CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interests [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Total
Beginning balance at Dec. 31, 2018	$ 6	$ 4,993		$ 9,797	$ (87)	$ (8,434)	$ 1		$ 6,276
Beginning balance, shares at Dec. 31, 2018	630,282					(206,299)
Equity roll forward
Consolidated net income				1,670			1		1,671
Other comprehensive income (loss), net of tax					79				79
Cash dividends declared				(876)					(876)
Equity-based compensation transactions, net		56		1		$ 107			164
Equity-based compensation transactions, net, shares						2,585
Common stock repurchase program						$ (244)			$ (244)
Common stock repurchase program, shares						(2,247)			(2,247,000)
Other, net, shares						5
Ending balance at Dec. 31, 2019	$ 6	5,049	$ (2)	10,592	(8)	$ (8,571)	2	$ (2)	$ 7,070
Ending balance, shares at Dec. 31, 2019	630,282					(205,956)
Equity roll forward
Consolidated net income				1,496					1,496
Other comprehensive income (loss), net of tax					47				47
Cash dividends declared				(927)					(927)
Equity-based compensation transactions, net		80		1		$ 91			172
Equity-based compensation transactions, net, shares						2,158
Common stock repurchase program						$ (402)			$ (402)
Common stock repurchase program, shares						(3,687)			(3,687,000)
Other, net				(1)		$ 1
Other, net, shares						4
Ending balance at Dec. 31, 2020	$ 6	5,129		11,159	39	$ (8,881)	2		$ 7,454
Ending balance, shares at Dec. 31, 2020	630,282					(207,481)
Equity roll forward
Consolidated net income				1,816			1		1,817
Other comprehensive income (loss), net of tax					(22)				(22)
Cash dividends declared				(970)					(970)
Equity-based compensation transactions, net		110		(1)		$ 89			198
Equity-based compensation transactions, net, shares						2,049
Common stock repurchase program		(70)				$ (1,280)			$ (1,350)
Common stock repurchase program, shares						(8,731)			(8,731,000)
Other, net							(1)		$ (1)
Other, net, shares						4
Ending balance at Dec. 31, 2021	$ 6	$ 5,169		$ 12,004	$ 17	$ (10,072)	$ 2		$ 7,126
Ending balance, shares at Dec. 31, 2021	630,282					(214,159)