RESTRUCTURING ACTIVITIES - Schedule of Liabilities Recorded for the SCAE Plan (Details) - SCAE Plan $ in Millions	12 Months Ended
	May 27, 2018 USD ($)
Restructuring Reserve
Beginning balance	$ 59.7
Costs Incurred and Charged to Expense	31.5
Costs Paid or Otherwise Settled	(46.5)
Changes in Estimates	(0.9)
Ending balance	43.8
Pension costs
Restructuring Reserve
Beginning balance	31.8
Costs Incurred and Charged to Expense	0.0
Costs Paid or Otherwise Settled	0.0
Changes in Estimates	0.5
Ending balance	32.3
Severance and related costs
Restructuring Reserve
Beginning balance	13.8
Costs Incurred and Charged to Expense	5.7
Costs Paid or Otherwise Settled	(12.0)
Changes in Estimates	(1.2)
Ending balance	6.3
Consulting/professional fees
Restructuring Reserve
Beginning balance	0.6
Costs Incurred and Charged to Expense	1.1
Costs Paid or Otherwise Settled	(1.6)
Changes in Estimates	0.0
Ending balance	0.1
Contract/lease cancellation
Restructuring Reserve
Beginning balance	11.6
Costs Incurred and Charged to Expense	13.7
Costs Paid or Otherwise Settled	(20.2)
Changes in Estimates	(0.2)
Ending balance	4.9
Other costs
Restructuring Reserve
Beginning balance	1.9
Costs Incurred and Charged to Expense	11.0
Costs Paid or Otherwise Settled	(12.7)
Changes in Estimates	0.0
Ending balance	$ 0.2