Income Taxes Income Taxes (Schedule of Income Tax Expense from Discontinued Operations) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ (274)	$ (248)	$ (41)
State	(41)	(6)	(17)
Total current benefit	(315)	(254)	(58)
Deferred:
Federal	232	(368)	10
State	40	(70)	15
Total deferred expense (benefit)	272	(438)	25
Total income tax benefit	$ (43)	$ (692)	$ (33)