Cat Financial Financing Activities (Details-Allowance for credit losses) - Finance Receivables - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Allowance for Credit Loss Activity
Beginning balance	$ 333	$ 475
Write-offs	(20)	(34)
Recoveries	12	10
Provision for credit losses	25	(10)
Other	2	(4)
Ending balance	352	437
Finance Receivables
Total Finance Receivables	22,011	21,736
Customer
Allowance for Credit Loss Activity
Beginning balance	251	431
Write-offs	(20)	(34)
Recoveries	12	10
Provision for credit losses	26	(10)
Other	2	(4)
Ending balance	271	393
Finance Receivables
Total Finance Receivables	20,289	19,103	$ 20,135
Dealer
Allowance for Credit Loss Activity
Beginning balance	82	44
Write-offs	0	0
Recoveries	0	0
Provision for credit losses	(1)	0
Other	0	0
Ending balance	81	44
Finance Receivables
Total Finance Receivables	$ 1,722	$ 2,633