Quarterly report pursuant to Section 13 or 15(d)

Sale of Wealth Management Businesses (Details)

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Sale of Wealth Management Businesses (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Loss on sale International Wealth Management business $ 80 $ 0
Equity Method Investee [Member]
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Loss on sale International Wealth Management business $ 80