Finance Receivables - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-offs	$ 322
Retail Finance Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit loss of finance receivables, percentage	3.10%		3.20%
Nonaccrual loans	$ 585		$ 685
Charge-offs	322	$ 275
Commercial Finance Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	0		$ 0
Charge-offs	0
Loan modifications	$ 0

Financing Receivable, Allowance for Credit Loss, Modification of Loans

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- Definition

Percentage of allowance for credit loss to nonaccrual financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (3)

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- Definition

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+ References

No definition available.

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- Definition

Amount of writeoff of financing receivable, charged against allowance for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (d)
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- Definition

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
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-Publisher SEC
-Name Regulation S-K (SK)
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