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Future Policy Benefits - Disaggregate Rollforwards (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |
Net liability for FPBs | $ 193,646 | $ 196,406 |
Fixed & Immediate Annuities | RIS |  |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |
Balance, beginning of period, at current discount rate at balance sheet date | 0 | 0 | $ 0
Balance, beginning of period, at original discount rate | 0 | 0 | 0
Effect of changes in cash flow assumptions | 0 | 0 | 0
Effect of actual variances from expected experience | (48) | (106) | (94)
Adjusted balance | (48) | (106) | (94)
Issuances | 7,985 | 6,572 | 12,672
Net premiums collected | (7,937) | (6,466) | (12,578)
Ending balance at original discount rate | 0 | 0 | 0
Balance, end of period, at current discount rate at balance sheet date | 0 | 0 | 0
Balance, beginning of period, at current discount rate at balance sheet date | 64,515 | 58,695 | 62,954
Balance, beginning of period, at original discount rate | 64,737 | 61,426 | 50,890
Effect of changes in cash flow assumptions | (195) | (284) | (115)
Effect of actual variances from expected experience | (121) | (270) | (175)
Adjusted balance | 64,421 | 60,872 | 50,600
Issuances | 8,129 | 6,588 | 12,770
Interest accrual | 3,146 | 2,897 | 2,519
Benefit payments | (6,050) | (5,620) | (4,463)
Effect of foreign currency translation | (3) | 0 | 0
Ending balance at original discount rate | 69,643 | 64,737 | 61,426
Effect of changes in discount rate assumptions | (3,022) | (222) | (2,731)
Balance, end of period, at current discount rate at balance sheet date | 66,621 | 64,515 | 58,695
Cumulative amount of fair value hedging adjustments | (359) | (191) | (200)
Net liability for FPBs | 66,262 | 64,324 | 58,495
Less: Reinsurance recoverables (Amount due to reinsurer) | 1,919 | 269 | 0
Net liability for FPBs, net of reinsurance | 64,343 | 64,055 | 58,495
Undiscounted - Expected future benefit payments | 126,735 | 130,878 | 113,932
Discounted - Expected future benefit payments (at current discount rate at balance sheet date) | $ 66,621 | $ 64,515 | $ 58,695
Weighted-average duration of the liability | 8 years | 9 years | 9 years
Weighted -average interest accretion (original locked-in) rate | 4.80% | 4.70% | 4.60%
Weighted-average current discount rate at balance sheet date | 5.60% | 5.10% | 5.50%
Deferred Profit Liability Offset to Changes in Cash Flow Assumptions | $ 62 | $ 211 | $ 128
Deferred Profit Liability Offset to Actual Versus Expected | 35 | 118 | 46
Whole and Term Life & Endowments | Asia |  |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |
Balance, beginning of period, at current discount rate at balance sheet date | 4,561 | 4,682 | 5,986
Balance, beginning of period, at original discount rate | 4,793 | 4,943 | 5,881
Effect of changes in cash flow assumptions | 58 | 11 | 69
Effect of actual variances from expected experience | (98) | (62) | 28
Adjusted balance | 4,753 | 4,892 | 5,978
Issuances | 558 | 730 | 231
Interest accrual | 70 | 59 | 44
Net premiums collected | (604) | (611) | (615)
Effect of foreign currency translation | (491) | (277) | (695)
Ending balance at original discount rate | 4,286 | 4,793 | 4,943
Effect of changes in discount rate assumptions | (288) | (242) | (247)
Effect of foreign currency translation on the effect of changes in discount rate assumptions | 25 | 10 | (14)
Balance, end of period, at current discount rate at balance sheet date | 4,023 | 4,561 | 4,682
Balance, beginning of period, at current discount rate at balance sheet date | 17,435 | 17,463 | 24,453
Balance, beginning of period, at original discount rate | 17,198 | 18,209 | 21,276
Effect of changes in cash flow assumptions | 36 | 58 | 96
Effect of actual variances from expected experience | (135) | (30) | 54
Adjusted balance | 17,099 | 18,237 | 21,426
Issuances | 558 | 729 | 231
Interest accrual | 368 | 370 | 364
Benefit payments | (958) | (1,174) | (1,406)
Effect of foreign currency translation | (1,815) | (964) | (2,406)
Ending balance at original discount rate | 15,252 | 17,198 | 18,209
Effect of changes in discount rate assumptions | 11 | 224 | (475)
