Consolidated Statements of Changes Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid In Capital	Net Former Parent Investment	Accumulated Deficit	Accumulated Other Comprehensive Loss	Non-controlling Interests
Balance at beginning of period at Dec. 31, 2016	$ 1,089.0	$ 0.0	$ 0.0	$ 877.0	$ 0.0	$ (29.0)	$ 242.0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net loss	(344.0)			(217.0)			(127.0)
Net change in cash flow hedges	(9.0)					(9.0)
Foreign currency translation	37.0					30.0	7.0
Net transfers from Former Parent	184.0			184.0
Balance at end of period at Dec. 31, 2017	957.0	0.0	0.0	844.0	0.0	(8.0)	122.0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net loss	(294.0)			(95.0)	(181.0)		(19.0)
Net change in cash flow hedges	1.0					1.0
Foreign currency translation	(10.0)					(9.0)	(1.0)
Pension liability net of tax	(2.0)					(3.0)	1.0
Reclassification of Former Parent's net investment and issuance of ordinary shares in connection with separation	19.0	87.0	1,935.0	(2,003.0)
Stock based compensation expense	3.0		3.0
Net transfers from Former Parent	1,252.0			1,253.0			(1.0)
Balance at end of period at Dec. 31, 2018	1,927.0	87.0	1,938.0	0.0	(181.0)	(19.0)	101.0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net loss	(522.0)				(500.0)		(22.0)
Foreign currency translation	(24.0)					(24.0)
Pension liability net of tax	(1.0)					(1.0)
Stock based compensation expense	5.0		5.0
Issuance of common stock	403.0	24.0	379.0
Purchase of minority interest	0.0		(14.0)				14.0
Equity component of issuance of convertible notes, net of taxes	35.0		35.0
Dividend	(5.0)						(5.0)
Balance at end of period at Dec. 31, 2019	$ 1,818.0	$ 111.0	$ 2,343.0	$ 0.0	$ (681.0)	$ (44.0)	$ 89.0