Financial Instruments - Additional Information (Detail) - USD ($) $ in Billions		Mar. 23, 2019	Dec. 29, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Debt Instrument, Fair Value Disclosure		$ 33.0	$ 32.0
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	[1]	1.1	1.1
Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	[1]	2.0	2.0
Interest rate derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	[1]	$ 7.5	$ 10.5
Interest rate derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		19.00%	29.00%
Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	[1]	$ 2.0	$ 0.9

[1] In billions.