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Variable Interest Entities (Details) - USD ($) $ in Millions | Jun. 30, 2020 | Dec. 31, 2019
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Variable Interest Entity [Line Items] |  |
GM Financial equipment on operating leases, net | $ 37,066 | $ 38,750
GM Financial [Member] |  |
Variable Interest Entity [Line Items] |  |
GM Financial receivables, net of fees – current | 22,851 | 26,601
GM Financial receivables, net of fees – non-current | 28,999 | 26,355
GM Financial short-term debt and current portion of long-term debt | 37,313 | 35,503
GM Financial long-term debt | 54,939 | 53,435
Consolidated VIE [Member] | GM Financial [Member] |  |
Variable Interest Entity [Line Items] |  |
Restricted cash – current | 2,269 | 2,202
Restricted cash – non-current | 401 | 441
GM Financial receivables, net of fees – current | 15,457 | 19,081
GM Financial receivables, net of fees – non-current | 14,009 | 15,921
GM Financial short-term debt and current portion of long-term debt | 24,245 | 23,952
GM Financial long-term debt | 15,961 | 15,819
Consolidated VIE [Member] | GM Financial [Member] | Equipment Leased to Other Party [Member] |  |
Variable Interest Entity [Line Items] |  |
GM Financial equipment on operating leases, net | $ 19,172 | $ 14,464

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