Share-Based Payments (Tables)

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Components of Share-based Compensation Expense

The components of share-based compensation expense are as follows:

	Three Months Ended
	March 31,
(MILLIONS OF DOLLARS)	2021		2020
Stock options / stock appreciation rights	$	2	$	3
RSUs / DSUs	8		8
PSUs	3		5
Share-based compensation expense—total(a)	$	13	$	16

(a) Amounts capitalized to inventory were insignificant for the three months ended March 31, 2021 and 2020.