Retirement Plans Components of Net Periodic Pension and Other Postretirement Benefit Costs (Credits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Settlement	$ 124	$ 0	$ 0
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	2	3
Interest cost	17	38	30
Expected return on plan assets	(17)	(47)	(52)
Amortization of net loss	5	3	0
Net periodic pension benefit (credits) costs	$ 131	$ (4)	$ (19)