Effect of foreign currency translation on the effect of changes in discount rate assumptions | (73) | 13 | (271)
Balance, end of period, at current discount rate at balance sheet date | 15,190 | 17,435 | 17,463
Cumulative impact of flooring the future policyholder benefits reserve | 0 | 0 | 11
Net liability for FPBs | 11,167 | 12,874 | 12,792
Less: Reinsurance recoverables (Amount due to reinsurer) | (2) | (1) | (1)
Net liability for FPBs, net of reinsurance | 11,169 | 12,875 | 12,793
Undiscounted - Expected future gross premiums | 8,678 | 9,331 | 9,369
Undiscounted - Expected future benefit payments | 25,422 | 28,130 | 28,507
Discounted - Expected future gross premiums | 7,316 | 8,067 | 8,086
Discounted - Expected future benefit payments (at current discount rate at balance sheet date) | $ 15,190 | $ 17,435 | $ 17,463
Weighted-average duration of the liability | 17 years | 17 years | 15 years
Weighted -average interest accretion (original locked-in) rate | 2.60% | 2.50% | 2.30%
Weighted-average current discount rate at balance sheet date | 2.80% | 2.60% | 2.70%
Deferred Profit Liability Offset to Changes in Cash Flow Assumptions | $ 28 |  | $ (13)
Accident & health insurance | Asia |  |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |
Balance, beginning of period, at current discount rate at balance sheet date | 19,835 | $ 21,181 | 26,543
Balance, beginning of period, at original discount rate | 21,232 | 22,594 | 25,937
Effect of changes in cash flow assumptions | 439 | 867 | 24
Effect of actual variances from expected experience | (205) | (158) | 297
Adjusted balance | 21,466 | 23,303 | 26,258
Issuances | 1,032 | 1,030 | 1,387
Interest accrual | 223 | 236 | 250
Net premiums collected | (1,843) | (2,016) | (2,160)
Effect of foreign currency translation | (2,058) | (1,321) | (3,141)
Ending balance at original discount rate | 18,820 | 21,232 | 22,594
Effect of changes in discount rate assumptions | (1,772) | (1,449) | (1,341)
Effect of foreign currency translation on the effect of changes in discount rate assumptions | 155 | 52 | (72)
Balance, end of period, at current discount rate at balance sheet date | 17,203 | 19,835 | 21,181
Balance, beginning of period, at current discount rate at balance sheet date | 30,480 | 30,879 | 41,874
Balance, beginning of period, at original discount rate | 36,010 | 37,189 | 41,517
Effect of changes in cash flow assumptions | 439 | 898 | (7)
Effect of actual variances from expected experience | (203) | (180) | 363
Adjusted balance | 36,246 | 37,907 | 41,873
Issuances | 1,030 | 1,028 | 1,387
Interest accrual | 470 | 485 | 498
Benefit payments | (1,268) | (1,279) | (1,613)
Effect of foreign currency translation | (3,640) | (2,131) | (4,956)
Ending balance at original discount rate | 32,838 | 36,010 | 37,189
Effect of changes in discount rate assumptions | (6,890) | (5,793) | (6,291)
Effect of foreign currency translation on the effect of changes in discount rate assumptions | 617 | 263 | (19)
Balance, end of period, at current discount rate at balance sheet date | 26,565 | 30,480 | 30,879
Cumulative impact of flooring the future policyholder benefits reserve | 44 | 67 | 342
Net liability for FPBs | 9,406 | 10,712 | 10,040
Less: Reinsurance recoverables (Amount due to reinsurer) | 142 | 142 | 143
Net liability for FPBs, net of reinsurance | 9,264 | 10,570 | 9,897
Undiscounted - Expected future gross premiums | 36,908 | 41,734 | 43,440
Undiscounted - Expected future benefit payments | 43,016 | 47,046 | 48,147
Discounted - Expected future gross premiums | 29,436 | 34,356 | 36,179
Discounted - Expected future benefit payments (at current discount rate at balance sheet date) | $ 26,565 | $ 30,480 | $ 30,879
Weighted-average duration of the liability | 23 years | 25 years | 17 years
Weighted -average interest accretion (original locked-in) rate | 1.70% | 1.70% | 1.70%
Weighted-average current discount rate at balance sheet date | 2.80% | 2.50% | 2.70%
Deferred Profit Liability Offset to Changes in Cash Flow Assumptions |  | $ (10) | $ 44
Deferred Profit Liability Offset to Actual Versus Expected |  | 4 | (20)
Fixed Annuity | Latin America |  |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |
Balance, beginning of period, at current discount rate at balance sheet date | $ 0 | 0 | 0
