RESTRUCTURING ACTIVITIES (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended			28 Months Ended
	Feb. 22, 2015	Nov. 23, 2014	Aug. 24, 2014	May. 31, 2015	May. 25, 2014	May. 26, 2013	May. 31, 2015
Restructuring Cost and Reserve [Line Items]
Increase to cost of goods sold				$ 12,523.9	$ 12,331.7	$ 10,104.4
Decrease to selling, general, and administrative expenses				(3,472.1)	(2,771.2)	(2,065.9)
SCAE Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Approved Cost				394.0
Restructuring and related cost, expected cost				267.3			$ 267.3
Expenses that have resulted or will result in cash outflows				177.3
Non-cash expenses				90.0
Restructuring And Related Cost Cash Outflows				38.4
Restructuring And Related Cost Noncash Charges				46.8
Restructuring And Related Cost Incurred Cash Outflows							127.2
Restructuring And Related Cost Incurred Noncash Charges							70.1
Restructuring and related cost, incurred cost				85.2
SCAE Plan | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost				84.8			84.8
Restructuring and related cost, incurred cost				35.1
Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost				23.7			$ 23.7
Expenses that have resulted or will result in cash outflows				15.8
Non-cash expenses				7.9
Acquisition-Related Restructuring | Consumer Foods
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost				$ 0.3	9.4
Other Restructuring Plans
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost					2.4	$ 7.6
Restatement Adjustment | Correction to Property Classify Accelerated Depreciation Related to Restructuring Activities
Restructuring Cost and Reserve [Line Items]
Increase to cost of goods sold	$ 3.9	$ 8.5	$ 8.0		17.5
Decrease to selling, general, and administrative expenses	$ 3.9	$ 8.5	$ 8.0		$ 17.5