CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - 9 months ended Sep. 30, 2016 - USD ($) $ in Millions		Common Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Common Stock in Treasury [Member]	Total
Balance, shares at Dec. 31, 2015		390,138,549	1,725,000
Balance at Dec. 31, 2015		$ 4		$ 3,409	$ (1,082)	$ (48)	$ (1)	$ 2,282
Comprehensive loss:
Net loss					(2,433)			(2,433)
Other comprehensive income						9		9
Comprehensive loss								(2,424)
Stock-based compensation				50				50
Preferred stock dividend, shares	[1]	5,124,856
Preferred stock dividend	[1]			(27)				(27)
Issuance of common stock, shares		98,900,000
Issuance of common stock		$ 1		1,246				1,247
Issuance of restricted stock, shares		85,305
Cancellation of restricted stock, shares		(137,629)
Tax withholding - stock compensation, shares		(664,710)
Tax withholding - stock compensation				(5)				(5)
Balance, shares at Sep. 30, 2016		493,446,371	1,725,000
Balance at Sep. 30, 2016		$ 5		$ 4,673	$ (3,515)	$ (39)	$ (1)	$ 1,123

[1] Does not include 2,043,780 shares issued on October 17, 2016, on account of a dividend declared on September 21, 2016, distributed to holders of the Company's mandatory convertible preferred stock.