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Policyholder Account Balances - Summary of Balances and Changes in Policyholder Account Balances (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Policyholder Account Balance [Roll Forward] |  |  |
Balance as of beginning-of-year | $ 120,737 |  |
Interest credited | 3,443 | $ 3,248 | $ 2,877
Balance as of end-of-year | 126,197 | 120,737 |
Variable Annuities |  |  |
Policyholder Account Balance [Roll Forward] |  |  |
Balance as of beginning-of-year | 29,141 | 22,184 |
Gross deposits | 4,756 | 4,709 |
Withdrawals | (1,321) | (742) |
Policyholder assessments | (1) | (1) |
Net transfers from (to) separate account | (477) | (427) |
Interest credited | 695 | 548 |
Change in fair value of embedded derivative instrument and other | 2,474 | 2,870 |
Balance as of end-of-year | $ 35,267 | $ 29,141 | 22,184
Weighted-average crediting rate | 2.10% | 2.10% |
Net amount at risk | $ 1,962 | $ 3,031 |
Cash surrender value | 34,018 | 27,975 |
Fixed Annuities |  |  |
Policyholder Account Balance [Roll Forward] |  |  |
Balance as of beginning-of-year | 25,355 | 23,365 |
Gross deposits | 4,226 | 5,130 |
Withdrawals | (4,828) | (3,929) |
Policyholder assessments | (61) | (56) |
Net transfers from (to) separate account | 0 | 0 |
Interest credited | 802 | 643 |
Change in fair value of embedded derivative instrument and other | 469 | 202 |
Balance as of end-of-year | $ 25,963 | $ 25,355 | 23,365
Weighted-average crediting rate | 3.10% | 2.70% |
Net amount at risk | $ 240 | $ 203 |
Cash surrender value | 24,867 | 24,349 |
UL and Other |  |  |
Policyholder Account Balance [Roll Forward] |  |  |
Balance as of beginning-of-year | 37,180 | 37,694 |
Gross deposits | 3,619 | 3,755 |
Withdrawals | (1,464) | (1,454) |
Policyholder assessments | (4,522) | (4,512) |
Net transfers from (to) separate account | 196 | 97 |
Interest credited | 1,474 | 1,479 |
Change in fair value of embedded derivative instrument and other | 116 | 121 |
Balance as of end-of-year | $ 36,599 | $ 37,180 | 37,694
Weighted-average crediting rate | 4.00% | 4.00% |
Net amount at risk | $ 297,555 | $ 302,712 |
Cash surrender value | 32,999 | 33,629 |
Retirement Plan Services |  |  |
Policyholder Account Balance [Roll Forward] |  |  |
Balance as of beginning-of-year | 23,784 | 25,138 |
Gross deposits | 3,407 | 2,776 |
Withdrawals | (4,495) | (4,494) |
Policyholder assessments | (14) | (14) |
Net transfers from (to) separate account | 251 | (295) |
Interest credited | 686 | 673 |
Change in fair value of embedded derivative instrument and other | 0 | 0 |
Balance as of end-of-year | $ 23,619 | $ 23,784 | $ 25,138
Weighted-average crediting rate | 2.90% | 2.70% |
Net amount at risk | $ 3 | $ 4 |
Cash surrender value | $ 23,586 | $ 23,765 |

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