Components of Net Periodic Pension Benefit (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
North America
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 2
Interest cost	9	10
Expected return on plan assets	(11)	(12)
Net periodic pension benefit	(1)
United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	2	2
Expected return on plan assets	$ (2)	(3)
Net periodic pension benefit		$ (1)