CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Compre- hensive Loss	Treasury Stock, at Cost	Non- controlling Interests
Balance, shares at Dec. 31, 2022		111
Balance at Dec. 31, 2022	$ 5,930	$ 2	$ 2,295	$ 8,290	$ (21)	$ (4,673)	$ 37
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	699			662			37
Other comprehensive income (loss), net of taxes	1				1
Dividends declared	(241)			(241)
Distributions to noncontrolling interest partners	(36)						(36)
Issuance of common stock under benefit plans, shares		1
Issuance of common stock under benefit plans	20		(40)			60
Stock-based compensation expense	58		58
Exercise of stock options	60		(1)			61
Shares to cover employee payroll tax withholdings on stock issued under stock-based compensation plans	(28)		(10)			(18)
Balance, shares at Sep. 30, 2023		112
Balance at Sep. 30, 2023	6,463	$ 2	2,302	8,711	(20)	(4,570)	38
Balance, shares at Jun. 30, 2023		112
Balance at Jun. 30, 2023	6,287	$ 2	2,284	8,566	(16)	(4,587)	38
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	236			225			11
Other comprehensive income (loss), net of taxes	(4)				(4)
Dividends declared	(80)			(80)
Distributions to noncontrolling interest partners	(11)						(11)
Issuance of common stock under benefit plans	5		1			4
Stock-based compensation expense	18		18
Exercise of stock options	12		(1)			13
Balance, shares at Sep. 30, 2023		112
Balance at Sep. 30, 2023	6,463	$ 2	2,302	8,711	(20)	(4,570)	38
Balance, shares at Dec. 31, 2023		111
Balance at Dec. 31, 2023	6,342	$ 2	2,320	8,825	(14)	(4,826)	35
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	681			649			32
Other comprehensive income (loss), net of taxes	(1)				(1)
Dividends declared	(252)			(252)
Distributions to noncontrolling interest partners	(35)						(35)
Issuance of common stock under benefit plans	20		(40)			60
Stock-based compensation expense	61		61
Exercise of stock options, shares		1
Exercise of stock options	52					52
Shares to cover employee payroll tax withholdings on stock issued under stock-based compensation plans	(24)		(6)			(18)
Acquisition of additional ownership interest in subsidiary	(3)		(3)
Balance, shares at Sep. 30, 2024		112
Balance at Sep. 30, 2024	6,841	$ 2	2,332	9,222	(15)	(4,732)	32
Balance, shares at Jun. 30, 2024		111
Balance at Jun. 30, 2024	6,656	$ 2	2,314	9,080	(19)	(4,760)	39
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	236			226			10
Other comprehensive income (loss), net of taxes	4				4
Dividends declared	(84)			(84)
Distributions to noncontrolling interest partners	(17)						(17)
Issuance of common stock under benefit plans	7		1			6
Stock-based compensation expense	19		19
Exercise of stock options, shares		1
Exercise of stock options	24		1			23
Shares to cover employee payroll tax withholdings on stock issued under stock-based compensation plans	(1)					(1)
Acquisition of additional ownership interest in subsidiary	(3)		(3)
Balance, shares at Sep. 30, 2024		112
Balance at Sep. 30, 2024	$ 6,841	$ 2	$ 2,332	$ 9,222	$ (15)	$ (4,732)	$ 32