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Market Risk Benefits
3 Months Ended
Mar. 31, 2025
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,
20252024
(Dollars in millions)
Balance, beginning of period$7,250 $9,722 
Balance, beginning of period, before effect of changes in nonperformance risk5,236 7,348 
Decrements(24)(30)
Effect of actual different from expected experience(19)— 
Effect of changes in interest rates677 (989)
Effect of changes in fund returns87 (630)
Issuances— 
Effect of changes in risk margin13 (39)
Aging of the block and other248 348 
Balance, end of period, before effect of changes in nonperformance risk6,219 6,008 
Effect of changes in nonperformance risk2,049 2,157 
Balance, end of period8,268 8,165 
Less: Reinsurance recoverable, end of period30 27 
Balance, end of period, net of reinsurance (1)$8,238 $8,138 
Weighted-average attained age of contract holder74.0 years73.2 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, 2025 and 2024, with the exception of $30 million and $8 million, respectively, of index-linked annuities not included in this table.