v3.25.2
Derivative Financial Instruments - Schedule of Gains (Losses) from Valuation and Settlements Reported on Derivatives Not Designated as Accounting Hedges (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives $ (45) $ (14) $ (75) $ (6)
Net gains (losses) on investments and derivatives        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives (65) (15) (84) (23)
Operating costs and expenses        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives 20 1 9 17
Interest rate contracts        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives (9) (14) (10) (21)
Interest rate contracts | Net gains (losses) on investments and derivatives        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives (9) (14) (10) (21)
Interest rate contracts | Operating costs and expenses        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives 0 0 0 0
Equity and index contracts        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives 9 (4) (2) (1)
Equity and index contracts | Net gains (losses) on investments and derivatives        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives (8) (4) (8) (15)
Equity and index contracts | Operating costs and expenses        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives 17 0 6 14
Contingent consideration        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives 3 1 3 3
Contingent consideration | Net gains (losses) on investments and derivatives        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives 0 0 0 0
Contingent consideration | Operating costs and expenses        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives 3 1 3 3
Foreign currency contracts        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives (38) 3 (56) 14
Foreign currency contracts | Net gains (losses) on investments and derivatives        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives (38) 3 (56) 14
Foreign currency contracts | Operating costs and expenses        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives 0 $ 0 0 0
Credit default contracts        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives (10)   (10) (1)
Credit default contracts | Net gains (losses) on investments and derivatives        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives (10)   (10) (1)
Credit default contracts | Operating costs and expenses        
Derivative Instruments, Gain (Loss)        
Gains (losses) from valuation and settlements reported on derivatives $ 0   $ 0 $ 0