RESTRUCTURING ACTIVITIES (Consolidated Amounts) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended	16 Months Ended
	May 25, 2014	May 25, 2014
Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	$ 23.4
Acquisition-Related Restructuring | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	9.4
Acquisition-Related Restructuring | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	2.5
Acquisition-Related Restructuring | Consumer
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	20.9
SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	83.7
Restructuring and related cost, expected cost		325.0
Restructured and related cost incurred to date	112.1
SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	16.2
Restructuring and related cost, expected cost		94.8
Restructured and related cost incurred to date	16.2
SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	29.2
Restructuring and related cost, expected cost		142.0
Restructured and related cost incurred to date	57.6
SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	4.8
Restructuring and related cost, expected cost		4.8
Restructured and related cost incurred to date	4.8
SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	33.5
Restructuring and related cost, expected cost		83.4
Restructured and related cost incurred to date	33.5
Administrative Efficiency Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	18.7
Administrative Efficiency Restructuring Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	13.8
Administrative Efficiency Restructuring Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	3.9
Administrative Efficiency Restructuring Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	1.0
Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	76.7
Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	59.9
Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0.8
Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	16.0
Multi-employer Pension Cost | SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost		11.2
Restructured and related cost incurred to date	11.2
Multi-employer Pension Cost | SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Multi-employer Pension Cost | SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost		11.2
Restructured and related cost incurred to date	11.2
Multi-employer Pension Cost | SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Multi-employer Pension Cost | SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Other Cost of Goods Sold [Member] | SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	1.4
Restructuring and related cost, expected cost		8.9
Restructured and related cost incurred to date	1.4
Other Cost of Goods Sold [Member] | SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.8
Restructuring and related cost, expected cost		4.6
Restructured and related cost incurred to date	0.8
Other Cost of Goods Sold [Member] | SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Other Cost of Goods Sold [Member] | SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Other Cost of Goods Sold [Member] | SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.6
Restructuring and related cost, expected cost		4.3
Restructured and related cost incurred to date	0.6
Cost of Goods, Total [Member] | SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	1.4
Restructuring and related cost, expected cost		20.1
Restructured and related cost incurred to date	12.6
Cost of Goods, Total [Member] | SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.8
Restructuring and related cost, expected cost		4.6
Restructured and related cost incurred to date	0.8
Cost of Goods, Total [Member] | SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0
Restructuring and related cost, expected cost		11.2
Restructured and related cost incurred to date	11.2
Cost of Goods, Total [Member] | SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Cost of Goods, Total [Member] | SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.6
Restructuring and related cost, expected cost		4.3
Restructured and related cost incurred to date	0.6
Severance and Related Costs | Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	9.0
Severance and Related Costs | Acquisition-Related Restructuring | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Severance and Related Costs | Acquisition-Related Restructuring | Consumer
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	9.0
Severance and Related Costs | SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	51.8
Restructuring and related cost, expected cost		130.7
Restructured and related cost incurred to date	69.0
Severance and Related Costs | SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	12.7
Restructuring and related cost, expected cost		17.6
Restructured and related cost incurred to date	12.7
Severance and Related Costs | SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	25.4
Restructuring and related cost, expected cost		98.6
Restructured and related cost incurred to date	42.6
Severance and Related Costs | SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	4.8
Restructuring and related cost, expected cost		4.8
Restructured and related cost incurred to date	4.8
Severance and Related Costs | SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	8.9
Restructuring and related cost, expected cost		9.7
Restructured and related cost incurred to date	8.9
Severance and Related Costs | Administrative Efficiency Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	9.3
Severance and Related Costs | Administrative Efficiency Restructuring Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	7.1
Severance and Related Costs | Administrative Efficiency Restructuring Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	2.2
Severance and Related Costs | Administrative Efficiency Restructuring Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Severance and Related Costs | Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	7.8
Severance and Related Costs | Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	7.7
Severance and Related Costs | Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Severance and Related Costs | Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0.1
Asset Impairment Charge | Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	7.9
Asset Impairment Charge | Acquisition-Related Restructuring | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	3.8
Asset Impairment Charge | Acquisition-Related Restructuring | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	2.5
Asset Impairment Charge | Acquisition-Related Restructuring | Consumer
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	5.4
Asset Impairment Charge | SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	4.2
Restructuring and related cost, expected cost		4.2
Restructured and related cost incurred to date	4.2
Asset Impairment Charge | SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.3
Restructuring and related cost, expected cost		0.3
Restructured and related cost incurred to date	0.3
Asset Impairment Charge | SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Asset Impairment Charge | SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Asset Impairment Charge | SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	3.9
Restructuring and related cost, expected cost		3.9
Restructured and related cost incurred to date	3.9
Asset Impairment Charge | Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	29.3
Asset Impairment Charge | Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	15.3
