CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Millions	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interests [Member]	Total
Beginning balance at Dec. 31, 2020	$ 6	$ 5,129	$ 11,159	$ 39	$ (8,881)	$ 2	$ 7,454
Beginning balance, shares at Dec. 31, 2020	630,282				(207,481)
Equity roll forward
Consolidated net income			772				772
Other comprehensive income (loss), net of tax				31			31
Cash dividends declared			(489)				(489)
Equity-based compensation transactions, net		25	2		$ 59		86
Equity-based compensation transactions, net, shares					1,399
Common stock repurchase program		(50)			$ (450)		(500)
Common stock repurchase program, shares					(3,385)
Ending balance at Jun. 30, 2021	$ 6	5,104	11,444	70	$ (9,272)	2	7,354
Ending balance, shares at Jun. 30, 2021	630,282				(209,467)
Beginning balance at Mar. 31, 2021	$ 6	5,071	11,337	48	$ (9,035)	2	7,429
Beginning balance, shares at Mar. 31, 2021	630,282				(208,201)
Equity roll forward
Consolidated net income			351				351
Other comprehensive income (loss), net of tax				22			22
Cash dividends declared			(242)				(242)
Equity-based compensation transactions, net		33	(2)		$ 13		44
Equity-based compensation transactions, net, shares					310
Common stock repurchase program					$ (250)		(250)
Common stock repurchase program, shares					(1,576)
Ending balance at Jun. 30, 2021	$ 6	5,104	11,444	70	$ (9,272)	2	7,354
Ending balance, shares at Jun. 30, 2021	630,282				(209,467)
Beginning balance at Dec. 31, 2021	$ 6	5,169	12,004	17	$ (10,072)	2	7,126
Beginning balance, shares at Dec. 31, 2021	630,282				(214,159)
Ending balance at Mar. 31, 2022	$ 6	5,178	12,247	15	$ (10,302)	2	7,146
Ending balance, shares at Mar. 31, 2022	630,282				(215,102)
Beginning balance at Dec. 31, 2021	$ 6	5,169	12,004	17	$ (10,072)	2	7,126
Beginning balance, shares at Dec. 31, 2021	630,282				(214,159)
Equity roll forward
Consolidated net income			1,100			1	1,101
Other comprehensive income (loss), net of tax				(34)			(34)
Cash dividends declared			(544)				(544)
Equity-based compensation transactions, net		18	3		$ 47		68
Equity-based compensation transactions, net, shares					1,003
Common stock repurchase program		70			$ (594)		(524)
Common stock repurchase program, shares					(3,852)
Other, net						(1)	(1)
Other, net, shares					2
Ending balance at Jun. 30, 2022	$ 6	5,257	12,563	(17)	$ (10,619)	2	7,192
Ending balance, shares at Jun. 30, 2022	630,282				(217,006)
Beginning balance at Mar. 31, 2022	$ 6	5,178	12,247	15	$ (10,302)	2	7,146
Beginning balance, shares at Mar. 31, 2022	630,282				(215,102)
Equity roll forward
Consolidated net income			587				587
Other comprehensive income (loss), net of tax				(32)			(32)
Cash dividends declared			(269)				(269)
Equity-based compensation transactions, net		29	(2)		$ 7		34
Equity-based compensation transactions, net, shares					141
Common stock repurchase program		50			$ (324)		(274)
Common stock repurchase program, shares					(2,046)
Other, net, shares					1
Ending balance at Jun. 30, 2022	$ 6	$ 5,257	$ 12,563	$ (17)	$ (10,619)	$ 2	$ 7,192
Ending balance, shares at Jun. 30, 2022	630,282				(217,006)