CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Millions, unless otherwise specified	Total	Common Shares ($1 par value) [Member]	Paid-In Capital [Member]	(Accumulated Deficit) Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2011	$ 742	$ 348	$ 65	$ 38	$ 76	$ 215
Total comprehensive income (loss)	28			(27)	23	32
Shares issued		3	(3)
Shares retired:
Repurchased	(8)	(1)	(7)
Surrendered (non-cash)	(8)	(1)	(7)
Cash dividends declared	(80)		(54)	(26)
Dividend payment to noncontrolling interest	(40)					(40)
Stock-based compensation	40		40
Ending balance at Sep. 30, 2012	674	349	34	(15)	99	207
Beginning balance at Dec. 31, 2012	534	349	16	(102)	59	212
Total comprehensive income (loss)	283			227	22	34
Shares issued		3	(3)
Shares retired:
Repurchased	(35)	(2)	(11)	(22)
Surrendered (non-cash)	(20)	(1)	(19)
Cash dividends declared	(81)		(14)	(67)
Dividend payment to noncontrolling interest	(34)					(34)
Stock-based compensation	39		39
Ending balance at Sep. 30, 2013	$ 686	$ 349	$ 8	$ 36	$ 81	$ 212