Income Taxes - Schedule of Reconciliation of the Total Amount of Unrecognized Tax Benefit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Unrecognized tax benefit, beginning of year	$ 45	$ 26	$ 29
Gross increases — tax positions in current period	5	19	10
Reductions — tax positions in prior period	(8)
Settlements			(13)
Unrecognized tax benefit, end of year	$ 42	$ 45	$ 26