Restructuring Activitties (Details 2) (USD $) In Millions	12 Months Ended	24 Months Ended
	May 29, 2011	May 31, 2011
Consumer Foods [Member] | Selling, general and administrative expense [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	$ 9.3	$ 41.6
Consumer Foods [Member] | Selling, general and administrative expense [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	14.5
Consumer Foods [Member] | Other, net [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	6.5	8.1
Consumer Foods [Member] | Other, net [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.7
Consumer Foods [Member] | Severance and related costs [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	2.8	17.0
Consumer Foods [Member] | Severance and related costs [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	5.2
Consumer Foods [Member] | Asset impairment charge [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost		16.5
Consumer Foods [Member] | Asset impairment charge [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	8.6
Consumer Foods [Member] | Cost of goods sold [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	16.3	19.7
Consumer Foods [Member] | Cost of goods sold [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	5.2
Consumer Foods [Member] | Accelerated depreciation [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	15.6	19.0
Consumer Foods [Member] | Accelerated depreciation [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	5.0
Consumer Foods [Member] | Inventory write-offs [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.7	0.7
Consumer Foods [Member] | Inventory write-offs and related costs [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.2
Consumer Foods [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	25.6	61.3
Consumer Foods [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	19.7
Corporate [Member] | Selling, general and administrative expense [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.1	3.6
Corporate [Member] | Other, net [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.1	3.6
Corporate [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.1	3.6
Commercial Foods [Member] | Selling, general and administrative expense [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	10.6
Commercial Foods [Member] | Other, net [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.1
Commercial Foods [Member] | Severance and related costs [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.1
Commercial Foods [Member] | Asset impairment charge [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	10.4
Commercial Foods [Member] | Cost of goods sold [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.3
Commercial Foods [Member] | Inventory write-offs and related costs [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.3
Commercial Foods [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	10.9
Selling, general and administrative expense [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	9.4	45.2
Selling, general and administrative expense [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	25.1
Other, net [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	6.6	11.7
Other, net [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.8
Severance and related costs [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	2.8	17.0
Severance and related costs [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	5.3
Asset impairment charge [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost		16.5
Asset impairment charge [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	19.0
Cost of goods sold [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	16.3	19.7
Cost of goods sold [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	5.5
Accelerated depreciation [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	15.6	19.0
Accelerated depreciation [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	5.0
Inventory write-offs [Member] | 2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.7	0.7
Inventory write-offs and related costs [Member] | Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	0.5
2010 Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	25.7	64.9
Network Optimization Plan [Member]
Summary Of Incurred Restructuring Pre Tax Expenses
Restructuring and Related Cost, Incurred Cost	$ 30.6