Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 26, 2020	Jun. 28, 2019	Jun. 26, 2020	Jun. 28, 2019	Dec. 31, 2019
Lessee Disclosure [Abstract]
Cash paid for operating leases	$ 76	$ 70	$ 151	$ 137
Right-of-use assets obtained in exchange for operating lease liabilities	$ 75	110	$ 161	177
Weighted average remaining lease term in years	4 years		4 years		4 years
Weighted average discount rate	2.90%		2.90%		3.20%
Operating lease, cost	$ 75	70	$ 149	136
Variable lease costs not included in the lease liability	15	13	30	27
Total lease cost	$ 90	$ 83	$ 179	$ 163