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
Jun. 30, 2015
Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]    
Equity method investment ownership percentage 49.00% 49.00%
Equity method investments $ 3.1 $ 3.1