Variable Interest Entities Reflected on Condensed Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	Aug. 26, 2012	May 27, 2012	Aug. 28, 2011	May 29, 2011
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 116.5	$ 103.0	$ 1,095.2	$ 972.4
Receivables, less allowance for doubtful accounts	963.9	924.8
Inventories	2,065.7	1,869.6
Prepaid expenses and other current assets	329.8	321.4
Property, plant and equipment, net	2,784.5	2,741.9
Goodwill	4,166.6	4,015.4
Brands, trademarks and other intangibles, net	1,221.2	1,191.5
Total assets	11,928.6	11,441.9
Current installments of long-term debt	23.2	38.1
Accounts payable	1,224.7	1,190.3
Accrued payroll	147.2	177.2
Other accrued liabilities	927.2	779.6
Other noncurrent liabilities (minority interest)	1,824.4	1,822.1
Total liabilities	7,278.4	6,905.9
Variable Interest Entities
Variable Interest Entity [Line Items]
Cash and cash equivalents	11.5	10.2
Receivables, less allowance for doubtful accounts	18.3	20.9
Inventories	1.6	1.6
Prepaid expenses and other current assets	0.4	0.2
Property, plant and equipment, net	67.3	82.9
Goodwill	18.8	18.8
Brands, trademarks and other intangibles, net	8.1	8.3
Total assets	126.0	142.9
Current installments of long-term debt	30.6	30.1
Accounts payable	14.4	17.9
Accrued payroll	0.6	0.5
Other accrued liabilities	1.0	1.0
Other noncurrent liabilities (minority interest)	29.7	28.9
Total liabilities	$ 76.3	$ 78.4