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GM Financial Receivables and Transactions - Commercial Finance Receivables Credit Quality Indicators (Details) - GM Financial - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Finance Receivables | $ 53,900 | $ 52,844
Commercial Finance Receivables |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Finance Receivables | 11,671 | 12,276
Commercial Finance Receivables | Group I Dealers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Finance Receivables | 1,942 | 2,192
Commercial Finance Receivables | Group II Dealers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Finance Receivables | 4,552 | 4,399
Commercial Finance Receivables | Group III Dealers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Finance Receivables | 3,711 | 4,064
Commercial Finance Receivables | Group IV Dealers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Finance Receivables | 968 | 1,116
Commercial Finance Receivables | Group V Dealers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Finance Receivables | 370 | 422
Commercial Finance Receivables | Group VI Dealers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Finance Receivables | $ 128 | $ 83

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- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447 + Details
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