Fair Value Disclosures - Fair Value Of Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Carrying Amount
Assets
Finance receivables-net (excluding finance leases)	$ 18,800	$ 17,922
Wholesale inventory receivables-net (excluding finance leases)	3,131	1,931
Carrying Amount \| Sales of Machinery, Power & Energy
Liabilities
Long-term debt (including amounts due within one year)	10,650	10,713
Carrying Amount \| Financial Products
Liabilities
Long-term debt (including amounts due within one year)	29,696	27,103
Carrying amount of assets excluded from measurement at fair value
Assets
Excluded items: Finance leases and failed sale leasebacks, Carrying Value	6,816	7,189
Level 3 \| Fair Value
Assets
Finance receivables-net (excluding finance leases)	18,292	17,648
Wholesale inventory receivables-net (excluding finance leases)	3,038	1,871
Level 2 \| Fair Value \| Sales of Machinery, Power & Energy
Liabilities
Long-term debt (including amounts due within one year)	9,441	10,363
Level 2 \| Fair Value \| Financial Products
Liabilities
Long-term debt (including amounts due within one year)	$ 29,536	$ 27,204

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.

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Period Type:	instant