Pension Other (Details) - USD ($) $ in Millions		6 Months Ended		12 Months Ended
		Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2018	Jul. 01, 2019
non-qualified benefit plans, other long-term liabilities		$ 5		$ 4
German Early Retirement Program [Member]
Postemployment Benefits Liability		2		3
Defined Contribution Plan, Cost		1	$ 1	1	$ 1
European Jubilee Plan [Member]
Postemployment Benefits Liability		4		4
Pension Plan [Member]
Defined Contribution Plan, Cost		6	7	14	17
Pension Plan [Member] | UNITED STATES
Pension and Other Postretirement Benefits Cost (Reversal of Cost)		(2)	1	7	7
Defined Benefit Plan, Benefit Obligation		225		232	216	$ 228
Pension Plan [Member] | Foreign Plan [Member]
Pension and Other Postretirement Benefits Cost (Reversal of Cost)	[1]	15	44	9	(12)
Defined Benefit Plan, Benefit Obligation		688		804	583	678
Pension Plan [Member] | Discontinued Operations | UNITED STATES
Pension and Other Postretirement Benefits Cost (Reversal of Cost)		0	0	0	0
Defined Benefit Plan, Benefit Obligation		0		0		0
Pension Plan [Member] | Discontinued Operations | Foreign Plan [Member]
Pension and Other Postretirement Benefits Cost (Reversal of Cost)		1	$ 6	5	$ 1
Defined Benefit Plan, Benefit Obligation		$ 29		$ 36		$ 29

[1] Net expense (benefit) related to the Company’s Held for Sale Business was $5, $<1, $6 and $1 for the year ended December 31, 2020, the Successor period from July 2, 2019 to December 31, 2019, the Predecessor period from January 1, 2019 through July 1, 2020 and the year ended December 31, 2018, respectively, and is included in the table above.