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, 2023		Dec. 31, 2022		Dec. 31, 2021
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning		$ 122		$ 159
Service cost		5		6		$ 8
Interest cost		5		2		2
Changes in actuarial assumptions and other		(4)		(27)
Settlements and curtailments		0		(3)
Benefits paid		(3)		(1)
Adjustments for foreign currency translation		5		(13)
Other––net		(1)		(1)
Benefit obligation, ending		129		122		159
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning		78	[1]	92
Actual return on plan assets		3		(4)
Company contributions		6		4
Settlements and curtailments		0		(3)
Benefits paid		(3)		(1)
Adjustments for foreign currency translation		2		(9)
Other––net		0		(1)
Fair value of plan assets, ending		86	[1]	78	[1]	$ 92
Funded status—Projected benefit obligation in excess of plan assets at end of year	[2]	$ (43)		$ (44)

[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] .