Quarterly report pursuant to Section 13 or 15(d)

Securities - Certain Corporate and Strategic Investments (Details)

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Securities - Certain Corporate and Strategic Investments (Details) (Merchant Servicing Joint Venture, USD $)
In Billions, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Merchant Servicing Joint Venture
   
Schedule of Equity Method Investments [Line Items]    
Equity method investment ownership percentage 49.00%  
Equity method investments $ 3.1 $ 3.2