Components of Net Periodic Pension (Benefit) Cost (Detail) - United Kingdom - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 8	$ 4	$ 4
Expected return on plan assets	$ (8)	(6)	(6)
Settlement gain			(1)
Net periodic benefit		$ (2)	$ (3)