Derivative Instruments - Derivatives Collateral (Details 3) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivative receivable collateral:
Net derivative receivables	$ 50,025	$ 45,982
Collateral not nettable on the Consolidated balance sheets	(12,414)	(11,350)
Net exposure	37,611	34,632
Derivative payable collateral:
Net derivative payables	41,617	49,290
Collateral not nettable on the Consolidated balance sheets	(6,873)	(20,109)
Net amount	$ 34,744	$ 29,181