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Accumulated Other Comprehensive Income | 9 Months Ended
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Sep. 30, 2025
Accumulated Other Comprehensive Income [Abstract] |
Accumulated Other Comprehensive Income | Accumulated Other Comprehensive Income Accumulated other comprehensive income (AOCI) includes changes in unrealized gains and losses on investments, changes in pension obligations and changes in life policy reserves, reinsurance recoverable and other as follows:
(Dollars in millions) |  | Three months ended September 30, |  |  |  |
|  | 2025 |  |  | 2024 |  |  |  |  |  |  |
|  | Before tax |  | Income tax |  | Net |  |  | Before tax |  | Income tax |  | Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, beginning of period |  | $ | (458) |  |  | $ | (99) |  |  | $ | (359) |  |  |  | $ | (700) |  |  | $ | (151) |  |  | $ | (549) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OCI before investment gains and losses, net, recognized in net income |  | 242 |  |  | 51 |  |  | 191 |  |  |  | 411 |  |  | 88 |  |  | 323 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment gains and losses, net, recognized in net income |  | (1) |  |  | — |  |  | (1) |  |  |  | 86 |  |  | 18 |  |  | 68 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OCI |  | 241 |  |  | 51 |  |  | 190 |  |  |  | 497 |  |  | 106 |  |  | 391 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, end of period |  | $ | (217) |  |  | $ | (48) |  |  | $ | (169) |  |  |  | $ | (203) |  |  | $ | (45) |  |  | $ | (158) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, beginning of period |  | $ | 73 |  |  | $ | 17 |  |  | $ | 56 |  |  |  | $ | 31 |  |  | $ | 8 |  |  | $ | 23 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OCI excluding amortization recognized in net income |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization recognized in net income |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OCI |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, end of period |  | $ | 73 |  |  | $ | 17 |  |  | $ | 56 |  |  |  | $ | 31 |  |  | $ | 8 |  |  | $ | 23 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Life policy reserves, reinsurance recoverable and other: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, beginning of period |  | $ | 69 |  |  | $ | 15 |  |  | $ | 54 |  |  |  | $ | 71 |  |  | $ | 15 |  |  | $ | 56 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OCI before investment gains and losses, net, recognized in net income |  | (32) |  |  | (7) |  |  | (25) |  |  |  | (91) |  |  | (20) |  |  | (71) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment gains and losses, net, recognized in net income |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
OCI |  | (32) |  |  | (7) |  |  | (25) |  |  |  | (91) |  |  | (20) |  |  | (71) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, end of period |  | $ | 37 |  |  | $ | 8 |  |  | $ | 29 |  |  |  | $ | (20) |  |  | $ | (5) |  |  | $ | (15) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of AOCI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, beginning of period |  | $ | (316) |  |  | $ | (67) |  |  | $ | (249) |  |  |  | $ | (598) |  |  | $ | (128) |  |  | $ | (470) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments OCI |  | 241 |  |  | 51 |  |  | 190 |  |  |  | 497 |  |  | 106 |  |  | 391 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension obligations OCI |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Life policy reserves, reinsurance recoverable and other OCI |  | (32) |  |  | (7) |  |  | (25) |  |  |  | (91) |  |  | (20) |  |  | (71) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total OCI |  | 209 |  |  | 44 |  |  | 165 |  |  |  | 406 |  |  | 86 |  |  | 320 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, end of period |  | $ | (107) |  |  | $ | (23) |  |  | $ | (84) |  |  |  | $ | (192) |  |  | $ | (42) |  |  | $ | (150) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Dollars in millions) |  | Nine months ended September 30,
|  | 2025 |  |  | 2024
|  | Before tax |  | Income tax |  | Net |  |  | Before tax |  | Income tax |  | Net
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, beginning of period |  | $ | (553) |  |  | $ | (119) |  |  | $ | (434) |  |  |  | $ | (570) |  |  | $ | (123) |  |  | $ | (447) |
OCI before investment gains and losses, net, recognized in net income |  | 323 |  |  | 68 |  |  | 255 |  |  |  | 253 |  |  | 54 |  |  | 199 |
Investment gains and losses, net, recognized in net income |  | 13 |  |  | 3 |  |  | 10 |  |  |  | 114 |  |  | 24 |  |  | 90 |
OCI |  | 336 |  |  | 71 |  |  | 265 |  |  |  | 367 |  |  | 78 |  |  | 289 |
AOCI, end of period |  | $ | (217) |  |  | $ | (48) |  |  | $ | (169) |  |  |  | $ | (203) |  |  | $ | (45) |  |  | $ | (158) |
Pension obligations: |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, beginning of period |  | $ | 75 |  |  | $ | 17 |  |  | $ | 58 |  |  |  | $ | 30 |  |  | $ | 8 |  |  | $ | 22 |
OCI excluding amortization recognized in net income |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |
Amortization recognized in net income |  | (2) |  |  | — |  |  | (2) |  |  |  | 1 |  |  | — |  |  | 1 |
OCI |  | (2) |  |  | — |  |  | (2) |  |  |  | 1 |  |  | — |  |  | 1 |
AOCI, end of period |  | $ | 73 |  |  | $ | 17 |  |  | $ | 56 |  |  |  | $ | 31 |  |  | $ | 8 |  |  | $ | 23 |
Life policy reserves, reinsurance recoverable and other: |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, beginning of period |  | $ | 85 |  |  | $ | 18 |  |  | $ | 67 |  |  |  | $ | (13) |  |  | $ | (3) |  |  | $ | (10) |
OCI before investment gains and losses, net, recognized in net income |  | (48) |  |  | (10) |  |  | (38) |  |  |  | (7) |  |  | (2) |  |  | (5) |
Investment gains and losses, net, recognized in net income |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |
OCI |  | (48) |  |  | (10) |  |  | (38) |  |  |  | (7) |  |  | (2) |  |  | (5) |
AOCI, end of period |  | $ | 37 |  |  | $ | 8 |  |  | $ | 29 |  |  |  | $ | (20) |  |  | $ | (5) |  |  | $ | (15) |
Summary of AOCI: |  |  |  |  |  |  |  |  |  |  |  |  |
AOCI, beginning of period |  | $ | (393) |  |  | $ | (84) |  |  | $ | (309) |  |  |  | $ | (553) |  |  | $ | (118) |  |  | $ | (435) |
Investments OCI |  | 336 |  |  | 71 |  |  | 265 |  |  |  | 367 |  |  | 78 |  |  | 289 |
Pension obligations OCI |  | (2) |  |  | — |  |  | (2) |  |  |  | 1 |  |  | — |  |  | 1 |
Life policy reserves, reinsurance recoverable and other OCI |  | (48) |  |  | (10) |  |  | (38) |  |  |  | (7) |  |  | (2) |  |  | (5) |
Total OCI |  | 286 |  |  | 61 |  |  | 225 |  |  |  | 361 |  |  | 76 |  |  | 285 |
AOCI, end of period |  | $ | (107) |  |  | $ | (23) |  |  | $ | (84) |  |  |  | $ | (192) |  |  | $ | (42) |  |  | $ | (150) |
Investment gains and losses, net, and other investment gains and losses, net, are recorded in the investment gains and losses, net, line item in the condensed consolidated statements of income. Amortization of pension obligations is recorded in the insurance losses and contract holders' benefits and underwriting, acquisition and insurance expenses line items in the condensed consolidated statements of income.

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- Definition Accumulated Other Comprehensive Income [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/220/tableOfContent + Details
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