Accumulated Other Comprehensive Loss - Schedule of Comprehensive Income (Loss) Attributable to Minority Shareholders (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Equity [Abstract]
Net Income (Loss) Attributable to Minority Shareholders	$ 4	$ (7)	$ 10	$ (5)
Other Comprehensive Income (Loss):
Foreign currency translation	1	0	(8)	(9)
Comprehensive Income (Loss) Attributable to Minority Shareholders	$ 3	$ (7)	$ 2	$ (14)