Derivative Instruments and Other Financial Instruments Used For Hedging (Details 2) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Cash flow hedges
Derivative Notional Amount	$ 71,093	$ 64,438
Income from accumulated other comprehensive income expected to be reclassified to net interest income	95
Cash Flow Hedges | Weighted average
Cash flow hedges
Weighted average remaining life of the currently active cash flow hedges	3 years 10 months 6 days
Cash Flow Hedges | LIBOR indexed loans | Interest rate swaps
Cash flow hedges
Derivative Notional Amount	$ 8,200