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Shareholders' Equity And Dividend Restrictions (Change In AOCI Includes Changes In Unrealized Gains And Losses On Investments And Pension Obligations) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accumulated Other Comprehensive Income, Before Tax |  |  |
Pension obligations OCI | $ (6) | $ 9 | $ 68
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | (614) |  |
AOCI, balance at the end of the period | (435) | (614) |
Accumulated Net Unrealized Investment Gain (Loss) |  |  |
Accumulated Other Comprehensive Income, Before Tax |  |  |
AOCI, balance at the beginning of the period | (847) | 792 | 1,026
OCI before investment gains and losses, net, recognized in net income | 255 | (1,642) | (204)
Investment gains and losses, net, recognized in net income | 22 | 3 | (30)
OCI | 277 | (1,639) | (234)
AOCI, balance at the end of the period | (570) | (847) | 792
Accumulated Other Comprehensive Income, Income Tax |  |  |
AOCI, balance at the beginning of the period | (182) | 165 | 215
OCI before investment gains and losses, net, recognized in net income | 55 | (347) | (44)
Investment gains and losses, net, recognized in net income | 4 | 0 | (6)
OCI | 59 | (347) | (50)
AOCI, balance at the end of the period | (123) | (182) | 165
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | (665) | 627 | 811
OCI before investment gains and losses, net, recognized in net income | 200 | (1,295) | (160)
Investment gains and losses, net, recognized in net income | 18 | 3 | (24)
OCI | 218 | (1,292) | (184)
AOCI, balance at the end of the period | (447) | (665) | 627
Accumulated Defined Benefit Plans Adjustment |  |  |
Accumulated Other Comprehensive Income, Before Tax |  |  |
AOCI, balance at the beginning of the period | 36 | 27 | (41)
OCI before investment gains and losses, net, recognized in net income | 2 | 12 | 62
Investment gains and losses, net, recognized in net income | (8) | (3) | 6
OCI | (6) | 9 | 68
AOCI, balance at the end of the period | 30 | 36 | 27
Accumulated Other Comprehensive Income, Income Tax |  |  |
AOCI, balance at the beginning of the period | 9 | 7 | (7)
OCI before investment gains and losses, net, recognized in net income | 1 | 2 | 12
Investment gains and losses, net, recognized in net income | (2) | 0 | 2
OCI | (1) | 2 | 14
AOCI, balance at the end of the period | 8 | 9 | 7
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | 27 | 20 | (34)
OCI before investment gains and losses, net, recognized in net income | 1 | 10 | 50
Investment gains and losses, net, recognized in net income | (6) | (3) | 4
OCI | (5) | 7 | 54
AOCI, balance at the end of the period | 22 | 27 | 20
Accumulated Net Unrealized Gain (Loss) on Life Policy Reserves, Reinsurance Recoverable And Other |  |  |
Accumulated Other Comprehensive Income, Before Tax |  |  |
AOCI, balance at the beginning of the period | 29 | (444) | (560)
OCI before investment gains and losses, net, recognized in net income | (42) | 473 | 116
Investment gains and losses, net, recognized in net income | 0 | 0 | 0
OCI | (42) | 473 | 116
AOCI, balance at the end of the period | (13) | 29 | (444)
Accumulated Other Comprehensive Income, Income Tax |  |  |
AOCI, balance at the beginning of the period | 5 | (94) | (118)
OCI before investment gains and losses, net, recognized in net income | (8) | 99 | 24
Investment gains and losses, net, recognized in net income | 0 | 0 | 0
OCI | (8) | 99 | 24
AOCI, balance at the end of the period | (3) | 5 | (94)
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | 24 | (350) | (442)
OCI before investment gains and losses, net, recognized in net income | (34) | 374 | 92
Investment gains and losses, net, recognized in net income | 0 | 0 | 0
OCI | (34) | 374 | 92
AOCI, balance at the end of the period | (10) | 24 | (350)
Accumulated Net Unrealized Gain (Loss) on Life Policy Reserves, Reinsurance Recoverable And Other | Previously Reported |  |  |
Accumulated Other Comprehensive Income, Before Tax |  |  |
AOCI, balance at the beginning of the period | 29 | (444) | (10)
AOCI, balance at the end of the period |  | 29 | (444)
Accumulated Other Comprehensive Income, Income Tax |  |  |
AOCI, balance at the beginning of the period | 5 | (94) | (2)
AOCI, balance at the end of the period |  | 5 | (94)
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | 24 | (350) | (8)
AOCI, balance at the end of the period |  | 24 | (350)
Accumulated Net Unrealized Gain (Loss) on Life Policy Reserves, Reinsurance Recoverable And Other | Adjustment to purchase price |  |  |
Accumulated Other Comprehensive Income, Before Tax |  |  |
AOCI, balance at the beginning of the period | 0 | 0 | (550)
AOCI, balance at the end of the period |  | 0 | 0
Accumulated Other Comprehensive Income, Income Tax |  |  |
AOCI, balance at the beginning of the period | 0 | 0 | (116)
AOCI, balance at the end of the period |  | 0 | 0
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | 0 | 0 | (434)
AOCI, balance at the end of the period |  | 0 | 0
Accumulated Other Comprehensive Income (Loss) |  |  |
Accumulated Other Comprehensive Income, Before Tax |  |  |
AOCI, balance at the beginning of the period | (782) | 375 | 425
Investments OCI | 277 | (1,639) | (234)
Pension obligations OCI | (6) | 9 | 68
Life policy reserves, reinsurance recoverable and other OCI | (42) | 473 | 116
Total OCI | 229 | (1,157) | (50)
AOCI, balance at the end of the period | (553) | (782) | 375
Accumulated Other Comprehensive Income, Income Tax |  |  |
AOCI, balance at the beginning of the period | (168) | 78 | 90
Investments OCI | 59 | (347) | (50)
Pension obligations OCI | (1) | 2 | 14
Life policy reserves, reinsurance recoverable and other OCI | (8) | 99 | 24
Total OCI | 50 | (246) | (12)
AOCI, balance at the end of the period | (118) | (168) | 78
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | (614) | 297 | 335
Investments OCI | 218 | (1,292) | (184)
Pension obligations OCI | (5) | 7 | 54
Life policy reserves, reinsurance recoverable and other OCI | (34) | 374 | 92
Total OCI | 179 | (911) | (38)
AOCI, balance at the end of the period | (435) | (614) | 297
Accumulated Other Comprehensive Income (Loss) | Previously Reported |  |  |
Accumulated Other Comprehensive Income, Before Tax |  |  |
AOCI, balance at the beginning of the period | (782) | 375 | 975
AOCI, balance at the end of the period |  | (782) | 375
Accumulated Other Comprehensive Income, Income Tax |  |  |
AOCI, balance at the beginning of the period | (168) | 78 | 206
AOCI, balance at the end of the period |  | (168) | 78
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | (614) | 297 | 769
AOCI, balance at the end of the period |  | (614) | 297
Accumulated Other Comprehensive Income (Loss) | Adjustment to purchase price |  |  |
Accumulated Other Comprehensive Income, Before Tax |  |  |
AOCI, balance at the beginning of the period | 0 | 0 | (550)
AOCI, balance at the end of the period |  | 0 | 0
Accumulated Other Comprehensive Income, Income Tax |  |  |
AOCI, balance at the beginning of the period | 0 | 0 | (116)
AOCI, balance at the end of the period |  | 0 | 0
Accumulated Other Comprehensive Income, Net of Tax |  |  |
AOCI, balance at the beginning of the period | $ 0 | 0 | (434)
AOCI, balance at the end of the period |  | $ 0 | $ 0

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