Goodwill and Other Intangible Assets - Changes In The Carrying Amount Of Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Finite-lived Intangible Assets [Roll Forward]
Beginning balance			$ 2,025	$ 2,360
Amortization	$ (49)	$ (54)	(99)	(108)
Foreign currency translation and other, net			(55)	(5)
Ending balance	1,871	2,247	1,871	2,247
Investment Servicing
Finite-lived Intangible Assets [Roll Forward]
Beginning balance			1,998	2,321
Amortization			(95)	(104)
Foreign currency translation and other, net			(54)	(5)
Ending balance	1,849	2,212	1,849	2,212
Investment Management
Finite-lived Intangible Assets [Roll Forward]
Beginning balance			27	39
Amortization			(4)	(4)
Foreign currency translation and other, net			(1)	0
Ending balance	$ 22	$ 35	$ 22	$ 35