GM Financial Receivables, Net Summary of Finance Receivables, Net (Details) - GM Financial [Member] - USD ($)
$ in Millions |
3 Months Ended |
|
|
|
Mar. 31, 2016 |
Dec. 31, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
| Finance Receivables [Line Items] |
|
|
|
|
| Finance Receivables |
$ 39,213
|
$ 37,333
|
|
|
| Less: Allowance for Loan Losses |
(843)
|
(782)
|
$ (728)
|
$ (695)
|
| GM Financial Receivables, Net |
38,370
|
36,551
|
|
|
| Fair value of GM Financial receivables, net |
38,678
|
36,707
|
|
|
| Allowance for loan losses classified as current |
(661)
|
(601)
|
|
|
| Retail Finance Receivables [Member] |
|
|
|
|
| Finance Receivables [Line Items] |
|
|
|
|
| Finance Receivables |
30,272
|
29,124
|
|
|
| Less: Allowance for Loan Losses |
(796)
|
(735)
|
|
|
| GM Financial Receivables, Net |
29,476
|
28,389
|
|
|
| Commercial Finance Receivables [Member] |
|
|
|
|
| Finance Receivables [Line Items] |
|
|
|
|
| Finance Receivables |
8,941
|
8,209
|
|
|
| Less: Allowance for Loan Losses |
(47)
|
(47)
|
|
|
| GM Financial Receivables, Net |
$ 8,894
|
$ 8,162
|
|
|
| Commercial Finance Receivables [Member] | Level 2 [Member] |
|
|
|
|
| Finance Receivables [Line Items] |
|
|
|
|
| Maximum Maturity Period for Finance Receivables |
1 year
|
|
|
|