SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Accumulated Balances for Each Component of Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended		12 Months Ended
	Feb. 24, 2019	Feb. 25, 2018	Nov. 26, 2017	Aug. 27, 2017	Feb. 24, 2019	Feb. 25, 2018	May 27, 2018	Nov. 25, 2018	Aug. 26, 2018	May 28, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain on securities	$ 0.0	$ 0.6	$ 0.2	$ 0.2	$ 0.0	$ 1.0
Accumulated balances	7,451.5	3,809.5	3,786.5	3,882.6	7,451.5	3,809.5	$ 3,756.6	$ 7,303.3	$ 3,815.0	$ 4,077.8
Currency translation losses, net of reclassification adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated balances	(102.3)				(102.3)		(94.7)
Derivative adjustments, net of reclassification adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated balances	34.8				34.8		1.0
Unrealized gains (losses) on available-for-sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated balances	0.0				0.0		0.6
Pension and post-employment benefit obligations, net of reclassification adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated balances	(18.2)				(18.2)		(17.4)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain on securities		0.6	0.2	0.2
Accumulated balances	(85.7)	(175.5)	(165.2)	(181.2)	(85.7)	(175.5)	(110.5)	(91.5)	(155.7)	(212.9)
Retained earnings
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated balances	$ 5,025.3	$ 4,758.8	$ 4,464.3	$ 4,312.6	5,025.3	$ 4,758.8	4,744.9	$ 4,886.4	$ 4,841.5	$ 4,247.0
Accounting Standards Update 2016-01 | Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain on securities							$ (0.6)
Accounting Standards Update 2016-01 | Retained earnings
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain on securities					$ 0.6