Income Taxes And Tax-Related Items (Current and Deferred Components of the Provision for Income Taxes for Continuing Operations) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes And Tax-Related Items Disclosure [Abstract]
Current Federal	$ 42	$ 239	$ (28)
Current Foreign	9	6	6
Current State and local	7	12	3
Total current	58	257	(19)
Deferred Federal	73	(202)	(102)
Deferred State and local	6	0	(10)
Total deferred	79	(202)	(112)
Total	$ 137	$ 55	$ (131)