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Components of Net Periodic Pension Benefit (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
North America
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 1	$ 3	$ 4
Interest cost	8	10	26	30
Expected return on plan assets	(11)	(12)	(32)	(36)
Net periodic pension benefit	(2)	(1)	(3)	(2)
United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	2	2	5	5
Expected return on plan assets	$ (2)	(3)	(6)	(9)
Net periodic pension benefit		$ (1)	$ (1)	$ (4)

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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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