SHARE-BASED PAYMENTS - Summary of Stock Appreciation Awards (Details) - Stock Appreciation Rights (SARs) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	May 26, 2019 USD ($) $ / shares shares
Number of Awards
Granted (in shares) | shares	2.3
Exercised (in shares) | shares	(0.1)
Forfeited (in shares) | shares	(1.8)
Outstanding, ending balance (in shares) | shares	0.4
Exercisable (in shares) | shares	0.4
Weighted Average Exercise Price
Granted (in dollars per share) | $ / shares	$ 27.09
Exercised (in dollars per share) | $ / shares	24.79
Forfeited (in dollars per share) | $ / shares	26.92
Outstanding, ending balance (in dollars per share) | $ / shares	28.13
Exercisable (in dollars per share) | $ / shares	$ 28.13
Average Remaining Contractual Term (Years)
Outstanding (term)	1 month 27 days
Exercisable (term)	1 month 27 days
Aggregate Intrinsic Value (in Millions)
Exercised | $	$ 0.1
Outstanding | $	0.6
Exercisable | $	$ 0.6