CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Millions, unless otherwise specified	Common Shares ($1 par value)	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest	Total
Balance at Dec. 31, 2013	$ 349	$ 16	$ 79	$ 115	$ 228	$ 787
Increase (Decrease) in Stockholders' Equity
Total comprehensive income			74		11	85
Shares issued	2	(5)				(3)
Shares retired:
Repurchased	(2)	(9)	(28)			(39)
Surrendered (non-cash)		(14)				(14)
Cash dividends declared			(27)			(27)
Stock-based compensation		12				12
Balance at Mar. 31, 2014	349		98	115	239	801
Balance at Dec. 31, 2014	345		690	(111)	204	1,128
Increase (Decrease) in Stockholders' Equity
Total comprehensive income			64	(69)	(14)	(19)
Shares issued	3	(8)				(5)
Shares retired:
Repurchased	(4)		(102)			(106)
Surrendered (non-cash)	(1)		(15)			(16)
Cash dividends declared			(31)			(31)
Stock-based compensation		8				8
Balance at Mar. 31, 2015	$ 343		$ 606	$ (180)	$ 190	$ 959