Non-Interest Revenue and Expense Detail (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Details Of Certain Statements Of Income Lines Details [Abstract]
Global Network Services partner revenues	$ 181	$ 151	$ 339	$ 295
Net gain on investment securities	41	29	80	65
Other revenues	363	387	667	744
Total other revenues	$ 585	$ 567	$ 1,086	$ 1,104