Income Taxes Reconciliation of (Benefit) Provision for Income Taxes from Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Income Tax Disclosure [Abstract]
Federal income taxes computed at statutory rate	$ (62)	$ 107	$ 104
State income taxes, net of federal income tax benefit	(10)	24	20
Stock-based compensation	1	(4)	(6)
Non-deductible expenses	7	4	3
Change in the valuation allowance for deferred tax assets	(1)	6	1
Net operating loss expirations	3	0	3
Tax credits	(3)	(10)	(6)
Change in unrecognized tax benefits	(3)	(1)	(21)
Change in U.S. federal statutory tax rate	0	0	(8)
Other	0	0	(1)
Total income tax (benefit) provision	$ (68)	$ 126	$ 89