Unrealized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2021	Jan. 01, 2020	Dec. 31, 2019	Jan. 01, 2019
Statement of Financial Position [Abstract]
Unrecognized tax benefit — Permanent tax positions	$ 5	$ 4
Unrecognized tax benefit — Temporary tax positions	4	4
Balance at Dec. 31	9	8	$ 7	$ 8	$ 7		$ 5
Additions based on tax positions related to the current year	1	1	1
Additions for tax positions of prior years	0	0	5
Reductions for tax positions of prior years	0	0	(4)
NOL and tax credit carryforwards	(8)	(7)
Decrease in Unrecognized Tax Benefits is Reasonably Possible	6
Payable for interest related to unrecognized tax benefits	0	(1)	(1)			$ 1
Unrecognized Tax Benefits, Interest on Income Taxes Expense	1	0	$ (2)
Unrecognized Tax Benefits, Income Tax Penalties Expense	$ 0	$ 0