Finance Receivables (Details 3) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Financing Receivable, Allowance for Credit Losses
Beginning Balance	$ 281	$ 348	$ 331	$ 346
Write-offs	(33)	(21)	(103)	(41)
Recoveries	15	13	30	23
Financing Receivable, Credit Loss, Expense (Reversal)	15	(21)	24	(10)
Financing Receivable, Allowance for Credit Losses, Other	(24)	1	(28)	2
Ending Balance	254	320	254	320
Customer
Financing Receivable, Allowance for Credit Losses
Beginning Balance	273	278	276	277
Write-offs	(33)	(21)	(56)	(41)
Recoveries	15	13	30	23
Financing Receivable, Credit Loss, Expense (Reversal)	15	(6)	24	4
Financing Receivable, Allowance for Credit Losses, Other	(24)	1	(28)	2
Ending Balance	246	265	246	265
Dealer
Financing Receivable, Allowance for Credit Losses
Beginning Balance	4	65	51	65
Write-offs	0	0	(47)	0
Recoveries	0	0	0	0
Financing Receivable, Credit Loss, Expense (Reversal)	0	(15)	0	(15)
Financing Receivable, Allowance for Credit Losses, Other	0	0	0	0
Ending Balance	4	50	4	50
Caterpillar Purchased Receivables
Financing Receivable, Allowance for Credit Losses
Beginning Balance	4	5	4	4
Write-offs	0	0	0	0
Recoveries	0	0	0	0
Financing Receivable, Credit Loss, Expense (Reversal)	0	0	0	1
Financing Receivable, Allowance for Credit Losses, Other	0	0	0	0
Ending Balance	$ 4	$ 5	$ 4	$ 5