Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended
	Nov. 15, 2012	May 31, 2014	May 31, 2013	May 31, 2012	Dec. 24, 2012
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		$ 610	$ 531
Total advertising and promotion expenses		3,031	2,745	2,607
Prepaid advertising and promotion expenses		516	386
Allowance for uncollectible accounts receivable		78	104
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
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)		10 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
Other Noncurrent Assets [Member]
Significant Accounting Policies [Line Items]
Allowance for uncollectible accounts receivable		$ 37	$ 54