Allowance for Current Expected Credit Loss (CECL) (Tables)

9 Months Ended

Sep. 30, 2020

Allowance for Credit Loss [Abstract]

Allowance for Credit Loss

	Reserve for Notes and Other Receivables and Loans		Liabilities for Off- Balance Sheet Assets
	Trade	Other		Total
	(millions of dollars)
Balance at December 31, 2019	34	469	—	503
Cumulative effect of accounting change	52	45	12	109
Current period provision	—	(4)	(1)	(5)
Write-offs charged against the allowance	(1)	(1)	—	(2)
Other	—	(10)	—	(10)
Balance at September 30, 2020	85	499	11	595