RESTRUCTURING ACTIVITIES - Schedule of Liabilities Recorded for the SCAE Plan (Details) - SCAE Plan $ in Millions	6 Months Ended
	Nov. 26, 2017 USD ($)
Restructuring Cost and Reserve
Balance at May 28, 2017	$ 59.7
Costs Incurred and Charged to Expense	11.5
Costs Paid or Otherwise Settled	(19.5)
Changes in Estimates	1.1
Balance at November 26, 2017	52.8
Pension costs
Restructuring Cost and Reserve
Balance at May 28, 2017	31.8
Costs Incurred and Charged to Expense	0.0
Costs Paid or Otherwise Settled	0.0
Changes in Estimates	2.1
Balance at November 26, 2017	33.9
Severance and related costs
Restructuring Cost and Reserve
Balance at May 28, 2017	13.8
Costs Incurred and Charged to Expense	4.0
Costs Paid or Otherwise Settled	(7.9)
Changes in Estimates	(0.7)
Balance at November 26, 2017	9.2
Consulting/professional fees
Restructuring Cost and Reserve
Balance at May 28, 2017	0.6
Costs Incurred and Charged to Expense	0.7
Costs Paid or Otherwise Settled	(1.1)
Changes in Estimates	0.0
Balance at November 26, 2017	0.2
Contract/lease cancellation
Restructuring Cost and Reserve
Balance at May 28, 2017	11.6
Costs Incurred and Charged to Expense	0.3
Costs Paid or Otherwise Settled	(3.6)
Changes in Estimates	(0.3)
Balance at November 26, 2017	8.0
Other costs
Restructuring Cost and Reserve
Balance at May 28, 2017	1.9
Costs Incurred and Charged to Expense	6.5
Costs Paid or Otherwise Settled	(6.9)
Changes in Estimates	0.0
Balance at November 26, 2017	$ 1.5