Asset Impairment Charge | Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Asset Impairment Charge | Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	14.0
Other, Net | Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	6.5
Other, Net | Acquisition-Related Restructuring | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	5.6
Other, Net | Acquisition-Related Restructuring | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Other, Net | Acquisition-Related Restructuring | Consumer
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	6.5
Other, Net | SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	8.2
Restructuring and related cost, expected cost		96.6
Restructured and related cost incurred to date	8.2
Other, Net | SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0
Restructuring and related cost, expected cost		18.4
Restructured and related cost incurred to date	0
Other, Net | SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	3.2
Restructuring and related cost, expected cost		29.4
Restructured and related cost incurred to date	3.2
Other, Net | SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Other, Net | SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	5.0
Restructuring and related cost, expected cost		48.8
Restructured and related cost incurred to date	5.0
Other, Net | Administrative Efficiency Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	7.9
Other, Net | Administrative Efficiency Restructuring Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	6.7
Other, Net | Administrative Efficiency Restructuring Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0.2
Other, Net | Administrative Efficiency Restructuring Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	1.0
Other, Net | Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	10.8
Other, Net | Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	8.5
Other, Net | Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0.8
Other, Net | Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	1.5
Accelerated Depreciation | SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	18.1
Restructuring and related cost, expected cost		73.4
Restructured and related cost incurred to date	18.1
Accelerated Depreciation | SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	2.4
Restructuring and related cost, expected cost		53.9
Restructured and related cost incurred to date	2.4
Accelerated Depreciation | SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.6
Restructuring and related cost, expected cost		2.8
Restructured and related cost incurred to date	0.6
Accelerated Depreciation | SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0
Restructuring and related cost, expected cost		0
Restructured and related cost incurred to date	0
Accelerated Depreciation | SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	15.1
Restructuring and related cost, expected cost		16.7
Restructured and related cost incurred to date	15.1
Accelerated Depreciation | Administrative Efficiency Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	1.5
Accelerated Depreciation | Administrative Efficiency Restructuring Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Accelerated Depreciation | Administrative Efficiency Restructuring Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	1.5
Accelerated Depreciation | Administrative Efficiency Restructuring Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Accelerated Depreciation | Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	22.5
Accelerated Depreciation | Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	22.5
Accelerated Depreciation | Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Accelerated Depreciation | Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Cost Of Goods Sold | Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	30.4
Cost Of Goods Sold | Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	30.0
Cost Of Goods Sold | Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Cost Of Goods Sold | Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0.4
Inventory Write-Offs and Related Costs | Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	7.9
Inventory Write-Offs and Related Costs | Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	7.5
Inventory Write-Offs and Related Costs | Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Inventory Write-Offs and Related Costs | Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0.4
Gain (Loss) on Disposition of Property | Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	(1.6)
Gain (Loss) on Disposition of Property | Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	(1.6)
Gain (Loss) on Disposition of Property | Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Gain (Loss) on Disposition of Property | Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0
Selling, general and administrative expenses | Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	23.4
Selling, general and administrative expenses | Acquisition-Related Restructuring | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	9.4
Selling, general and administrative expenses | Acquisition-Related Restructuring | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	2.5
Selling, general and administrative expenses | Acquisition-Related Restructuring | Consumer
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	20.9
Selling, general and administrative expenses | SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	82.3
Restructuring and related cost, expected cost		304.9
Restructured and related cost incurred to date	99.5
Selling, general and administrative expenses | SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	15.4
Restructuring and related cost, expected cost		90.2
Restructured and related cost incurred to date	15.4
Selling, general and administrative expenses | SCAE Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	29.2
Restructuring and related cost, expected cost		130.8
Restructured and related cost incurred to date	46.4
Selling, general and administrative expenses | SCAE Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	4.8
Restructuring and related cost, expected cost		4.8
Restructured and related cost incurred to date	4.8
Selling, general and administrative expenses | SCAE Plan | Private Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	32.9
Restructuring and related cost, expected cost		79.1
Restructured and related cost incurred to date	32.9
Selling, general and administrative expenses | Administrative Efficiency Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	18.7
Selling, general and administrative expenses | Administrative Efficiency Restructuring Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	13.8
Selling, general and administrative expenses | Administrative Efficiency Restructuring Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	3.9
Selling, general and administrative expenses | Administrative Efficiency Restructuring Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	1.0
Selling, general and administrative expenses | Network Optimization Plan
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	46.3
Selling, general and administrative expenses | Network Optimization Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	29.9
Selling, general and administrative expenses | Network Optimization Plan | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	0.8
Selling, general and administrative expenses | Network Optimization Plan | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructured and related cost incurred to date	$ 15.6