CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - 3 months ended Mar. 31, 2017 - USD ($) $ in Millions		Common Stock [Member]	Preferred Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	[1]	Accumulated Other Comprehensive Income (Loss) [Member]	Common Stock in Treasury [Member]	Total
Balance, shares at Dec. 31, 2016		495,248,369	1,725,000
Balance at Dec. 31, 2016		$ 5		$ 4,677	$ (3,725)		$ (39)	$ (1)	$ 917
Comprehensive income:
Net income					351				351
Other comprehensive income
Comprehensive income (loss)									351
Stock-based compensation				10					10
Preferred stock dividend, shares	[2]	2,751,410
Issuance of restricted stock, shares		4,549,122
Cancellation of restricted stock, shares		(113,185)
Performance units vested, shares		121,208
Tax withholding - stock compensation, shares		(59,455)
Balance, shares at Mar. 31, 2017		502,497,469	1,725,000
Balance at Mar. 31, 2017		$ 5		$ 4,687	$ (3,374)		$ (39)	$ (1)	$ 1,278

[1] Includes a net cumulative-effect adjustment of $59 million related to the recognition of previously unrecognized windfall tax benefits resulting from the adoption of ASU 2016-09 as of the beginning of 2017. This adjustment was offset by an increase in net deferred tax assets and the related income tax valuation allowance of the same amount.

[2] Does not include 3,346,865 shares issued on April 17, 2017 and distributed to holders of the Company's mandatory convertible preferred stock.