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Equity (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of period | $ (5,246) | $ (6,106)
OCI before reclassifications | (246) | 972
Deferred income tax benefit (expense) (3) | 51 | (204)
AOCI before reclassifications, net of income tax | (5,441) | (5,338)
Amounts reclassified from AOCI | 34 | 64
Deferred income tax benefit (expense) (3) | (6) | (14)
Amounts reclassified from AOCI, net of income tax | 28 | 50
Balance, end of period | (5,413) | (5,288)
Unrealized Investment Gains (Losses), Net of Related Offsets (1) |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of period | (4,317) | (6,194)
OCI before reclassifications | (820) | 1,414
Deferred income tax benefit (expense) (3) | 171 | (296)
AOCI before reclassifications, net of income tax | (4,966) | (5,076)
Amounts reclassified from AOCI | 36 | 61
Deferred income tax benefit (expense) (3) | (7) | (13)
Amounts reclassified from AOCI, net of income tax | 29 | 48
Balance, end of period | (4,937) | (5,028)
Unrealized Gains (Losses) on Derivatives |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of period | 277 | 504
OCI before reclassifications | 53 | (40)
Deferred income tax benefit (expense) (3) | (11) | 8
AOCI before reclassifications, net of income tax | 319 | 472
Amounts reclassified from AOCI | (3) | 0
Deferred income tax benefit (expense) (3) | 1 | 0
Amounts reclassified from AOCI, net of income tax | (2) | 0
Balance, end of period | 317 | 472
Changes in Nonperformance Risk on Market Risk Benefits |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of period | (1,881) | (1,378)
OCI before reclassifications | 215 | (7)
Deferred income tax benefit (expense) (3) | (45) | 2
AOCI before reclassifications, net of income tax | (1,711) | (1,383)
Amounts reclassified from AOCI | 0 | 0
Deferred income tax benefit (expense) (3) | 0 | 0
Amounts reclassified from AOCI, net of income tax | 0 | 0
Balance, end of period | (1,711) | (1,383)
Changes in Discount Rates on the Liability for Future Policy Benefits |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of period | 720 | 1,020
OCI before reclassifications | 315 | (397)
Deferred income tax benefit (expense) (3) | (66) | 83
AOCI before reclassifications, net of income tax | 969 | 706
Amounts reclassified from AOCI | 0 | 0
Deferred income tax benefit (expense) (3) | 0 | 0
Amounts reclassified from AOCI, net of income tax | 0 | 0
Balance, end of period | 969 | 706
Other (2) |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of period | (45) | (58)
OCI before reclassifications | (9) | 2
Deferred income tax benefit (expense) (3) | 2 | (1)
AOCI before reclassifications, net of income tax | (52) | (57)
Amounts reclassified from AOCI | 1 | 3
Deferred income tax benefit (expense) (3) | 0 | (1)
Amounts reclassified from AOCI, net of income tax | 1 | 2
Balance, end of period | $ (51) | $ (55)

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