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Components of Net Periodic Pension Cost (Benefit) (Detail) - Pension Benefits - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 27, 2025
Sep. 28, 2024
Sep. 27, 2025
Sep. 28, 2024
North America        
Defined Benefit Plan Disclosure [Line Items]        
Interest cost $ 7 $ 8 $ 21 $ 22
Expected return on plan assets (6) (8) (19) (22)
Amortization of (gains) loss       (1)
Net periodic pension cost (benefit) 1   2 (1)
United Kingdom        
Defined Benefit Plan Disclosure [Line Items]        
Interest cost 2 1 6 5
Expected return on plan assets (2) (1) (5) (4)
Amortization of (gains) loss 1 1 2 2
Net periodic pension cost (benefit) $ 1 $ 1 $ 3 $ 3