Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lease, Cost [Table Text Block]

Supplemental information for operating leases is as follows:

			As of December 31,
(MILLIONS OF DOLLARS, EXCEPT LEASE TERM AND DISCOUNT RATE AMOUNTS)			2021			2020
Supplemental Balance Sheet information for operating leases
Operating lease right of use assets			$	181		$	192
Operating lease liabilities
Operating lease liabilities - current (in Other current liabilities)			$	41		$	40
Operating lease liabilities - noncurrent			151			163
Total operating lease liabilities			$	192		$	203
Weighted-average remaining lease term—operating leases (years)			6.55			6.59
Weighted-average discount rate—operating leases			2.81		%	3.12		%
	Year Ended December 31,
(MILLIONS OF DOLLARS)	2021		2020			2019
Supplemental Income Statement information for operating leases
Operating lease expense	$	50	$	46		$	40
Variable lease payments not included in the measurement of lease liabilities	19		20			21
Short-term lease payments not included in the measurement of lease liabilities	9		7			9
Supplemental Cash Flow information for operating leases
Cash paid for amounts included in the measurement of lease liabilities	$	47	$	42		$	42
Lease obligations obtained in exchange for right-of-use assets (non-cash)	39		47			241

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Future minimum lease payments under non-cancellable operating lease contracts as of December 31, 2021 are as follows:

													Total		Less:
											After		Lease		Imputed
(MILLIONS OF DOLLARS)	2022		2023		2024		2025		2026		2026		Payments		Interest		Total
Maturities	$	46	$	39	$	31	$	23	$	19	$	54	$	212	$	(20)	$	192