Unaudited Condensed Consolidated Statements of Change in Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Common Stock	Additional paid in capital	Retained earnings (Accumulated deficit)	Accumulated other comprehensive income (loss)	Noncontrolling interest	Total
Balance at the beginning of period at Dec. 31, 2018	$ 1,713	$ 59	$ (1,188)	$ 82	$ 1	$ 667
Balance at the beginning of period (in shares) at Dec. 31, 2018	59.4
Increase (Decrease) in Shareholders' Equity
Reclassification of APIC due to U.S. Domestication	$ (1,713)	1,713
Common stock issued under employee stock purchase plan		1				1
Common stock issued under employee stock purchase plan (in shares)	0.1
Common stock issued upon vesting or exercise of stock-based compensation awards (shares)	0.1
Equity classified stock-based compensation expense		1				1
Dividends ($0.01 per common share)			(1)			(1)
Comprehensive loss			(57)	(6)		(63)
Balance at the end of period at Mar. 31, 2019		1,774	(1,246)	76	1	605
Balance at the end of period (in shares) at Mar. 31, 2019	59.6
Balance at the beginning of period at Dec. 31, 2019		1,784	(1,082)	59	1	$ 762
Balance at the beginning of period (in shares) at Dec. 31, 2019	59.9					59.9
Increase (Decrease) in Shareholders' Equity
Common stock issued under employee stock purchase plan		2				$ 2
Common stock issued under employee stock purchase plan (in shares)	0.2
Equity classified stock-based compensation expense		4				4
Comprehensive loss			(48)	(63)		(111)
Balance at the end of period at Mar. 31, 2020		$ 1,790	$ (1,130)	$ (4)	$ 1	$ 657
Balance at the end of period (in shares) at Mar. 31, 2020	60.1					60.1