Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions		12 Months Ended
	Nov. 19, 2015	May 31, 2017 USD ($)	May 31, 2016 USD ($)	May 31, 2015 USD ($)	Dec. 23, 2015
Significant Accounting Policies [Line Items]
Stock split ratio for 100 percent of stock dividend declared	2
Dividend payable as result of stock split (as a percent)					100.00%
Reserve balances for sales discounts, returns and miscellaneous claims		$ 643	$ 789
Total advertising and promotion expenses		3,341	3,278	$ 3,213
Prepaid advertising and promotion expenses		558	540
Allowance for uncollectible accounts receivable		19	43
Increase in non-current assets		$ 2,787	2,422
Minimum | Building
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		2 years
Minimum | Leasehold improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		2 years
Minimum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		2 years
Minimum | Software and Software Development Costs
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		2 years
Minimum | Land Improvements [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		2 years
Maximum | Building
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		40 years
Maximum | Leasehold improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		40 years
Maximum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		15 years
Maximum | Software and Software Development Costs
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		12 years
Maximum | Land Improvements [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)		40 years
Class B Common Stock
Significant Accounting Policies [Line Items]
Stock split ratio for 100 percent of stock dividend declared	2
Class A Convertible Common Stock
Significant Accounting Policies [Line Items]
Stock split ratio for 100 percent of stock dividend declared	2
Prepaid expenses and other current assets
Significant Accounting Policies [Line Items]
Prepaid advertising and promotion expenses		$ 311	272
Deferred income taxes and other assets
Significant Accounting Policies [Line Items]
Prepaid advertising and promotion expenses		247	268
Accounting Standards Update 2015-03 | Deferred income taxes and other assets
Significant Accounting Policies [Line Items]
Debt issuance costs			$ (17)
Accounting Standards Update 2015-03 | Long-term debt
Significant Accounting Policies [Line Items]
Debt issuance costs		$ 17