SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Cumulative Effects of Changes Resulting From Adoption of ASC 606 (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 25, 2018	Nov. 26, 2017	Nov. 25, 2018	Nov. 26, 2017	May 27, 2018
Current assets
Receivables, less allowance for doubtful accounts	$ 958.1		$ 958.1		$ 582.6
Inventories	1,729.7		1,729.7		997.1
Prepaid expenses and other current assets	108.7		108.7		186.8
Current liabilities
Other accrued liabilities	793.3		793.3		672.9
Noncurrent Liabilities:
Other noncurrent liabilities	1,923.6		1,923.6		1,065.2
Net sales	2,383.7	$ 2,173.4	4,218.1	$ 3,977.6
Cost of goods sold	1,706.5	1,515.1	3,025.4	2,800.3
Income from continuing operations before income taxes and equity method investment earnings	119.0	$ 313.0	338.4	$ 556.6
Accounting Standards Update 2014-09
Current assets
Receivables, less allowance for doubtful accounts	958.1		958.1
Inventories	1,729.7		1,729.7
Prepaid expenses and other current assets	108.7		108.7
Current liabilities
Other accrued liabilities	793.3		793.3
Noncurrent Liabilities:
Other noncurrent liabilities	1,923.6		1,923.6
Net sales	2,383.7		4,218.1
Cost of goods sold	1,706.5		3,025.4
Income from continuing operations before income taxes and equity method investment earnings	119.0		338.4
Balances without Adoption of Topic 606
Noncurrent Liabilities:
Net sales	2,400.3		4,225.4
Cost of goods sold	1,712.5		3,038.2
Income from continuing operations before income taxes and equity method investment earnings	129.6		332.9
Balances without Adoption of Topic 606 | Accounting Standards Update 2014-09
Current assets
Receivables, less allowance for doubtful accounts	966.7		966.7
Inventories	1,725.9		1,725.9
Prepaid expenses and other current assets	93.9		93.9
Current liabilities
Other accrued liabilities	792.4		792.4
Noncurrent Liabilities:
Other noncurrent liabilities	1,921.3		1,921.3
Adjustments | Accounting Standards Update 2014-09
Current assets
Receivables, less allowance for doubtful accounts	8.6		8.6		(7.6)
Inventories	(3.8)		(3.8)		2.8
Prepaid expenses and other current assets	(14.8)		(14.8)		6.9
Current liabilities
Other accrued liabilities	(0.9)		(0.9)		1.4
Noncurrent Liabilities:
Other noncurrent liabilities	(2.3)		(2.3)		$ 0.2
Net sales	16.6		7.3
Cost of goods sold	6.0		12.8
Income from continuing operations before income taxes and equity method investment earnings	$ 10.6		$ (5.5)