Retirement Plans - Components of Net Periodic Benefit Costs (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020
Retirement Benefits [Abstract]
Service cost	$ 0	$ 1	$ 2	$ 2
Interest cost	8	8	22	23
Expected return on plan assets	(14)	(14)	(41)	(40)
Amortization of net loss	0	0	0	1
Net periodic pension benefit credits	$ (6)	$ (5)	$ (17)	$ (14)