Goodwill And Other Intangible Assets (Changes In The Carrying Amount Of Other Intangible Assets) (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Beginning balance			$ 2,593	$ 1,810
Acquisitions			28	1,139
Amortization	(50)	(52)	(149)	(132)
Foreign currency translation, net			12	(6)
Other	2	(1)	2	(1)
Ending balance	2,486	2,812	2,486	2,812
Investment Servicing [Member]
Beginning balance			2,559	1,760
Acquisitions				1,139
Amortization			(142)	(124)
Foreign currency translation, net			14	(5)
Other		4		4
Ending balance	2,431	2,774	2,431	2,774
Investment Management [Member]
Beginning balance			34	50
Acquisitions			28
Amortization			(7)	(8)
Foreign currency translation, net			(2)	(1)
Other	2	(3)	2	(3)
Ending balance	$ 55	$ 38	$ 55	$ 38