Investments - Schedule of Net Gains (Losses) on Investments and Derivatives by Transaction Type (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Investments [Abstract]
Sales	$ (90)	$ (130)	$ (201)	$ (250)
Credit losses	(16)	(37)	(131)	(49)
Valuation change of equity investments	18	23	88	221
Valuation change and settlements of derivatives	(15)	(7)	(23)	(59)
Net gains (losses) on investments and derivatives	$ (103)	$ (151)	$ (267)	$ (137)