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Market Risk Benefits
3 Months Ended
Mar. 31, 2024
Insurance [Abstract]  
Market Risk Benefits
4. Market Risk Benefits
Information regarding MRB assets and liabilities associated with variable annuities was as follows:
Three Months Ended
March 31,
20242023
(Dollars in millions)
Balance, beginning of period$9,722 $9,997 
Balance, beginning of period, before effect of changes in nonperformance risk7,348 8,253 
Decrements(30)(27)
Effect of actual different from expected experience— 122 
Effect of changes in interest rates(989)880 
Effect of changes in fund returns(630)(1,001)
Issuances— (3)
Effect of changes in risk margin(39)
Aging of the block and other348 324 
Balance, end of period, before effect of changes in nonperformance risk6,008 8,557 
Effect of changes in nonperformance risk2,157 1,751 
Balance, end of period8,165 10,308 
Less: Reinsurance recoverable, end of period27 70 
Balance, end of period, net of reinsurance (1)$8,138 $10,238 
Weighted-average attained age of contract holder73.2 years72.2 years
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(1)Amounts represent the sum of MRB assets and MRB liabilities presented on the consolidated balance sheets at March 31, 2024 and 2023, with the exception of $8 million and $3 million, respectively, of index-linked annuities not included in this table