UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Balance (in shares) at Dec. 31, 2022		63,781	(25,918)
Balance at Dec. 31, 2022	$ 2,782	$ 0	$ (30,983)	$ 6,491	$ 27,541	$ (267)
Increase (Decrease) in Stockholders' Equity
Net income	4,067				4,067
Other comprehensive income (loss), net of tax	(18)					(18)
Exercise of stock options and vesting of restricted stock units and performance share units (in shares)		251
Exercise of stock options and vesting of restricted stock units and performance share units	122			122
Stock-based compensation	$ 383			383
Repurchase of common stock (in shares)	(2,926)		(2,926)
Repurchase of common stock	$ (7,961)		$ (7,961)
Balance (in shares) at Sep. 30, 2023		64,032	(28,844)
Balance at Sep. 30, 2023	(625)	$ 0	$ (38,944)	6,996	31,608	(285)
Balance (in shares) at Jun. 30, 2023		64,015	(27,974)
Balance at Jun. 30, 2023	(665)	$ 0	$ (36,319)	6,848	29,097	(291)
Increase (Decrease) in Stockholders' Equity
Net income	2,511				2,511
Other comprehensive income (loss), net of tax	6					6
Exercise of stock options and vesting of restricted stock units and performance share units (in shares)		17
Exercise of stock options and vesting of restricted stock units and performance share units	13			13
Stock-based compensation	$ 135			135
Repurchase of common stock (in shares)	(870)		(870)
Repurchase of common stock	$ (2,625)		$ (2,625)
Balance (in shares) at Sep. 30, 2023		64,032	(28,844)
Balance at Sep. 30, 2023	(625)	$ 0	$ (38,944)	6,996	31,608	(285)
Balance (in shares) at Dec. 31, 2023		64,048	(29,650)
Balance at Dec. 31, 2023	(2,744)	$ 0	$ (41,426)	7,175	31,830	(323)
Increase (Decrease) in Stockholders' Equity
Net income	4,814				4,814
Other comprehensive income (loss), net of tax	20					20
Exercise of stock options and vesting of restricted stock units and performance share units (in shares)		218
Exercise of stock options and vesting of restricted stock units and performance share units	11			11
Stock-based compensation	$ 449			449
Repurchase of common stock (in shares)	(1,439)		(1,439)
Repurchase of common stock	$ (5,308)		$ (5,308)
Dividends	(895)				(895)
Balance (in shares) at Sep. 30, 2024		64,266	(31,089)
Balance at Sep. 30, 2024	(3,653)	$ 0	$ (46,734)	7,635	35,749	(303)
Balance (in shares) at Jun. 30, 2024		64,259	(30,623)
Balance at Jun. 30, 2024	(4,276)	$ 0	$ (44,958)	7,479	33,527	(324)
Increase (Decrease) in Stockholders' Equity
Net income	2,517				2,517
Other comprehensive income (loss), net of tax	21					21
Exercise of stock options and vesting of restricted stock units and performance share units (in shares)		7
Exercise of stock options and vesting of restricted stock units and performance share units	2			2
Stock-based compensation	$ 154			154
Repurchase of common stock (in shares)	(466)		(466)
Repurchase of common stock	$ (1,776)		$ (1,776)
Dividends	(295)				(295)
Balance (in shares) at Sep. 30, 2024		64,266	(31,089)
Balance at Sep. 30, 2024	$ (3,653)	$ 0	$ (46,734)	$ 7,635	$ 35,749	$ (303)