Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 6	$ 5	$ 4	$ 1
Income (loss) before taxes and equity in earnings of affiliates	$ 59	$ (5)	$ 24	$ (22)
Effective tax rate	10.60%	(94.80%)	17.70%	(2.40%)