Finance Receivables - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable
Finance lease revenue	$ 112	$ 106
Financing receivable, average term	51 months
Financing receivable, average remaining term	27 months
Period after which unpaid installments are considered as past due	30 days
Payment Deferral
Accounts, Notes, Loans and Financing Receivable
Financing receivable, modified in period, maximum period	4 months
Extended Maturity
Accounts, Notes, Loans and Financing Receivable
Financing receivable, modified in period, maximum period	6 months
Dealer
Accounts, Notes, Loans and Financing Receivable
Financing receivable, gross write-offs	$ 0
Financing receivable, nonaccrual	0		$ 0
Financing receivable, modified in period	0	0
Dealer | Latin America
Accounts, Notes, Loans and Financing Receivable
Financing receivable, gross write-offs		47
Caterpillar Purchased Receivables
Accounts, Notes, Loans and Financing Receivable
Financing receivable, modified in period	0	0
Customer
Accounts, Notes, Loans and Financing Receivable
Financing receivable, gross write-offs	3	0
Financing receivable, nonaccrual	173		176
Financing receivable, modified in period	$ 6	$ 3
Financing receivable, modified in period, percentage	0.03%	0.01%
Customer | Latin America
Accounts, Notes, Loans and Financing Receivable
Financing receivable, gross write-offs	$ 1	$ 0
Financing receivable, nonaccrual	$ 21		$ 24