Accounts Receivable and Loans (Details Textuals) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2011 Percent Accounts	Sep. 30, 2011 Accounts Percent
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Outstanding balance of cardmember loans and receivables modified through settlement programs	$ 5.8	$ 5.8
Reserve on the outanding balance of cardmember loans and receivables modified through settlement programs	3.7	3.7
U S Card Services [Member] | Cardmember Loans [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Average interest rate reductions by class of cardmember loans	12.00%	12.00%
U S Card Services [Member] | Cardmember Receivables [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Average payment term extension	15
U S Card Services [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Estimated reduction in interest income due to modification	$ 2	$ 17