Receivables - Carrying Amount of Receivables (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Total	$ 13,938	$ 14,088
Retail
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Total	8,692	7,707
Wholesale
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Total	$ 5,246	$ 6,381

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4

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