Financial Instruments - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	6 Months Ended
		Jun. 17, 2017	Jun. 17, 2017	Jun. 16, 2018	Dec. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Sale of Equity Investments		$ 95	$ 95
Gain (Loss) on Sale of Equity Investments, after tax		$ 85
Gain (Loss) on Sale of Equity Investments, net of tax, per share amount		$ 0.06
Debt Instrument, Fair Value Disclosure				$ 41,000	$ 41,000
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	[1]			900	900
Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	[1]			1,800	1,600
Interest rate derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	[1]			$ 11,900	$ 14,200
Interest rate derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate				45.00%	43.00%
Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	[1]			$ 1,400	$ 1,500

[1] In billions.