Changes in Policyholders' Account Balances (Details) - Investment contract reserves: - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Deferred Fixed Annuity | ||||
| Policyholder Account Balance [Roll Forward] | ||||
| Balance, beginning of period | $ 540 | $ 575 | $ 554 | $ 595 |
| Premiums received | 5 | 7 | 19 | 19 |
| Policy charges | 0 | 0 | 0 | 0 |
| Surrenders and withdrawals | (13) | (15) | (43) | (50) |
| Benefit payments | (3) | (7) | (11) | (15) |
| Interest credited | 5 | 5 | 15 | 16 |
| Balance, end of period | $ 534 | $ 565 | $ 534 | $ 565 |
| Weighted average crediting rate | 3.94% | 3.71% | 3.94% | 3.71% |
| Net amount at risk | $ 0 | $ 0 | $ 0 | $ 0 |
| Cash surrender value | 527 | 559 | 527 | 559 |
| Universal life | ||||
| Policyholder Account Balance [Roll Forward] | ||||
| Balance, beginning of period | 447 | 454 | 451 | 456 |
| Premiums received | 8 | 8 | 26 | 27 |
| Policy charges | (10) | (10) | (30) | (30) |
| Surrenders and withdrawals | (2) | (3) | (11) | (9) |
| Benefit payments | (2) | (1) | (5) | (6) |
| Interest credited | 5 | 5 | 15 | 15 |
| Balance, end of period | $ 446 | $ 453 | $ 446 | $ 453 |
| Weighted average crediting rate | 4.45% | 4.43% | 4.45% | 4.43% |
| Net amount at risk | $ 3,582 | $ 3,719 | $ 3,582 | $ 3,719 |
| Cash surrender value | $ 422 | $ 426 | $ 422 | $ 426 |
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- Definition Amount of cash to be paid to policyholder upon termination and surrender of long-duration contract issued by insurance entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest expense for allocation to policyholder account balance. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cash outflow to policyholder account balance from benefit payment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of guaranteed benefit in excess of current account balance of policyholder account balance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in liability for policyholder account balance from policy charge. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cash inflow to policyholder account balance from premium received. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of decrease in liability for policyholder account balance from contract redemption and withdrawal of funds. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Weighted-average crediting rate for liability for policyholder account balance, calculated at a point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount due to policyholder. Includes, but is not limited to, unpaid policy dividend, retrospective refund, and undistributed earnings on participating business. Excludes future policy benefit and claim expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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