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GM Financial Receivables Retail Finance Receivables Delinquencies and TDRs (Details) - GM Financial [Member] - USD ($) $ in Millions | Jun. 30, 2017 | Dec. 31, 2016 | Jun. 30, 2016
--- | --- | --- | ---
Delinquent Contracts [Abstract] |  |  |
Allowance for loan losses - TDRs | $ 310 | $ 280 |
Retail Finance Receivables [Member] |  |  |
Financing Receivable, Recorded Investment, Additional Information [Abstract] |  |  |
Retail finance receivables, nonaccrual status | 772 | 798 |
Delinquent Contracts [Abstract] |  |  |
Past Due Amount | $ 1,583 |  | $ 1,556
Percent of Contractual Amount Due | 5.10% |  | 6.40%
Finance receivables classified as TDRs | $ 2,000 | 1,900 |
Allowance for loan losses - TDRs | 306 | $ 276 |
31-to-60 days delinquent [Member] | Retail Finance Receivables [Member] |  |  |
Delinquent Contracts [Abstract] |  |  |
Past Due Amount | $ 1,076 |  | $ 1,055
Percent of Contractual Amount Due | 3.40% |  | 4.30%
Greater-than-60 days delinquent [Member] | Retail Finance Receivables [Member] |  |  |
Delinquent Contracts [Abstract] |  |  |
Past Due Amount | $ 464 |  | $ 454
Percent of Contractual Amount Due | 1.50% |  | 1.90%
Total finance receivables more than 30 days delinquent [Member] | Retail Finance Receivables [Member] |  |  |
Delinquent Contracts [Abstract] |  |  |
Past Due Amount | $ 1,540 |  | $ 1,509
Percent of Contractual Amount Due | 4.90% |  | 6.20%
In repossession [Member] | Retail Finance Receivables [Member] |  |  |
Delinquent Contracts [Abstract] |  |  |
Past Due Amount | $ 43 |  | $ 47
Percent of Contractual Amount Due | 0.20% |  | 0.20%
North America [Member] | Retail Finance Receivables [Member] |  |  |
Financing Receivable, Recorded Investment, Additional Information [Abstract] |  |  |
Percentage of receivables with sub-prime credit scores | 41.00% | 48.00% |
Sub-prime FICO score | 620 | 620 |

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- Definition Sub-prime loans as percentage of the total loans. + References No definition available. + Details
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- Definition The FICO score used to separate sub-prime from prime loans. The loans with a borrower that has less then this score will be considered as sub-prime. + References No definition available. + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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