Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Federal Current Tax Benefit (Provision)	$ 24	$ 0	$ 91
State and Local Current Tax Benefit (Provision)	(3)	15	(6)
International Current Tax Benefit (Provision)	1	(14)	(2)
Federal Deferred Tax Provision	7,197	(4)	2
State and Local Deferred Tax Provision	794	(13)	0
Income Tax Benefit (Provision)	$ 8,013	$ (16)	$ 85