs (Level 3) for purposes of measuring fair value. + References No definition available. + Details
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- Definition Represents decreases to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to maturities of investments during the period. The alternative investments represented by this item are subject to significant unobservable inputs (Level 3) for purposes of measuring fair value. + References No definition available. + Details
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- Definition Represents the net increase or decrease to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to purchases, sales, issuances, or settlements during the period. The alternative investments represented by this item are subject to significant unobservable inputs (Level 3) for purposes of measuring fair value. + References No definition available. + Details
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