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Market Risk Benefits
6 Months Ended
Jun. 30, 2024
Insurance [Abstract]  
Market Risk Benefits
4. Market Risk Benefits
Information regarding MRB assets and liabilities associated with variable annuities was as follows:
Six Months Ended
June 30,
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(67)(54)
Effect of actual different from expected experience88 170 
Effect of changes in interest rates(1,547)(146)
Effect of changes in fund returns(648)(1,529)
Issuances— (5)
Effect of changes in risk margin(53)(18)
Aging of the block and other663 712 
Balance, end of period, before effect of changes in nonperformance risk5,784 7,383 
Effect of changes in nonperformance risk2,049 1,867 
Balance, end of period7,833 9,250 
Less: Reinsurance recoverable, end of period22 50 
Balance, end of period, net of reinsurance (1)$7,811 $9,200 
Weighted-average attained age of contract holder73.4 years72.6 years
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(1)Amounts represent the sum of MRB assets and MRB liabilities presented on the consolidated balance sheets at June 30, 2024 and 2023, with the exception of $0 and $4 million, respectively, of index-linked annuities not included in this table.