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Accounts Receivable and Loans (Details 1) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Loans segment information        
Card Member loans $ 67,238,000,000 $ 65,229,000,000    
Less: Reserve for losses 1,261,000,000 1,471,000,000 1,874,000,000 3,646,000,000
Card Member loans, net 65,977,000,000 63,758,000,000    
Other loans, net 608,000,000 551,000,000    
Accounts Receivable and Loans Textuals [Abstract]        
Other loans, reserves 13,000,000 20,000,000    
Variable Interest Enterprise [Member]
        
Loans segment information        
Card Member loans 31,245,000,000 32,731,000,000    
U S Card Services [Member]
        
Loans segment information        
Card Member loans 58,395,000,000 55,953,000,000    
U S Card Services [Member] | Variable Interest Enterprise [Member]
        
Accounts Receivable and Loans Textuals [Abstract]        
Gross Card Member loans available to settle the obligations of a variable interest entity 31,200,000,000 32,700,000,000    
International Card Services [Member]
        
Loans segment information        
Card Member loans 8,790,000,000 9,236,000,000    
Global Commercial Services [Member]
        
Loans segment information        
Card Member loans $ 53,000,000 $ 40,000,000