RESTRUCTURING ACTIVITIES (Consolidated Amounts) (Details) (SCAE Plan, USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	22 Months Ended	30 Months Ended
	Nov. 23, 2014	Nov. 23, 2014	Nov. 23, 2014	Nov. 23, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				$ 217.6
Restructuring and Related Cost, Incurred Cost	17.4	38.5	150.6
Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				51.7
Restructuring and Related Cost, Incurred Cost	7.8	17.0	33.2
Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				8.6
Restructuring and Related Cost, Incurred Cost	(0.5)	3.8	8.6
Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				66.2
Restructuring and Related Cost, Incurred Cost	4.7	10.7	44.2
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				91.1
Restructuring and Related Cost, Incurred Cost	5.4	7.0	64.6
Multi-employer pension costs
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				11.4
Restructuring and Related Cost, Incurred Cost		0.2	11.4
Multi-employer pension costs | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost		0	0
Multi-employer pension costs | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost		0	0
Multi-employer pension costs | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost		0	0
Multi-employer pension costs | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				11.4
Restructuring and Related Cost, Incurred Cost		0.2	11.4
Other cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				5.7
Restructuring and Related Cost, Incurred Cost		0.6	2.0
Other cost of goods sold | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				3.3
Restructuring and Related Cost, Incurred Cost		0	0.8
Other cost of goods sold | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost		0	0
Other cost of goods sold | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				2.4
Restructuring and Related Cost, Incurred Cost		0.6	1.2
Other cost of goods sold | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost		0	0
Total cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				17.1
Restructuring and Related Cost, Incurred Cost		0.8	13.4
Total cost of goods sold | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				3.3
Restructuring and Related Cost, Incurred Cost		0	0.8
Total cost of goods sold | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost		0	0
Total cost of goods sold | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				2.4
Restructuring and Related Cost, Incurred Cost		0.6	1.2
Total cost of goods sold | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				11.4
Restructuring and Related Cost, Incurred Cost		0.2	11.4
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				76.4
Restructuring and Related Cost, Incurred Cost	(0.8)	5.7	74.7
Severance and related costs | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				14.4
Restructuring and Related Cost, Incurred Cost	0	1.4	14.1
Severance and related costs | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				8.6
Restructuring and Related Cost, Incurred Cost	(0.5)	3.8	8.6
Severance and related costs | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				9.4
Restructuring and Related Cost, Incurred Cost	(0.2)	0.5	9.4
Severance and related costs | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				44.0
Restructuring and Related Cost, Incurred Cost	(0.1)	0	42.6
Asset impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				6.5
Restructuring and Related Cost, Incurred Cost	0.4	2.3	6.5
Asset impairment | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0.3
Restructuring and Related Cost, Incurred Cost	0	0	0.3
Asset impairment | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost	0	0	0
Asset impairment | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				5.8
Restructuring and Related Cost, Incurred Cost	0	1.9	5.8
Asset impairment | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0.4
Restructuring and Related Cost, Incurred Cost	0.4	0.4	0.4
Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				50.9
Restructuring and Related Cost, Incurred Cost	9.1	17.8	35.9
Accelerated depreciation | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				25.5
Restructuring and Related Cost, Incurred Cost	6.4	13.9	16.3
Accelerated depreciation | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost	0	0	0
Accelerated depreciation | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				22.3
Restructuring and Related Cost, Incurred Cost	2.1	2.6	17.7
Accelerated depreciation | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				3.1
Restructuring and Related Cost, Incurred Cost	0.6	1.3	1.9
Other selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				66.7
Restructuring and Related Cost, Incurred Cost	8.7	11.9	20.1
Other selling, general and administrative expenses | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				8.2
Restructuring and Related Cost, Incurred Cost	1.4	1.7	1.7
Other selling, general and administrative expenses | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				0
Restructuring and Related Cost, Incurred Cost	0	0	0
Other selling, general and administrative expenses | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				26.3
Restructuring and Related Cost, Incurred Cost	2.8	5.1	10.1
Other selling, general and administrative expenses | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				32.2
Restructuring and Related Cost, Incurred Cost	4.5	5.1	8.3
Total selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				200.5
Restructuring and Related Cost, Incurred Cost	17.4	37.7	137.2
Total selling, general and administrative expenses | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				48.4
Restructuring and Related Cost, Incurred Cost	7.8	17.0	32.4
Total selling, general and administrative expenses | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				8.6
Restructuring and Related Cost, Incurred Cost	(0.5)	3.8	8.6
Total selling, general and administrative expenses | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				63.8
Restructuring and Related Cost, Incurred Cost	4.7	10.1	43.0
Total selling, general and administrative expenses | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				79.7
Restructuring and Related Cost, Incurred Cost	$ 5.4	$ 6.8	$ 53.2