ACCOUNTS RECEIVABLE AND OTHER (Tables)

12 Months Ended

Dec. 31, 2020

Receivables [Abstract]

Schedule of accounts receivable and other

December 31 (millions of dollars)	2020	2019
Trade accounts receivable, net of immaterial allowance for doubtful accounts	36	37
Receivable from affiliates	1	—
Other	3	6
	40	43