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Income Taxes (Components Of Income Tax Provision (Benefit)) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Line Items]
Current	$ (22)	$ 0	$ (25)
Deferred income taxes	(324)	(569)	25
Income tax benefit	(346)	(569)	0
AA [Member]
Income Tax Disclosure [Line Items]
Current	(30)	0	(25)
Deferred income taxes	(324)	(569)	25
Income tax benefit	$ (354)	$ (569)	$ 0

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.