Finance Receivables (Details 3) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Losses
Beginning Balance	$ 346	$ 337
Write-offs	(115)	(108)
Recoveries	50	62
Provision for credit losses(1)	47	58
Other	3	(3)
Ending Balance	331	346
Finance Receivables	28,077	26,787
Customer
Financing Receivable, Allowance for Credit Losses
Beginning Balance	277	251
Write-offs	(115)	(108)
Recoveries	50	62
Provision for credit losses(1)	61	75
Other	3	(3)
Ending Balance	276	277
Finance Receivables	21,177	20,353
Dealer
Financing Receivable, Allowance for Credit Losses
Beginning Balance	65	82
Write-offs	0	0
Recoveries	0	0
Provision for credit losses(1)	(14)	(17)
Other	0	0
Ending Balance	51	65
Finance Receivables	2,951	2,137
Caterpillar Purchased Receivables
Financing Receivable, Allowance for Credit Losses
Beginning Balance	4	4
Write-offs	0	0
Recoveries	0	0
Provision for credit losses(1)	0	0
Other	0	0
Ending Balance	4	4
Finance Receivables	$ 3,949	$ 4,297