Finance Receivables (Details) - USD ($) $ in Millions	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable
Total Finance Receivables	$ 28,528		$ 28,077	$ 27,694
Less: Allowance for credit losses	(254)	$ (281)	(331)	$ (320)	$ (348)	$ (346)
Financing Receivable, after Allowance for Credit Loss, Total	$ 28,274		27,746
Financing Receivable, Weighted Average Term	51 months
Financing Receivable, Weighted Average Remaining Term	27 months
Retail loans
Accounts, Notes, Loans and Financing Receivable
Total Finance Receivables	$ 16,759		16,501
Retail leases
Accounts, Notes, Loans and Financing Receivable
Total Finance Receivables	6,314		6,554
Caterpillar Purchased Receivables
Accounts, Notes, Loans and Financing Receivable
Total Finance Receivables	4,326		3,949
Wholesale loans
Accounts, Notes, Loans and Financing Receivable
Total Finance Receivables	1,126		1,069
Wholesale leases
Accounts, Notes, Loans and Financing Receivable
Total Finance Receivables	$ 3		$ 4