RESTRUCTURING ACTIVITIES - Schedule of Liabilities Recorded for the SCAE Plan (Details) - SCAE Plan $ in Millions	9 Months Ended
	Feb. 25, 2018 USD ($)
Restructuring Cost and Reserve
Balance at May 28, 2017	$ 59.7
Costs Incurred and Charged to Expense	28.0
Costs Paid or Otherwise Settled	(39.1)
Changes in Estimates	(0.9)
Balance at February 25, 2018	47.7
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	0.5
Balance at February 25, 2018	32.3
Severance and related costs
Restructuring Cost and Reserve
Balance at May 28, 2017	13.8
Costs Incurred and Charged to Expense	4.5
Costs Paid or Otherwise Settled	(9.5)
Changes in Estimates	(0.9)
Balance at February 25, 2018	7.9
Consulting/professional fees
Restructuring Cost and Reserve
Balance at May 28, 2017	0.6
Costs Incurred and Charged to Expense	0.9
Costs Paid or Otherwise Settled	(1.3)
Changes in Estimates	0.0
Balance at February 25, 2018	0.2
Contract/lease termination
Restructuring Cost and Reserve
Balance at May 28, 2017	11.6
Costs Incurred and Charged to Expense	13.3
Costs Paid or Otherwise Settled	(18.1)
Changes in Estimates	(0.5)
Balance at February 25, 2018	6.3
Other costs
Restructuring Cost and Reserve
Balance at May 28, 2017	1.9
Costs Incurred and Charged to Expense	9.3
Costs Paid or Otherwise Settled	(10.2)
Changes in Estimates	0.0
Balance at February 25, 2018	$ 1.0