Goodwill and Other Intangible Assets - Changes In The Carrying Amount Of Goodwill (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Goodwill [Roll Forward]
Beginning balance	$ 5,826	$ 6,036
Foreign currency translation and other, net	(163)	2
Ending balance	5,663	6,038
Investment Servicing
Goodwill [Roll Forward]
Beginning balance	5,793	5,999
Foreign currency translation and other, net	(160)	2
Ending balance	5,633	6,001
Investment Management
Goodwill [Roll Forward]
Beginning balance	33	37
Foreign currency translation and other, net	(3)	0
Ending balance	$ 30	$ 37