SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Cumulative Effects of Changes Resulting From Adoption of ASC 606 (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 24, 2019	Feb. 25, 2018	Feb. 24, 2019	Feb. 25, 2018	May 27, 2018
Current assets
Receivables, less allowance for doubtful accounts	$ 870.2		$ 870.2		$ 569.4
Inventories	1,638.6		1,638.6		988.7
Prepaid expenses and other current assets	107.6		107.6		184.9
Current liabilities
Other accrued liabilities	851.8		851.8		671.0
Noncurrent Liabilities:
Other noncurrent liabilities	1,918.8		1,918.8		1,060.8
Net sales	2,707.1	$ 1,994.5	6,925.2	$ 5,972.1
Cost of goods sold	1,954.8	1,395.7	4,980.2	4,196.0
Income from continuing operations before income taxes and equity method investment earnings	297.1	$ 228.8	635.5	$ 785.4
Adjustments | Accounting Standards Update 2014-09
Current assets
Receivables, less allowance for doubtful accounts	9.6		9.6		(7.6)
Inventories	(4.4)		(4.4)		2.8
Prepaid expenses and other current assets	(7.1)		(7.1)		6.9
Current liabilities
Other accrued liabilities	(1.1)		(1.1)		1.4
Noncurrent Liabilities:
Other noncurrent liabilities	(0.2)		(0.2)		$ 0.2
Net sales	11.6		18.9
Cost of goods sold	8.4		21.2
Income from continuing operations before income taxes and equity method investment earnings	3.2		(2.3)
Balances without Adoption of Topic 606
Current assets
Receivables, less allowance for doubtful accounts	879.8		879.8
Inventories	1,634.2		1,634.2
Prepaid expenses and other current assets	100.5		100.5
Current liabilities
Other accrued liabilities	850.7		850.7
Noncurrent Liabilities:
Other noncurrent liabilities	1,918.6		1,918.6
Net sales	2,718.7		6,944.1
Cost of goods sold	1,963.2		5,001.4
Income from continuing operations before income taxes and equity method investment earnings	$ 300.3		$ 633.2