Consolidated Statement of Comprehensive Income (Unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Foreign currency translation, net of related taxes of	$ 8	$ (64)
Change in net unrealized losses on available-for-sale securities, net of reclassification adjustment and net of related taxes of	162	29
Change in net unrealized losses on available-for-sale securities designated in fair value hedges, net of related taxes of	(6)	9
Other-than-temporary impairment on held-to-maturity securities related to factors other than credit, net of related taxes of	5	4
Change in net unrealized losses on cash flow hedges, net of related taxes of	(5)	41
Change in minimum pension liability, net of related taxes of	$ 3	$ 2