Acquisitions (Details) (USD $)				1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Oct. 31, 2012 Goldman Sachs Administration Services	Oct. 15, 2012 Goldman Sachs Administration Services
Business Acquisition [Line Items]
Acquisition purchase price				$ 550,000,000
Single manager hedge fund assets under administration					200,000,000,000
Goodwill resulting from acquisition	6,036,000,000	5,977,000,000	5,645,000,000		290,000,000
Intangible assets resulting from acquisition					$ 257,000,000