Unrealized Tax Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2023	Jan. 01, 2022	Jan. 01, 2021
Income Tax Disclosure [Abstract]
Upper bound of decrease in unrecognized tax benefit that is reasonably possible	$ 4
Unrecognized Tax Benefits, Income Tax Penalties Expense	0
Unrecognized tax benefit — Permanent tax positions	12	$ 11
Unrecognized tax benefit — Temporary tax positions	0	2
Total unrecognized tax benefit	12	13	$ 11	$ 13	$ 11	$ 9
Additions based on tax positions related to the current year	2	2	2
Reductions for tax positions of prior years	(3)	0	$ 0
NOL and tax credit carryforwards	$ (11)	$ (12)