Balance, beginning of period, at original discount rate | 0 | 0 | 0
Effect of changes in cash flow assumptions | 0 | 0 | 0
Effect of actual variances from expected experience | 0 | 0 | 1
Adjusted balance | 0 | 0 | 1
Issuances | 1,020 | 1,045 | 714
Interest accrual | 21 | 29 | (3)
Net premiums collected | (1,041) | (1,074) | (712)
Ending balance at original discount rate | 0 | 0 | 0
Balance, end of period, at current discount rate at balance sheet date | 0 | 0 | 0
Balance, beginning of period, at current discount rate at balance sheet date | 9,637 | 9,265 | 7,343
Balance, beginning of period, at original discount rate | 9,249 | 8,240 | 6,851
Effect of changes in cash flow assumptions | (4) | (5) | (8)
Effect of actual variances from expected experience | (2) | (31) | (32)
Adjusted balance | 9,243 | 8,204 | 6,811
Issuances | 1,065 | 1,153 | 757
Interest accrual | 339 | 341 | 286
Benefit payments | (701) | (671) | (560)
Inflation adjustment | 391 | 415 | 896
Effect of foreign currency translation | (1,204) | (193) | 50
Ending balance at original discount rate | 9,133 | 9,249 | 8,240
Effect of changes in discount rate assumptions | 536 | 391 | 1,026
Effect of foreign currency translation on the effect of changes in discount rate assumptions | (69) | (3) | (1)
Balance, end of period, at current discount rate at balance sheet date | 9,600 | 9,637 | 9,265
Net liability for FPBs | 9,600 | 9,637 | 9,265
Undiscounted - Expected future benefit payments | 13,660 | 13,994 | 12,675
Discounted - Expected future benefit payments (at current discount rate at balance sheet date) | $ 9,600 | $ 9,637 | $ 9,265
Weighted-average duration of the liability | 11 years | 11 years | 11 years
Weighted -average interest accretion (original locked-in) rate | 3.50% | 3.60% | 3.90%
Weighted-average current discount rate at balance sheet date | 3.10% | 3.30% | 2.70%
Deferred Profit Liability Offset to Changes in Cash Flow Assumptions | $ 3 | $ 4 | $ 7
Deferred Profit Liability Offset to Actual Versus Expected |  |  | 20
Long-term Care | MetLife Holdings |  |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |
Balance, beginning of period, at current discount rate at balance sheet date | 5,687 | 5,775 | 7,058
Balance, beginning of period, at original discount rate | 5,566 | 5,807 | 5,699
Effect of changes in cash flow assumptions | 212 | (152) | 272
Effect of actual variances from expected experience | 74 | 199 | 120
Adjusted balance | 5,852 | 5,854 | 6,091
Interest accrual | 285 | 294 | 298
Net premiums collected | (569) | (582) | (582)
Ending balance at original discount rate | 5,568 | 5,566 | 5,807
Effect of changes in discount rate assumptions | (93) | 121 | (32)
Balance, end of period, at current discount rate at balance sheet date | 5,475 | 5,687 | 5,775
Balance, beginning of period, at current discount rate at balance sheet date | 20,927 | 19,619 | 27,627
Balance, beginning of period, at original discount rate | 20,494 | 20,165 | 19,406
Effect of changes in cash flow assumptions | 205 | (190) | 301
Effect of actual variances from expected experience | 84 | 223 | 115
Adjusted balance | 20,783 | 20,198 | 19,822
Interest accrual | 1,089 | 1,070 | 1,043
Benefit payments | (848) | (774) | (700)
Ending balance at original discount rate | 21,024 | 20,494 | 20,165
Effect of changes in discount rate assumptions | (1,012) | 433 | (546)
Balance, end of period, at current discount rate at balance sheet date | 20,012 | 20,927 | 19,619
Other adjustments | 0 | 0 | 1
Net liability for FPBs | 14,537 | 15,240 | 13,845
Undiscounted - Expected future gross premiums | 10,644 | 10,603 | 11,201
Undiscounted - Expected future benefit payments | 44,981 | 45,016 | 45,872
Discounted - Expected future gross premiums | 6,966 | 7,139 | 7,200
Discounted - Expected future benefit payments (at current discount rate at balance sheet date) | $ 20,012 | $ 20,927 | $ 19,619
Weighted-average duration of the liability | 14 years | 15 years | 15 years
Weighted -average interest accretion (original locked-in) rate | 5.40% | 5.40% | 5.50%
Weighted-average current discount rate at balance sheet date | 5.80% | 5.20% | 5.60%

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