Goodwill and Intangible Assets-Goodwill by Business Segment (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Goodwill [Roll Forward]
Beginning Balance	$ 18,073	$ 18,075
Acquisitions/dispositions	39	(69)
Foreign currency translation	(120)	2
Other		17	[1]
Ending Balance	17,992	18,025
Investment Management
Goodwill [Roll Forward]
Beginning Balance	9,473	9,440	[2]
Acquisitions/dispositions	0	0	[2]
Foreign currency translation	(45)	(12)	[2]
Other		17	[1],[2]
Ending Balance	9,428	9,445	[2]
Investment Services
Goodwill [Roll Forward]
Beginning Balance	8,550	8,517
Acquisitions/dispositions	39	0
Foreign currency translation	(75)	13
Other		0	[1]
Ending Balance	8,514	8,530
Other
Goodwill [Roll Forward]
Beginning Balance	50	118	[2]
Acquisitions/dispositions	0	(69)	[2]
Foreign currency translation	0	1	[2]
Other		0	[1],[2]
Ending Balance	$ 50	$ 50	[2]

[1] Other changes in goodwill include purchase price adjustments and certain other reclassifications.

[2] Includes the reclassification of goodwill associated with the Newton Private Clients business from Investment Management to the Other segment.