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Derivative Financial Instruments - Balance Sheet Location of Cumulative Basis Adjustments (Details) - Fair Value Hedges - GM Financial - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Derivatives, Fair Value [Line Items] |  |
Carrying Amount of Hedged Items | $ 28,319 | $ 24,964
Cumulative Amount of Fair Value Hedging Adjustments | 781 | (226)
Short-term Debt |  |
Derivatives, Fair Value [Line Items] |  |
Carrying Amount of Hedged Items | 3,048 | 1,338
Cumulative Amount of Fair Value Hedging Adjustments | 2 | (1)
Long-term Debt |  |
Derivatives, Fair Value [Line Items] |  |
Carrying Amount of Hedged Items | 25,271 | 23,626
Cumulative Amount of Fair Value Hedging Adjustments | $ 779 | (225)
Cumulative fair value adjustment on discontinued hedging relationships |  | $ 246

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- Definition Derivative Liabilities, Fair Value Adjustment on Discontinued Hedging Relationships + References No definition available. + Details
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- Definition Amount of liability hedged in fair value hedging relationship. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959 + Details
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