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Future Policy Benefits - FPB - Additional Insurance Liabilities (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Variable Life | Asia |  |
Additional Liability, Long-Duration Insurance [Roll Forward] |  |
Balance, beginning of period | $ 1,258 | $ 1,381
Less: AOCI adjustment | 0 | 0
Balance, beginning of period, before AOCI adjustment | 1,258 | 1,381
Effect of actual variances from expected experience | (13) | (2)
Adjusted balance | 1,245 | 1,379
Assessments accrual | (1) | (1)
Interest accrual | 4 | 5
Excess benefits paid | (9) | (10)
Effect of foreign currency translation and other, net | (86) | (11)
Balance, end of period, before AOCI adjustment | 1,153 | 1,362
Add: AOCI adjustment | 0 | 0
Balance, end of period | $ 1,153 | $ 1,362
Weighted-average duration of the liability | 16 years | 17 years
Weighted-average interest accretion rate | 1.50% | 1.50%
Universal and Variable Universal Life | Asia |  |
Additional Liability, Long-Duration Insurance [Roll Forward] |  |
Balance, beginning of period | $ 424 | $ 455
Less: AOCI adjustment | (14) | (33)
Balance, beginning of period, before AOCI adjustment | 438 | 488
Effect of actual variances from expected experience | (17) | (3)
Adjusted balance | 421 | 485
Assessments accrual | 0 | (1)
Interest accrual | 1 | 2
Excess benefits paid | 0 | 0
Effect of foreign currency translation and other, net | (30) | (5)
Balance, end of period, before AOCI adjustment | 392 | 481
Add: AOCI adjustment | (7) | (23)
Balance, end of period | $ 385 | $ 458
Weighted-average duration of the liability | 43 years | 42 years
Weighted-average interest accretion rate | 1.40% | 1.50%
Universal and Variable Universal Life | MetLife Holdings |  |
Additional Liability, Long-Duration Insurance [Roll Forward] |  |
Balance, beginning of period | $ 2,362 | $ 2,156
Less: AOCI adjustment | (14) | (63)
Balance, beginning of period, before AOCI adjustment | 2,376 | 2,219
Effect of actual variances from expected experience | 14 | 11
Adjusted balance | 2,390 | 2,230
Assessments accrual | 26 | 28
Interest accrual | 32 | 30
Excess benefits paid | (37) | (40)
Balance, end of period, before AOCI adjustment | 2,411 | 2,248
Add: AOCI adjustment | (15) | (50)
Balance, end of period | 2,396 | 2,198
Less: Reinsurance recoverables | 2,086 | 748
Balance, end of period, net of reinsurance | $ 310 | $ 1,450
Weighted-average duration of the liability | 15 years | 16 years
Weighted-average interest accretion rate | 5.50% | 5.60%

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- Definition Amount, after effect of reinsurance, of present value of total expected payment to policyholder in excess of present value of total expected assessment. Excludes benefit classified as market risk benefit or under provisions of Topic 815 on derivative and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 + Details
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