Employee Retirement Plans (Details) - USD ($) $ in Millions		12 Months Ended
	Aug. 19, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		$ 478	$ 506
Defined Benefit Plan, Benefit Obligation		(502)	(532)	$ (488)
Defined Benefit Plan, Plan Assets, Amount		336	355	332
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position		166	177
Defined Benefit Plan, Acquired and Established Plan Changes, Plan Assets		1	0
Defined Benefit Plan, Acquired and Established Plan Changes, Plan Assets		4	0
Defined Benefit Plan, Service Cost		17	19
Defined Benefit Plan, Interest Cost		3	5
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment		(6)	(5)
pension benefit obligation, benefits paid		(22)	(23)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)		(20)	26
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		5	2
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		(7)	22
Defined Benefit Plan, Plan Assets, Contributions by Employer		12	12
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant		2	2
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		(4)	14
Defined Benefit Plan, Benefit Obligation, Benefits Paid		(22)	(23)
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)		(13)	16
Expense related to matching contributions		118	$ 102	$ 98
Defined Benefit Plan, Expected Future Benefit Payment, Year One		20
Defined Benefit Plan, Expected Future Benefit Payment, Year Two		21
Defined Benefit Plan, Expected Future Benefit Payment, Year Three		16
Defined Benefit Plan, Expected Future Benefit Payment, Year Four		22
Defined Benefit Plan, Expected Future Benefit Payment, Year Five		23
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years		$ 109
Domestic Plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Executive Retirement Plan Discount Rate		2.40%	1.90%
Executive Retirement Plan Rate of Compensation Increase		1.50%	1.50%
U.K. Plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Assumptions used to Determine Expected Return		0.70%	0.10%
Executive Retirement Plan Discount Rate		0.70%	0.10%
Other International Plans
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Assumptions used to Determine Expected Return		2.16%	1.98%
Executive Retirement Plan Discount Rate		0.82%	0.67%
Executive Retirement Plan Rate of Compensation Increase		2.60%	2.40%
Fair Value, Inputs, Level 3 [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)		$ (2)
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		0
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		(5)
Defined Benefit Plan, Benefit Obligation, Benefits Paid		(11)
Other Contract
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Amount		205	$ 223
Other Contract | Fair Value, Inputs, Level 1 [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Other Contract | Fair Value, Inputs, Level 2 [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
Other Contract | Fair Value, Inputs, Level 3 [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Amount		205	223
Executive retirement plan [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		56	54
Defined Benefit Plan, Benefit Obligation		(59)	(58)
Defined Benefit Plan, Plan Assets, Amount		0	0
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position		59	58
International retirement plans [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		214	225
Defined Benefit Plan, Benefit Obligation		(234)	(247)
Defined Benefit Plan, Plan Assets, Amount		130	132
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position		103	115
U.K. Plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Assets for Plan Benefits, Defined Benefit Plan	$ 213
Defined Benefit Plan, Accumulated Benefit Obligation		209	226
Defined Benefit Plan, Benefit Obligation	(216)	(209)	(226)
Defined Benefit Plan, Plan Assets, Amount		205	223
Defined Benefit Plan, Funded (Unfunded) Status of Plan	$ (3)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position		3	3
Executive Retirement Plan Discount Rate	0.40%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets	0.40%
Executive Retirement Plan Rate of Compensation Increase	3.40%
U.K. Plan | Fair Value, Inputs, Level 1 [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
U.K. Plan | Fair Value, Inputs, Level 2 [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
U.K. Plan | Fair Value, Inputs, Level 3 [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined Benefit Plan, Plan Assets, Amount		$ 205	$ 223