v3.24.2.u1
Fair Value of Financial Instruments (Realized And Unrealized Gains And Losses Included In Earnings Pertaining To Level 3 Assets And Liabilities) (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]        
Net gains (losses) on financial instruments at fair value and foreign exchange $ (55) $ 11 $ (51) $ (1)
Fair Value, Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Realized Investment Gains (Losses) Realized Investment Gains (Losses) Realized Investment Gains (Losses) Realized Investment Gains (Losses)
Variable Interest Entity, Primary Beneficiary [Member]        
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]        
Net gains (losses) on financial instruments at fair value and foreign exchange $ 1 $ (21) $ (24) $ (24)
Fair Value Inputs Level 3 [Member] | Total Gains (Losses) Included in Earnings [Member]        
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]        
Net gains (losses) on financial instruments at fair value and foreign exchange (56) 3 (60) 0
Total revenues (68) (24) (96) (39)
Fair Value Inputs Level 3 [Member] | Change in Unrealized Gains (Losses) for the Period Included in Earnings for Assets and Liabilities still held [Member]        
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]        
Net gains (losses) on financial instruments at fair value and foreign exchange (55) 3 (57) 0
Total revenues (54) (7) (56) (11)
Fair Value Inputs Level 3 [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Total Gains (Losses) Included in Earnings [Member]        
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]        
Net gains (losses) on financial instruments at fair value and foreign exchange (12) [1] (27) [1] (36) [2] (39) [2]
Fair Value Inputs Level 3 [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Change in Unrealized Gains (Losses) for the Period Included in Earnings for Assets and Liabilities still held [Member]        
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]        
Net gains (losses) on financial instruments at fair value and foreign exchange $ 1 [1] $ (10) [1] $ 1 [2] $ (11) [2]
[1] Reported within "Net gains (losses) on financial instruments at fair value and foreign exchange-VIE" and "Other net realized gains (losses)-VIE" on the Company's consolidated statements of operations.
[2] Reported within "Net gains (losses) on financial instruments at fair value and foreign exchange-VIE" and "Other net realized gains (losses)-VIE" on the Company's consolidated statements of operations.