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Components of Net Periodic Pension (Benefit) Cost (Detail) - United Kingdom - USD ($) $ in Millions	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 4	$ 5	$ 6
Expected return on plan assets	(6)	$ (5)	(7)
Settlement gain	(1)
Net periodic cost (benefit)	$ (3)		$ (1)

X

- Definition

Amount of (increase) decrease to benefit obligation of defined benefit plan from remeasurement due to settlement. Excludes decrease to benefit obligation for settlement payment.

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Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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