Benefit Plans Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning		$ 164		$ 144
Service cost		8		8		$ 6
Interest cost		2		2		3
Changes in actuarial assumptions and other		(1)		1
Settlements and curtailments		(2)		0
Benefits paid		(2)		(2)
Adjustments for foreign currency translation		(9)		12
Other––net		(1)		(1)
Benefit obligation, ending		159		164		144
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning		85	[1]	72
Actual return on plan assets		11		4
Company contributions		5		5
Settlements and curtailments		(1)		0
Benefits paid		(2)		(2)
Adjustments for foreign currency translation		(5)		6
Other––net		(1)		0
Fair value of plan assets, ending		92	[1]	85	[1]	$ 72
Funded status—Projected benefit obligation in excess of plan assets at end of year	[2]	$ (67)		$ (79)

[1] Fair values are determined based on valuation inputs categorized as Level 1, 2 or 3 (see Note 3. Significant Accounting Policies—Fair Value). Investment plan assets are valued using Level 1 or Level 2 inputs.

[2] .