Consolidated Condensed Statements of Shareholders' Equity (Deficit) (Unaudited) (USD $) In Millions	Total	Comprehensive Income	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Shares
Beginning Balance at Dec. 31, 2009	$ 87		$ 2	$ 234	$ 1,282	$ (121)	$ (1,310)
Comprehensive income:
Net income	495	495			495
Other comprehensive gains, pension liability, net of tax expense of $5 and $ (2) in respectively 2010 and 2011	9	9				9
Comprehensive income		504
Dividends paid	(307)				(307)
Shares repurchased	(340)						(340)
Share-based compensation	2			2
Ending Balance at Jun. 30, 2010	(54)		2	236	1,470	(112)	(1,650)
Beginning Balance at Dec. 31, 2010	(225)		2	242	1,666	(109)	(2,026)
Comprehensive income:
Net income	539	539			539
Other comprehensive gains, pension liability, net of tax expense of $5 and $ (2) in respectively 2010 and 2011	(3)	(3)				(3)
Comprehensive income		536
Dividends paid	(373)				(373)
Shares repurchased	(783)						(783)
Share-based compensation	14			14
Ending Balance at Jun. 30, 2011	$ (831)		$ 2	$ 256	$ 1,832	$ (112)	$ (2,809)