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Fair Value of Financial Instruments (Schedule Of Investment Holdings Movements) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Issuances | $ 211 | $ 778 | $ 345 | $ 1,556
Sales | (105) | (88) | (195) | (228)
Maturities | (26) | (4) | (34) | (25)
Settlements | (232) | (220) | (460) | (439)
Calls | (11) | (43) | (13) | (55)
Total | (163) | 423 | (357) | 809
Corporate Bonds [Member] |  |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Issuances | 268 | 426 | 409 | 853
Sales | (2) |  | (37) |
Maturities | (26) | (4) | (34) | (25)
Settlements | (234) | (86) | (302) | (129)
Calls | (11) | (43) | (11) | (48)
Total | (5) | 293 | 25 | 651
State And Municipal Bonds [Member] |  |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Sales | (1) |  | (1) |
Total | (1) |  | (1) |
RMBS [Member] |  |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Issuances | 5 |  | 5 | 12
Total | 5 |  | 5 | 12
CMBS [Member] |  |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Issuances |  |  |  | 17
Settlements | (4) |  | (4) |
Total | (4) |  | (4) | 17
ABS [Member] |  |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Issuances | 216 | 305 | 457 | 555
Sales |  |  | (2) |
Settlements | (64) | (39) | (135) | (95)
Calls |  |  |  | (7)
Total | 152 | 266 | 320 | 453
Hybrid And Redeemable Preferred 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 | 3 | 9 | 4 | 12
Settlements | (87) | (1) | (90) | (202)
Total | (84) | 8 | (86) | (190)
Trading Securities [Member] |  |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Issuances |  | 92 |  | 271
Sales | (102) | (88) | (155) | (220)
Settlements | (3) | (152) | (77) | (197)
Total | (105) | (148) | (232) | (146)
Equity Securities [Member] |  |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Issuances | 1 | 26 | 1 | 26
Sales |  |  |  | (8)
Total | 1 | 26 | 1 | 18
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 | 34 | 20 | 84 | 38
Settlements |  | 40 | (17) | 40
Total | 34 | 60 | 67 | 78
Indexed Annuity And IUL Contracts [Member] | Other Assets [Member] |  |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |  |
Issuances |  |  | (615) | (228)
Settlements |  |  | 165 | 144
Total |  |  | $ (450) | $ (84)
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 | (316) | (100) |  |
Settlements | 160 | 18 |  |
Total | $ (156) | $ (82) |  |

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