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Contractholder Funds - Schedule of Balances and Changes in Contractholder Funds (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Policyholder Account Balance |  |  |  |  |
Balance, beginning of year |  |  | $ 56,404 |  |
Balance, end of period | $ 59,813 |  | 59,813 |  | $ 56,404
Embedded derivative adjustment | 4 | $ 4 | 4 | $ 11 |
Gross liability, end of period | 59,813 |  | 59,813 |  | 56,404
Reinsurance recoverable, net of allowance for expected credit losses | 15,781 |  | 15,781 |  | 13,380
Indexed annuities |  |  |  |  |
Policyholder Account Balance |  |  |  |  |
Balance, beginning of year |  |  | 30,235 | 27,164 | 27,164
Issuances |  |  | 3,221 |  | 6,649
Premiums received |  |  | 1,366 |  | 120
Policy charges |  |  | (1,455) |  | (195)
Surrenders and withdrawals |  |  | (1,824) |  | (3,832)
Benefit payments |  |  | (274) |  | (495)
Interest credited |  |  | 351 |  | 821
Other |  |  | 2 |  | 3
Balance, end of period | 31,622 |  | 31,622 |  | 30,235
Issuances |  |  | 3,221 |  | 6,649
Premiums received |  |  | 1,366 |  | 120
Policy charges |  |  | (1,455) |  | (195)
Surrenders and withdrawals |  |  | (1,824) |  | (3,832)
Benefit payments |  |  | (274) |  | (495)
Interest credited |  |  | 351 |  | 821
Other |  |  | 2 |  | 3
Reconciling items |  |  | 220 |  |
Embedded derivative adjustment |  |  |  |  | 219
Gross liability, end of period | 31,842 |  | 31,842 |  | 30,454
Reinsurance recoverable, net of allowance for expected credit losses | 1,674 |  | 1,674 |  | 861
Net liability, after reinsurance | $ 30,168 |  | $ 30,168 |  | $ 29,593
Weighted-average crediting rate | 2.30% |  | 2.30% |  | 2.90%
Cash surrender value | $ 29,436 |  | $ 29,436 |  | $ 27,865
Fixed rate annuities |  |  |  |  |
Policyholder Account Balance |  |  |  |  |
Balance, beginning of year |  |  | 17,442 | 13,443 | 13,443
Issuances |  |  | 2,471 |  | 5,125
Premiums received |  |  | 0 |  | 1
Policy charges |  |  | 0 |  | 0
Surrenders and withdrawals |  |  | (878) |  | (1,479)
Benefit payments |  |  | (175) |  | (315)
Interest credited |  |  | 410 |  | 667
Other |  |  | 0 |  | 0
Balance, end of period | 19,270 |  | 19,270 |  | 17,442
Issuances |  |  | 2,471 |  | 5,125
Premiums received |  |  | 0 |  | 1
Policy charges |  |  | 0 |  | 0
Surrenders and withdrawals |  |  | (878) |  | (1,479)
Benefit payments |  |  | (175) |  | (315)
Interest credited |  |  | 410 |  | 667
Other |  |  | 0 |  | 0
Reconciling items |  |  | 1 |  |
Embedded derivative adjustment |  |  |  |  | 0
Gross liability, end of period | 19,271 |  | 19,271 |  | 17,442
Reinsurance recoverable, net of allowance for expected credit losses | 12,611 |  | 12,611 |  | 11,009
Net liability, after reinsurance | $ 6,660 |  | $ 6,660 |  | $ 6,433
Weighted-average crediting rate | 4.57% |  | 4.57% |  | 4.42%
Cash surrender value | $ 18,008 |  | $ 18,008 |  | $ 16,266
Universal Life |  |  |  |  |
Policyholder Account Balance |  |  |  |  |
Balance, beginning of year |  |  | 2,817 | 2,391 | 2,391
