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]
Provision for income taxes	$ 32	$ 14	$ 42	$ 22
Effective tax provision rate	21.50%	18.90%	20.60%	18.70%
Unrecognized tax benefits, recognition period			12 months