RESTRUCTURING ACTIVITIES - Schedule of Restructuring and Related Costs (Details) - SCAE Plan - USD ($) $ in Millions	3 Months Ended
	Aug. 28, 2016	Aug. 30, 2015
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	$ 431.4
Recognized pre-tax expense	14.1	$ 17.4
Cumulative pre-tax expense	374.9
Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	263.3
Recognized pre-tax expense	2.2
Cumulative pre-tax expense	227.4
Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	109.4
Recognized pre-tax expense	4.9
Cumulative pre-tax expense	92.6
Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	46.2
Recognized pre-tax expense	5.0
Cumulative pre-tax expense	42.4
International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	4.3
Recognized pre-tax expense	0.2
Cumulative pre-tax expense	4.3
Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	6.1
Recognized pre-tax expense	1.8
Cumulative pre-tax expense	6.1
Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	2.1
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	2.1
Multi-employer pension costs
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	31.3
Cumulative pre-tax expense	31.3
Multi-employer pension costs | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Multi-employer pension costs | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	29.8
Cumulative pre-tax expense	29.8
Multi-employer pension costs | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.5
Cumulative pre-tax expense	1.5
Multi-employer pension costs | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Multi-employer pension costs | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Multi-employer pension costs | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Total cost of goods sold
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	91.3
Recognized pre-tax expense	5.2
Cumulative pre-tax expense	80.3
Total cost of goods sold | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.2
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	1.2
Total cost of goods sold | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	67.0
Recognized pre-tax expense	3.8
Cumulative pre-tax expense	56.9
Total cost of goods sold | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	23.1
Recognized pre-tax expense	1.4
Cumulative pre-tax expense	22.2
Total cost of goods sold | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Total cost of goods sold | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Total cost of goods sold | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	51.8
Recognized pre-tax expense	3.0
Cumulative pre-tax expense	43.0
Accelerated depreciation | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.2
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	1.2
Accelerated depreciation | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	31.6
Recognized pre-tax expense	1.8
Cumulative pre-tax expense	23.2
Accelerated depreciation | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	19.0
Recognized pre-tax expense	1.2
Cumulative pre-tax expense	18.6
Accelerated depreciation | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Accelerated depreciation | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Accelerated depreciation | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Other cost of goods sold
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	8.2
Recognized pre-tax expense	2.2
Cumulative pre-tax expense	6.0
Other cost of goods sold | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Other cost of goods sold | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	5.6
Recognized pre-tax expense	2.0
Cumulative pre-tax expense	3.9
Other cost of goods sold | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	2.6
Recognized pre-tax expense	0.2
Cumulative pre-tax expense	2.1
Other cost of goods sold | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Other cost of goods sold | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Other cost of goods sold | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Total selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	340.1
Recognized pre-tax expense	8.9
Cumulative pre-tax expense	294.6
Total selling, general and administrative expenses | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	262.1
Recognized pre-tax expense	2.2
Cumulative pre-tax expense	226.2
Total selling, general and administrative expenses | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	42.4
Recognized pre-tax expense	1.1
Cumulative pre-tax expense	35.7
Total selling, general and administrative expenses | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	23.1
Recognized pre-tax expense	3.6
Cumulative pre-tax expense	20.2
Total selling, general and administrative expenses | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	4.3
Recognized pre-tax expense	0.2
Cumulative pre-tax expense	4.3
Total selling, general and administrative expenses | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	6.1
Recognized pre-tax expense	1.8
Cumulative pre-tax expense	6.1
Total selling, general and administrative expenses | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	2.1
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	2.1
Severance and related costs, net
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	144.1
Recognized pre-tax expense	1.8
Cumulative pre-tax expense	139.7
Severance and related costs, net | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	97.7
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	96.4
Severance and related costs, net | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	21.9
Recognized pre-tax expense	(0.2)
Cumulative pre-tax expense	20.4
Severance and related costs, net | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	12.1
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	10.5
Severance and related costs, net | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	4.2
Recognized pre-tax expense	0.2
Cumulative pre-tax expense	4.2
Severance and related costs, net | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	6.1
Recognized pre-tax expense	1.8
Cumulative pre-tax expense	6.1
Severance and related costs, net | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	2.1
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	2.1
Fixed asset impairment (Net of gains on disposal)
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	14.3
Recognized pre-tax expense	3.2
Cumulative pre-tax expense	14.8
Fixed asset impairment (Net of gains on disposal) | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.8
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.8
Fixed asset impairment (Net of gains on disposal) | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	7.3
Recognized pre-tax expense	0.6
Cumulative pre-tax expense	7.8
Fixed asset impairment (Net of gains on disposal) | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	6.2
Recognized pre-tax expense	2.6
Cumulative pre-tax expense	6.2
Fixed asset impairment (Net of gains on disposal) | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Fixed asset impairment (Net of gains on disposal) | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Fixed asset impairment (Net of gains on disposal) | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.6
Recognized pre-tax expense	0.2
Cumulative pre-tax expense	1.5
Accelerated depreciation | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	1.5
Recognized pre-tax expense	0.2
Cumulative pre-tax expense	1.5
Accelerated depreciation | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Accelerated depreciation | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.1
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Accelerated depreciation | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Accelerated depreciation | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Accelerated depreciation | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Contract/Lease cancellation expenses (recoveries)
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	63.1
Recognized pre-tax expense	(1.5)
Cumulative pre-tax expense	61.5
Contract/Lease cancellation expenses (recoveries) | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	61.8
Recognized pre-tax expense	(1.5)
Cumulative pre-tax expense	60.2
Contract/Lease cancellation expenses (recoveries) | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.8
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.8
Contract/Lease cancellation expenses (recoveries) | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.5
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.5
Contract/Lease cancellation expenses (recoveries) | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Contract/Lease cancellation expenses (recoveries) | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Contract/Lease cancellation expenses (recoveries) | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Consulting/Professional fees
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	58.6
Recognized pre-tax expense	0.1
Cumulative pre-tax expense	52.0
Consulting/Professional fees | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	57.5
Recognized pre-tax expense	0.1
Cumulative pre-tax expense	50.9
Consulting/Professional fees | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.6
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.6
Consulting/Professional fees | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.4
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.4
Consulting/Professional fees | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.1
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.1
Consulting/Professional fees | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Consulting/Professional fees | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Other selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	58.4
Recognized pre-tax expense	5.1
Cumulative pre-tax expense	25.1
Other selling, general and administrative expenses | Corporate
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	42.8
Recognized pre-tax expense	3.4
Cumulative pre-tax expense	16.4
Other selling, general and administrative expenses | Grocery & Snacks | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	11.8
Recognized pre-tax expense	0.7
Cumulative pre-tax expense	6.1
Other selling, general and administrative expenses | Refrigerated & Frozen | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	3.8
Recognized pre-tax expense	1.0
Cumulative pre-tax expense	2.6
Other selling, general and administrative expenses | International | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Other selling, general and administrative expenses | Foodservice | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	0.0
Other selling, general and administrative expenses | Commercial | Reporting segments
Restructuring Cost and Reserve [Line Items]
Anticipated pre-tax expense	0.0
Recognized pre-tax expense	0.0
Cumulative pre-tax expense	$ 0.0