Issuances |  |  | 111 |  | 208
Premiums received |  |  | 287 |  | 495
Policy charges |  |  | (183) |  | (315)
Surrenders and withdrawals |  |  | (61) |  | (101)
Benefit payments |  |  | (11) |  | (18)
Interest credited |  |  | 84 |  | 157
Other |  |  | 0 |  | 0
Balance, end of period | 3,044 |  | 3,044 |  | 2,817
Issuances |  |  | 111 |  | 208
Premiums received |  |  | 287 |  | 495
Policy charges |  |  | (183) |  | (315)
Surrenders and withdrawals |  |  | (61) |  | (101)
Benefit payments |  |  | (11) |  | (18)
Interest credited |  |  | 84 |  | 157
Other |  |  | 0 |  | 0
Reconciling items |  |  | 84 |  |
Embedded derivative adjustment |  |  |  |  | 79
Gross liability, end of period | 3,128 |  | 3,128 |  | 2,896
Reinsurance recoverable, net of allowance for expected credit losses | 874 |  | 874 |  | 877
Net liability, after reinsurance | $ 2,254 |  | $ 2,254 |  | $ 2,019
Weighted-average crediting rate | 5.94% |  | 5.94% |  | 6.20%
Net amount at risk | $ 72,599 |  | $ 72,599 |  | $ 74,279
Cash surrender value | 2,344 |  | 2,344 |  | 2,177
FABN |  |  |  |  |
Policyholder Account Balance |  |  |  |  |
Balance, beginning of year |  |  | 2,463 | 2,613 | 2,613
Issuances |  |  | 350 |  | 600
Premiums received |  |  | 0 |  | 0
Policy charges |  |  | 0 |  | 0
Surrenders and withdrawals |  |  | 0 |  | 0
Benefit payments |  |  | (41) |  | (820)
Interest credited |  |  | 50 |  | 71
Other |  |  | 0 |  | (1)
Balance, end of period | 2,822 |  | 2,822 |  | 2,463
Issuances |  |  | 350 |  | 600
Premiums received |  |  | 0 |  | 0
Policy charges |  |  | 0 |  | 0
Surrenders and withdrawals |  |  | 0 |  | 0
Benefit payments |  |  | (41) |  | (820)
Interest credited |  |  | 50 |  | 71
Other |  |  | 0 |  | (1)
Reconciling items |  |  | 13 |  |
Embedded derivative adjustment |  |  |  |  | 0
Gross liability, end of period | 2,835 |  | 2,835 |  | 2,463
Reinsurance recoverable, net of allowance for expected credit losses | 0 |  | 0 |  | 0
Net liability, after reinsurance | 2,835 |  | 2,835 |  | 2,463
FHLB |  |  |  |  |
Policyholder Account Balance |  |  |  |  |
Balance, beginning of year |  |  | 2,852 | $ 2,539 | 2,539
Issuances |  |  | 1,236 |  | 1,804
Premiums received |  |  | 0 |  | 0
Policy charges |  |  | 0 |  | 0
Surrenders and withdrawals |  |  | 0 |  | 0
Benefit payments |  |  | (1,691) |  | (1,606)
Interest credited |  |  | 52 |  | 117
Other |  |  | 0 |  | (2)
Balance, end of period | 2,449 |  | 2,449 |  | 2,852
Issuances |  |  | 1,236 |  | 1,804
Premiums received |  |  | 0 |  | 0
Policy charges |  |  | 0 |  | 0
Surrenders and withdrawals |  |  | 0 |  | 0
Benefit payments |  |  | (1,691) |  | (1,606)
Interest credited |  |  | 52 |  | 117
Other |  |  | 0 |  | (2)
Reconciling items |  |  | 0 |  |
Embedded derivative adjustment |  |  |  |  | 0
Gross liability, end of period | 2,449 |  | 2,449 |  | 2,852
Reinsurance recoverable, net of allowance for expected credit losses | 0 |  | 0 |  | 0
Net liability, after reinsurance | $ 2,449 |  | $ 2,449 |  | $ 2,852

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