RESTRUCTURING ACTIVITIES (Consolidated Amounts) (Details) - SCAE Plan - USD ($) $ in Millions	3 Months Ended		31 Months Ended
	Aug. 30, 2015	Aug. 24, 2014	Aug. 30, 2015
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	$ 144.0		$ 144.0
Recognized pre-tax expense	17.4	$ 15.5	96.3
Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	93.9		93.9
Recognized pre-tax expense	6.6		59.9
Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	8.1		8.1
Recognized pre-tax expense	0.1		8.1
Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	42.0		42.0
Recognized pre-tax expense	10.7		28.3
Multi-employer pension costs
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.5		1.5
Recognized pre-tax expense			1.5
Multi-employer pension costs | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.5		1.5
Recognized pre-tax expense			1.5
Multi-employer pension costs | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense			0.0
Multi-employer pension costs | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense			0.0
Accelerated depreciation related to cost of goods sold
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	40.9		40.9
Recognized pre-tax expense	3.7		26.2
Accelerated depreciation related to cost of goods sold | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	39.3		39.3
Recognized pre-tax expense	$ 3.6		$ 25.1
Accelerated depreciation related to cost of goods sold | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense
Recognized pre-tax expense	$ 0.0		$ 0.0
Accelerated depreciation related to cost of goods sold | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.6		1.6
Recognized pre-tax expense	0.1		1.1
Other cost of goods sold
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	6.3		6.3
Recognized pre-tax expense	0.1		2.2
Other cost of goods sold | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	6.3		6.3
Recognized pre-tax expense	0.1		2.2
Other cost of goods sold | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense	0.0		0.0
Other cost of goods sold | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense	0.0		0.0
Total cost of goods sold
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	48.7		48.7
Recognized pre-tax expense	3.8		29.9
Total cost of goods sold | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	47.1		47.1
Recognized pre-tax expense	3.7		28.8
Total cost of goods sold | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense	0.0		0.0
Total cost of goods sold | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.6		1.6
Recognized pre-tax expense	0.1		1.1
Severance and related costs (recoveries)
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	45.7		45.7
Recognized pre-tax expense	4.5		41.8
Severance and related costs (recoveries) | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	26.2		26.2
Recognized pre-tax expense	0.8		22.3
Severance and related costs (recoveries) | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	8.1		8.1
Recognized pre-tax expense	0.1		8.1
Severance and related costs (recoveries) | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	11.4		11.4
Recognized pre-tax expense	3.6		11.4
Fixed asset impairment / Net gain on disposal
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.0		1.0
Recognized pre-tax expense	(0.1)		1.0
Fixed asset impairment / Net gain on disposal | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.0		1.0
Recognized pre-tax expense	(0.1)		1.0
Fixed asset impairment / Net gain on disposal | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense	0.0		0.0
Fixed asset impairment / Net gain on disposal | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense	0.0		0.0
Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.8		0.8
Recognized pre-tax expense			0.8
Accelerated depreciation | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense			0.0
Accelerated depreciation | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense			0.0
Accelerated depreciation | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.8		0.8
Recognized pre-tax expense			0.8
Other selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	47.8		47.8
Recognized pre-tax expense	9.2		22.8
Other selling, general and administrative expenses | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	19.6		19.6
Recognized pre-tax expense	2.2		7.8
Other selling, general and administrative expenses | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0		0.0
Recognized pre-tax expense	0.0		0.0
Other selling, general and administrative expenses | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	28.2		28.2
Recognized pre-tax expense	7.0		15.0
Total selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	95.3		95.3
Recognized pre-tax expense	13.6		66.4
Total selling, general and administrative expenses | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	46.8		46.8
Recognized pre-tax expense	2.9		31.1
Total selling, general and administrative expenses | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	8.1		8.1
Recognized pre-tax expense	0.1		8.1
Total selling, general and administrative expenses | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	40.4		40.4
Recognized pre-tax expense	$ 10.6		$ 27.2