XML 52 R43.htm IDEA: XBRL DOCUMENT v3.8.0.1
Finance Receivables - Troubled Debt Restructurings (Details) - Automobile Loan [Member]
$ in Millions
3 Months Ended
Mar. 31, 2018
USD ($)
loan
Mar. 31, 2017
USD ($)
loan
Dec. 31, 2017
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Outstanding recorded investment $ 2,199   $ 2,228
Less: allowance for loan losses (307)   (328)
Outstanding recorded investment, net of allowance 1,892   1,900
Unpaid principal balance 2,239   $ 2,266
Average outstanding recorded investment 2,214 $ 1,939  
Finance charge income recognized $ 64 $ 60  
Number of loans classified as TDRs during the period | loan 13,336 16,474  
Recorded investment of loans classified as TDRs during the period $ 251 $ 287