CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock, Common	Non-controlling Interests
Balance, shares at Dec. 31, 2020		133.0
Balance, value at Dec. 31, 2020	$ 6,809	$ 2	$ 2,841	$ 9,303	$ (21)	$ (5,366)	$ 50
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,067			1,995			72
Other comprehensive income (loss), net of tax	7				7
Dividends declared	(307)			(307)
Distributions to noncontrolling interest partners	(83)						(83)
Issuance of common stock under benefit plans	26		(21)			47
Stock-based compensation expense	79		79
Exercise of stock options, shares		2.0
Exercise of stock options, value	129		20			109
Shares to cover employee payroll tax withholdings on stock issued under stock-based compensation plans	(22)		(10)			$ (12)
Purchases of treasury stock, shares		(16.0)				(16.0)
Purchases of treasury stock, value	(2,222)					$ (2,222)
Retirement of treasury stock	0		(649)	(3,342)		3,991
Balance, shares at Dec. 31, 2021		119.0
Balance, value at Dec. 31, 2021	6,483	$ 2	2,260	7,649	(14)	(3,453)	39
Balance, value at Dec. 31, 2020	82
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income	13
Distributions to noncontrolling interest partners	(16)
Balance, value at Dec. 31, 2021	79
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,008			946			62
Other comprehensive income (loss), net of tax	(7)				(7)
Dividends declared	(305)			(305)
Distributions to noncontrolling interest partners	(64)						(64)
Issuance of common stock under benefit plans, shares		1.0
Issuance of common stock under benefit plans	28		(36)			64
Stock-based compensation expense	77		77
Exercise of stock options, shares		1.0
Exercise of stock options, value	123		4			119
Shares to cover employee payroll tax withholdings on stock issued under stock-based compensation plans	(28)		(10)			$ (18)
Purchases of treasury stock, shares		(10.0)				(10.1)
Purchases of treasury stock, value	(1,385)					$ (1,385)
Balance, shares at Dec. 31, 2022		111.0
Balance, value at Dec. 31, 2022	5,930	$ 2	2,295	8,290	(21)	(4,673)	37
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income	7
Distributions to noncontrolling interest partners	(9)
Net income	903			854			49
Other comprehensive income (loss), net of tax	7				7
Dividends declared	(319)			(319)
Distributions to noncontrolling interest partners	(51)						(51)
Issuance of common stock under benefit plans, shares		1.0
Issuance of common stock under benefit plans	27		(39)			66
Stock-based compensation expense	77		77
Exercise of stock options, shares		1.0
Exercise of stock options, value	72		(3)			75
Shares to cover employee payroll tax withholdings on stock issued under stock-based compensation plans	(28)		(10)			$ (18)
Purchases of treasury stock, shares		(2.0)				(2.0)
Purchases of treasury stock, value	(276)					$ (276)
Balance, shares at Dec. 31, 2023		111.0
Balance, value at Dec. 31, 2023	6,342	$ 2	$ 2,320	$ 8,825	$ (14)	$ (4,826)	$ 35
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income	5
Distributions to noncontrolling interest partners	$ (6)