CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Deficit	Accumulated Other Comprehensive Loss	Stockholders' Equity Attributable to Parent	Noncontrolling Interest
Beginning balance at Dec. 31, 2018	$ 5,253	$ 446	$ (585)	$ 8,781	$ (2,511)	$ (913)	$ 5,218	$ 35
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive loss	(175)				(151)	(24)	(175)
Dividends declared on common stock	(98)			(98)			(98)
Equity compensation, net of tax	3	1	(3)	5			3
Ending balance at Mar. 31, 2019	4,983	447	(588)	8,688	(2,662)	(937)	4,948	35
Beginning balance at Dec. 31, 2019	4,996	447	(590)	8,430	(2,404)	(920)	4,963	33
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive loss	(1,414)				(1,279)	(135)	(1,414)
Dividends declared on common stock	(97)			(97)			(97)
Equity compensation, net of tax	2	1	(6)	7			2
Distribution to non-controlling interests holder	(3)							(3)
Other	(5)							(5)
Ending balance at Mar. 31, 2020	$ 3,479	$ 448	$ (596)	$ 8,340	$ (3,683)	$ (1,055)	$ 3,454	$ 25

Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

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