v3.26.1
Fair Value Hierarchy - Summary of Changes in Fair Value for Level 3 Loans (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Loans Receivable    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 546 $ 683
Net realized gains/(losses) 5 14
Net unrealized gains/(losses) (8) 0
Purchases 46 11
Sales 0 (4)
Settlements (14) (45)
Transfers into level 3 35 0
Transfers out of level 3 (19) (1)
Ending balance 591 658
Corporate    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance 290 403
Net realized gains/(losses) 1 7
Net unrealized gains/(losses) (5) 0
Purchases 46 10
Settlements (7) (17)
Transfers out of level 3 0 (1)
Ending balance 325 402
Real estate    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance 99 117
Net realized gains/(losses) 2 4
Net unrealized gains/(losses) 0 0
Sales 0 (3)
Settlements (4) (7)
Ending balance 97 111
Other collateralized    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance 138 135
Net realized gains/(losses) 1 0
Net unrealized gains/(losses) 0 2
Purchases 0 1
Settlements (2) (18)
Ending balance 137 120
Other    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance 19 28
Net realized gains/(losses) 1 3
Net unrealized gains/(losses) (3) (2)
Sales 0 (1)
Settlements (1) (3)
Transfers into level 3 35 0
Transfers out of level 3 (19) 0
Ending balance $ 32 $ 25