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Fair Value Disclosures - Fair Value Of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Carrying Amount
Assets
Finance receivables-net (excluding finance leases)	$ 16,420	$ 16,180
Wholesale inventory receivables-net (excluding finance leases)	1,484	1,568
Carrying Amount | Machinery, Energy & Transportation
Liabilities
Long-term debt (including amounts due within one year)	8,647	8,610
Carrying Amount | Financial Products
Liabilities
Long-term debt (including amounts due within one year)	26,487	25,406
Carrying amount of assets excluded from measurement at fair value
Assets
Excluded items: Finance leases and failed sale leasebacks, Carrying Value	6,829	6,769
Level 3 | Fair Value
Assets
Finance receivables-net (excluding finance leases)	16,075	15,788
Wholesale inventory receivables-net (excluding finance leases)	1,437	1,527
Level 2 | Fair Value | Machinery, Energy & Transportation
Liabilities
Long-term debt (including amounts due within one year)	8,101	7,980
Level 2 | Fair Value | Financial Products
Liabilities
Long-term debt (including amounts due within one year)	$ 26,448	$ 25,304

X

- Definition

The amount of outstanding finance receivables including accrued interest and excluding finance leases. Includes both current and noncurrent portions.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Reflects the carrying amount of finance leases and failed sale leasebacks, which are excluded from fair value.

+ References

No definition available.

+ Details

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X

- Definition

The amount of wholesale inventory receivables including accrued interest and excluding finance leases. Includes both current and noncurrent portions.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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- References

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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