CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Shares ($1 par value)	Paid-In Capital	Retained Earnings (Deficit)	Accumulated Other Comprehensive Loss	Noncontrolling Interest
Balance at Dec. 31, 2014	$ 1,128	$ 345	$ 0	$ 690	$ (111)	$ 204
Increase (Decrease) in Stockholders' Equity
Total comprehensive income (loss)	143			169	(36)	10
Shares issued	(8)	3	(11)
Shares retired:
Repurchased	(207)	(8)	(6)	(193)
Surrendered (non-cash)	(16)	(1)		(15)
Cash dividends declared	(62)			(62)
Dividend payment to noncontrolling interest	(36)					(36)
Stockholders' Equity Note, Spinoff Transaction	(828)			(828)
Stock-based compensation	17		17
Balance at Jun. 30, 2015	131	339	0	(239)	(147)	178
Balance at Dec. 31, 2015	58	330	0	(300)	(165)	193
Increase (Decrease) in Stockholders' Equity
Total comprehensive income (loss)	279			259	(5)	25
Shares issued	(11)	2	(13)
Shares retired:
Repurchased	(174)	(6)	(10)	(158)
Surrendered (non-cash)	(11)			(11)
Cash dividends declared	(63)			(63)
Dividend payment to noncontrolling interest	(31)					(31)
Stock-based compensation	23		23
Balance at Jun. 30, 2016	$ 70	$ 326	$ 0	$ (273)	$ (170)	$ 187