Income Taxes Unrecognized Tax Benefit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2024	Jan. 01, 2023	Jan. 01, 2022
Income Tax [Line Items]
Unrecognized tax benefit — Permanent tax positions	$ 43	$ 41
Unrecognized tax benefit — Temporary tax positions	0	0
Total unrecognized tax benefit	43	41	$ 67	$ 41	$ 67	$ 58
Additions based on tax positions related to the current year	5	5	7
Additions for tax positions of prior years	2	1	6
Reductions for tax positions of prior years	3	29	1
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	0	(1)	(1)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	(2)	(2)	(2)
NOL and tax credit carryforwards	35	35
Upper bound of decrease in unrecognized tax benefit that is reasonably possible	2
Payable for interest related to unrecognized tax benefits at Jan. 1	(2)	(1)	(4)	$ (1)	$ (4)	$ (3)
Interest (expense) benefit related to unrecognized tax benefits	(1)	3	(1)
Unrecognized Tax Benefits, Income Tax Penalties Expense	0	$ 0	$ 0
Deferred Tax and Other Liabilities, Noncurrent	$ 41