Income Taxes - Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 419	$ 477	$ 456
State	133	151	130
Foreign	37	34	43
Current tax total	589	662	629
Deferred:
Federal	98	73	20
State	19	2	30
Foreign	7	8	(1)
Deferred tax total	124	83	49
Income tax expense	$ 713	$ 745	$ 678