Annual report pursuant to Section 13 and 15(d)

Sale of International Wealth Management Business and Joint Venture Investment (Details)

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Sale of International Wealth Management Business and Joint Venture Investment (Details) (Japanese Brokerage Joint Venture, USD $)
12 Months Ended
Dec. 31, 2012
Japanese Brokerage Joint Venture
 
Schedule of Equity Method Investments [Line Items]  
Gain on sale of Japanese brokerage joint venture $ 370,000,000
Combined client balances $ 115,000,000,000