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Derivative Financial Instruments - Balance Sheet Location of Cumulative Basis Adjustments (Details) - Fair Value Hedges - Automotive Financing - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Items	$ 24,964	$ 23,315
Cumulative Amount of Fair Value Hedging Adjustments	(226)	(739)
Short-term Debt
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Items	1,338	4,858
Cumulative Amount of Fair Value Hedging Adjustments	(1)	(69)
Long-term Debt
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Items	23,626	18,457
Cumulative Amount of Fair Value Hedging Adjustments	(225)	(670)
Cumulative fair value adjustment on discontinued hedging relationships	$ 246	$ 200

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Derivative Liabilities, Fair Value Adjustment

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- Definition

Derivative Liabilities, Fair Value Adjustment on Discontinued Hedging Relationships

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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 http://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959

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