Income Taxes - Schedule of Income Taxes (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 (loss) before income tax expense (benefit)	$ 110	$ (117)	$ (129)	$ (350)
Income tax expense (benefit)	$ 37	$ (29)	$ (31)	$ (76)
Effective tax rate	33.40%	24.60%	24.10%	21.70%