Receivables - Receivables and Receivables held for Sale (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 1,850	[1]	$ 3,858	[1]	$ 7,828	[1]
First Lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,358		2,871		6,145
Second Lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	166		329		625
Real Estate Secured Receivables Held for Sale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	298		364		0
Real estate secured [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,822		3,564		6,770
Personal non-credit card receivables held for sale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	28	[1],[2]	294	[1],[2]	0	[1],[2]
Personal non-credit card receivables held for investment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 0		$ 0		$ 1,058

[1] The following table summarizes the actions taken during the year ended December 31, 2013, 2012 and 2011 which resulted in the above receivables being classified as a TDR Loan.Year Ended December 31, 2013 2012 2011 (in millions)Interest rate modification$692 $1,814 $3,630Re-age of past due account1,158 2,044 4,198Total$1,850 $3,858 $7,828

[2] As discussed more fully in Note 7, "Receivables Held for Sale," we sold our personal non-credit card receivable portfolio on April 1, 2013.