Retirement Plans - Components of Net Periodic Benefit Costs (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Retirement Benefits [Abstract]
Service cost	$ 1	$ 1
Interest cost	9	9
Expected return on plan assets	(12)	(13)
Amortization of net loss (gain)	1	1
Net periodic (credits) benefit costs	$ (1)	$ (2)