Income Taxes - Significant Components of Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current expense
Federal	$ 108	$ 291	$ 379
State	8	47	97
Foreign	490	513	481
Current expense	606	851	957
Deferred expense (benefit)
Federal	(99)	(52)	23
State	6	(10)	7
Foreign	(37)	39	(119)
Deferred expense (benefit)	(130)	(23)	(89)
Income tax expense	$ 476	$ 828	$ 868