v3.24.2.u1
Variable Interest Entities (Narrative) (Detail) - Variable Interest Entity, Primary Beneficiary [Member] - Structured Finance and International Insurance [Member]
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
VariableInterestEntities
Mar. 31, 2024
VariableInterestEntities
Jun. 30, 2023
USD ($)
VariableInterestEntities
Mar. 31, 2023
USD ($)
VariableInterestEntities
Jun. 30, 2023
VariableInterestEntities
Variable Interest Entity [Line Items]          
Number of variable interest entities deconsolidated | VariableInterestEntities 1 0 1 1  
Net realized gains (losses) related to deconsolidation | $ $ (14)        
Number of variable interest entities consolidated | VariableInterestEntities 0 0 0   0
Recorded Due To Credit Losses in AOCI [Member]          
Variable Interest Entity [Line Items]          
Net realized gains (losses) related to deconsolidation | $ $ (9)   $ (7) $ (15)