Consolidated Statements Of Changes In Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Common Stock, Held in Treasury	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning balances at Dec. 31, 2018	$ 6,076	$ 1	$ (382)	$ 556	$ 5,477	$ (62)	$ 486
Beginning balance, shares issued at Dec. 31, 2018		134,651,380
Beginning balance, Treasury Stock, Shares at Dec. 31, 2018			6,183,125
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent	421				421
Net income attributable to noncontrolling interests	41						41
Net income	462
Other comprehensive income (loss)	(11)					(12)	1
Common stock repurchased, shares			517,712
Common stock repurchased	(30)		$ (30)
Shares issued—stock- based compensation, shares		0	(434,228)
Shares issued—stock-based compensation	1	$ 0	$ 35	(25)	(9)
Stock-based compensation (in shares)			0
Stock-based compensation	24			24
Dividends declared	(132)				(132)
Distributions to noncontrolling interests	(50)						(50)
Noncontrolling interests	63			(2)			65
Ending balances at Dec. 31, 2019	6,403	$ 1	$ (377)	553	5,757	(74)	543
Ending balance, shares issued at Dec. 31, 2019		134,651,380
Ending balance, Treasury Stock, Shares at Dec. 31, 2019			6,266,609
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent	330				330
Net income attributable to noncontrolling interests	43						43
Net income	373
Other comprehensive income (loss)	14					10	4
Common stock repurchased, shares			995,529
Common stock repurchased	(54)		$ (54)				0
Shares issued—stock- based compensation, shares		0	(440,964)
Shares issued—stock-based compensation	5	$ 0	$ 30	(13)	(12)
Stock-based compensation (in shares)			0
Stock-based compensation	29			29
Dividends declared	(137)				(137)
Distributions to noncontrolling interests	(55)						(55)
Ending balances at Dec. 31, 2020	$ 6,578	$ 1	$ (401)	569	5,938	(64)	535
Ending balance, shares issued at Dec. 31, 2020	134,651,380	134,651,380
Ending balance, Treasury Stock, Shares at Dec. 31, 2020	6,821,174		6,821,174
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent	$ 2,015				2,015
Net income attributable to noncontrolling interests	55						55
Net income	2,070
Other comprehensive income (loss)	29					28	1
Common stock repurchased, shares			355,800
Common stock repurchased	(30)		$ (30)				0
Shares issued—stock- based compensation, shares		0	(441,335)
Shares issued—stock-based compensation	$ 13	$ 0	$ 32	(19)	0
Stock-based compensation (in shares)	(239,131)		0
Stock-based compensation	$ 31			31
Dividends declared	(145)				(145)
Distributions to noncontrolling interests	(48)						(48)
Noncontrolling interests	30			0			30
Ending balances at Dec. 31, 2021	$ 8,528	$ 1	$ (399)	$ 581	$ 7,808	$ (36)	$ 573
Ending balance, shares issued at Dec. 31, 2021	134,651,380	134,651,380
Ending balance, Treasury Stock, Shares at Dec. 31, 2021	6,735,639		6,735,639