Unrealized Tax Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2021	Jan. 01, 2020	Jan. 01, 2019
Income Tax Disclosure [Abstract]
Upper bound of decrease in unrecognized tax benefit that is reasonably possible	$ 2
Unrecognized Tax Benefits, Income Tax Penalties Expense	0	$ 0	$ 0
Unrecognized tax benefit — Permanent tax positions	9	7
Unrecognized tax benefit — Temporary tax positions	2	2
Total unrecognized tax benefit	11	9	12	$ 9	$ 12	$ 10
Additions based on tax positions related to the current year	2	2	1
Additions for tax positions of prior years	0	6	1
Reductions for tax positions of prior years	0	(11)	0
NOL and tax credit carryforwards	(11)	(8)
Payable for interest related to unrecognized tax benefits	0	0	(1)	$ 0	$ (1)	$ (1)
Unrecognized Tax Benefits, Interest on Income Taxes Expense	$ 0	$ 1	$ 0