Finance Receivables and Loans, Net (Commercial Criticized Exposure) (Details)	Dec. 31, 2014	Dec. 31, 2013
Concentration Risk [Line Items]
Commercial Criticized Finance Receivables and Loans	100.00%	100.00%
5500 Retail, Auto Dealers and Gasoline Stations [Member]
Concentration Risk [Line Items]
Commercial Criticized Finance Receivables and Loans	87.30%	91.40%
620000 to 629999 Health Care and Social Assistance [Member]
Concentration Risk [Line Items]
Commercial Criticized Finance Receivables and Loans	3.50%	1.60%
532210 Consumer Electronics and Appliances Rental [Member]
Concentration Risk [Line Items]
Commercial Criticized Finance Receivables and Loans	2.90%	3.40%
810000 to 819999 Other Services (except Public Administration) [Member]
Concentration Risk [Line Items]
Commercial Criticized Finance Receivables and Loans	6.30%	3.60%