RESTRUCTURING ACTIVITIES (Consolidated Amounts) (Details) - SCAE Plan - USD ($) $ in Millions	12 Months Ended
	May 29, 2016	May 31, 2015	May 25, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 443.9
Restructuring and related cost, incurred cost	281.8	$ 47.7	$ 31.3
Restructured and related cost incurred to date	360.8
Total cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	91.2
Restructuring and related cost, incurred cost	49.0
Restructured and related cost incurred to date	75.1
Multi-employer pension costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	31.3
Restructuring and related cost, incurred cost	29.8
Restructured and related cost incurred to date	31.3
Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	52.1
Restructuring and related cost, incurred cost	17.5
Restructured and related cost incurred to date	40.0
Other cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	7.8
Restructuring and related cost, incurred cost	1.7
Restructured and related cost incurred to date	3.8
Total selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	352.7
Restructuring and related cost, incurred cost	232.8
Restructured and related cost incurred to date	285.7
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	143.2
Restructuring and related cost, incurred cost	100.5
Restructured and related cost incurred to date	137.9
Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	1.6
Restructuring and related cost, incurred cost	0.5
Restructured and related cost incurred to date	1.3
Consulting/Professional fees
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	64.3
Restructuring and related cost, incurred cost	48.1
Restructured and related cost incurred to date	51.9
Fixed asset impairment /Net loss on disposal
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	11.6
Restructuring and related cost, incurred cost	10.5
Restructured and related cost incurred to date	11.6
Contract/Lease termination expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	65.4
Restructuring and related cost, incurred cost	61.3
Restructured and related cost incurred to date	63.0
Other selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	66.6
Restructuring and related cost, incurred cost	11.9
Restructured and related cost incurred to date	20.0
Reporting segments | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	154.4
Restructuring and related cost, incurred cost	74.1
Restructured and related cost incurred to date	127.5
Reporting segments | Consumer Foods | Total cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	90.0
Restructuring and related cost, incurred cost	48.8
Restructured and related cost incurred to date	73.9
Reporting segments | Consumer Foods | Multi-employer pension costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	31.3
Restructuring and related cost, incurred cost	29.8
Restructured and related cost incurred to date	31.3
Reporting segments | Consumer Foods | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	50.9
Restructuring and related cost, incurred cost	17.3
Restructured and related cost incurred to date	38.8
Reporting segments | Consumer Foods | Other cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	7.8
Restructuring and related cost, incurred cost	1.7
Restructured and related cost incurred to date	3.8
Reporting segments | Consumer Foods | Total selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	64.4
Restructuring and related cost, incurred cost	25.3
Restructured and related cost incurred to date	53.6
Reporting segments | Consumer Foods | Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	35.4
Restructuring and related cost, incurred cost	11.8
Restructured and related cost incurred to date	33.4
Reporting segments | Consumer Foods | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.1
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Consumer Foods | Consulting/Professional fees
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	1.1
Restructuring and related cost, incurred cost	0.1
Restructured and related cost incurred to date	1.1
Reporting segments | Consumer Foods | Fixed asset impairment /Net loss on disposal
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	10.8
Restructuring and related cost, incurred cost	9.7
Restructured and related cost incurred to date	10.8
Reporting segments | Consumer Foods | Contract/Lease termination expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	1.3
Restructuring and related cost, incurred cost	(0.1)
Restructured and related cost incurred to date	1.3
Reporting segments | Consumer Foods | Other selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	15.7
Restructuring and related cost, incurred cost	3.8
Restructured and related cost incurred to date	7.0
Reporting segments | Commercial Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	8.1
Restructuring and related cost, incurred cost	0.1
Restructured and related cost incurred to date	8.1
Reporting segments | Commercial Foods | Total cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Commercial Foods | Multi-employer pension costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Commercial Foods | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Commercial Foods | Other cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Commercial Foods | Total selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	8.1
Restructuring and related cost, incurred cost	0.1
Restructured and related cost incurred to date	8.1
Reporting segments | Commercial Foods | Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	8.1
Restructuring and related cost, incurred cost	0.1
Restructured and related cost incurred to date	8.1
Reporting segments | Commercial Foods | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Commercial Foods | Consulting/Professional fees
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Commercial Foods | Fixed asset impairment /Net loss on disposal
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Commercial Foods | Contract/Lease termination expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Reporting segments | Commercial Foods | Other selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	281.4
Restructuring and related cost, incurred cost	207.6
Restructured and related cost incurred to date	225.2
Corporate | Total cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	1.2
Restructuring and related cost, incurred cost	0.2
Restructured and related cost incurred to date	1.2
Corporate | Multi-employer pension costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Corporate | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	1.2
Restructuring and related cost, incurred cost	0.2
Restructured and related cost incurred to date	1.2
Corporate | Other cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.0
Restructuring and related cost, incurred cost	0.0
Restructured and related cost incurred to date	0.0
Corporate | Total selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	280.2
Restructuring and related cost, incurred cost	207.4
Restructured and related cost incurred to date	224.0
Corporate | Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	99.7
Restructuring and related cost, incurred cost	88.6
Restructured and related cost incurred to date	96.4
Corporate | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	1.5
Restructuring and related cost, incurred cost	0.5
Restructured and related cost incurred to date	1.3
Corporate | Consulting/Professional fees
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	63.2
Restructuring and related cost, incurred cost	48.0
Restructured and related cost incurred to date	50.8
Corporate | Fixed asset impairment /Net loss on disposal
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	0.8
Restructuring and related cost, incurred cost	0.8
Restructured and related cost incurred to date	0.8
Corporate | Contract/Lease termination expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	64.1
Restructuring and related cost, incurred cost	61.4
Restructured and related cost incurred to date	61.7
Corporate | Other selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	50.9
Restructuring and related cost, incurred cost	8.1
Restructured and related cost incurred to date	$ 13.0