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Shareholders' Equity And Dividend Restrictions (Tables) | 12 Months Ended
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Dec. 31, 2023
Shareholders Equity And Dividend Restrictions [Abstract] |
Change In AOCI Includes Changes In Unrealized Gains And Losses On Investments And Pension Obligations | The changes from the beginning of year to the end of year are the result of changes to other comprehensive income or loss (OCI).
(Dollars in millions) |  | 2023 |  |  | 2022 |  |  | 2021
|  | Before tax |  | Income tax |  | Net |  |  | Before tax |  | Income tax |  | Net |  |  | Before tax |  | Income tax |  | Net
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, January 1 |  | $ | (847) |  |  | $ | (182) |  |  | $ | (665) |  |  |  | $ | 792 |  |  | $ | 165 |  |  | $ | 627 |  |  |  | $ | 1,026 |  |  | $ | 215 |  |  | $ | 811 |
OCI before investment gains and losses, net, recognized in net income |  | 255 |  |  | 55 |  |  | 200 |  |  |  | (1,642) |  |  | (347) |  |  | (1,295) |  |  |  | (204) |  |  | (44) |  |  | (160) |
Investment gains and losses, net, recognized in net income |  | 22 |  |  | 4 |  |  | 18 |  |  |  | 3 |  |  | — |  |  | 3 |  |  |  | (30) |  |  | (6) |  |  | (24) |
OCI |  | 277 |  |  | 59 |  |  | 218 |  |  |  | (1,639) |  |  | (347) |  |  | (1,292) |  |  |  | (234) |  |  | (50) |  |  | (184) |
AOCI, December 31 |  | $ | (570) |  |  | $ | (123) |  |  | $ | (447) |  |  |  | $ | (847) |  |  | $ | (182) |  |  | $ | (665) |  |  |  | $ | 792 |  |  | $ | 165 |  |  | $ | 627 |
Pension obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, January 1 |  | $ | 36 |  |  | $ | 9 |  |  | $ | 27 |  |  |  | $ | 27 |  |  | $ | 7 |  |  | $ | 20 |  |  |  | $ | (41) |  |  | $ | (7) |  |  | $ | (34) |
OCI excluding amortization recognized in net income |  | 2 |  |  | 1 |  |  | 1 |  |  |  | 12 |  |  | 2 |  |  | 10 |  |  |  | 62 |  |  | 12 |  |  | 50 |
Amortization recognized in net income |  | (8) |  |  | (2) |  |  | (6) |  |  |  | (3) |  |  | — |  |  | (3) |  |  |  | 6 |  |  | 2 |  |  | 4 |
OCI |  | (6) |  |  | (1) |  |  | (5) |  |  |  | 9 |  |  | 2 |  |  | 7 |  |  |  | 68 |  |  | 14 |  |  | 54 |
AOCI, December 31 |  | $ | 30 |  |  | $ | 8 |  |  | $ | 22 |  |  |  | $ | 36 |  |  | $ | 9 |  |  | $ | 27 |  |  |  | $ | 27 |  |  | $ | 7 |  |  | $ | 20 |
Life policy reserves, reinsurance recoverable and other: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, January 1 |  | $ | 29 |  |  | $ | 5 |  |  | $ | 24 |  |  |  | $ | (444) |  |  | $ | (94) |  |  | $ | (350) |  |  |  | $ | (10) |  |  | $ | (2) |  |  | $ | (8) |
Cumulative effect of change in accounting for long duration insurance contracts |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  | (550) |  |  | (116) |  |  | (434) |
Adjusted AOCI, January 1 |  | 29 |  |  | 5 |  |  | 24 |  |  |  | (444) |  |  | (94) |  |  | (350) |  |  |  | (560) |  |  | (118) |  |  | (442) |
OCI before investment gains and losses, net, recognized in net income |  | (42) |  |  | (8) |  |  | (34) |  |  |  | 473 |  |  | 99 |  |  | 374 |  |  |  | 116 |  |  | 24 |  |  | 92 |
Investment gains and losses, net, recognized in net income |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |
OCI |  | (42) |  |  | (8) |  |  | (34) |  |  |  | 473 |  |  | 99 |  |  | 374 |  |  |  | 116 |  |  | 24 |  |  | 92 |
AOCI, December 31 |  | $ | (13) |  |  | $ | (3) |  |  | $ | (10) |  |  |  | $ | 29 |  |  | $ | 5 |  |  | $ | 24 |  |  |  | $ | (444) |  |  | $ | (94) |  |  | $ | (350) |
Summary of AOCI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, January 1 |  | $ | (782) |  |  | $ | (168) |  |  | $ | (614) |  |  |  | $ | 375 |  |  | $ | 78 |  |  | $ | 297 |  |  |  | $ | 975 |  |  | $ | 206 |  |  | $ | 769 |
Cumulative effect of change in accounting for long duration insurance contracts |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  | (550) |  |  | (116) |  |  | (434) |
Adjusted AOCI, January 1 |  | (782) |  |  | (168) |  |  | (614) |  |  |  | 375 |  |  | 78 |  |  | 297 |  |  |  | 425 |  |  | 90 |  |  | 335 |
Investments OCI |  | 277 |  |  | 59 |  |  | 218 |  |  |  | (1,639) |  |  | (347) |  |  | (1,292) |  |  |  | (234) |  |  | (50) |  |  | (184) |
Pension obligations OCI |  | (6) |  |  | (1) |  |  | (5) |  |  |  | 9 |  |  | 2 |  |  | 7 |  |  |  | 68 |  |  | 14 |  |  | 54 |
Life policy reserves, reinsurance recoverable and other OCI |  | (42) |  |  | (8) |  |  | (34) |  |  |  | 473 |  |  | 99 |  |  | 374 |  |  |  | 116 |  |  | 24 |  |  | 92 |
Total OCI |  | 229 |  |  | 50 |  |  | 179 |  |  |  | (1,157) |  |  | (246) |  |  | (911) |  |  |  | (50) |  |  | (12) |  |  | (38) |
AOCI, December 31 |  | $ | (553) |  |  | $ | (118) |  |  | $ | (435) |  |  |  | $ | (782) |  |  | $ | (168) |  |  | $ | (614) |  |  |  | $ | 375 |  |  | $ | 78 |  |  | $ | 297 |

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