Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity Attributable to Parent [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

Changes, net of tax, in accumulated other comprehensive loss, excluding noncontrolling interest, follow:

			Currency Translation Adjustments				Benefit Plans		Accumulated Other
	Cash Flow		Net Investment		Other Currency		Actuarial		Comprehensive
(MILLIONS OF DOLLARS)	Hedges		Hedges		Translation Adj		(Losses)/Gains		Loss
Balance, December 31, 2017	$	(3)	$	—	$	(487)	$	(15)	$	(505)
Other comprehensive (loss)/gain, net of tax	(1)		9		(133)		1		(124)
Balance, December 31, 2018	(4)		9		(620)		(14)		(629)
Other comprehensive gain/(loss), net of tax	4		12		(104)		(9)		(97)
Balance, December 31, 2019	—		21		(724)		(23)		(726)
Other comprehensive (loss)/gain, net of tax	(15)		(58)		69		—		(4)
Balance, December 31, 2020	$	(15)	$	(37)	$	(655)	$	(23)	$	(730)