Cat Financial Financing Activities (Details-Allowance for credit losses) - Finance Receivables - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Allowance for Credit Loss Activity
Beginning balance	$ 342	$ 333
Write-offs	(20)	(20)
Recoveries	10	12
Provision for credit losses	10	25
Other	1	2
Ending balance	343	352
Total Finance Receivables	21,294	22,011
Customer
Allowance for Credit Loss Activity
Beginning balance	277	251
Write-offs	(20)	(20)
Recoveries	10	12
Provision for credit losses	10	26
Other	1	2
Ending balance	278	271
Total Finance Receivables	19,573	20,289
Dealer
Allowance for Credit Loss Activity
Beginning balance	65	82
Write-offs	0	0
Recoveries	0	0
Provision for credit losses	0	(1)
Other	0	0
Ending balance	65	81
Total Finance Receivables	$ 1,721	$ 1,722