PRE-TAX INCOME AND INCOME TAXES - Reconciliation of Income Taxes to the Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
May 26, 2019	May 27, 2018	May 28, 2017
Income Tax Disclosure [Abstract]
Computed U.S. Federal income taxes	$ 188.8	$ 285.3	$ 280.2
State income taxes, net of U.S. Federal tax impact	34.1	18.0	22.4
Remeasurement of U.S. deferred taxes	0.0	(241.6)	0.0
Transition tax on foreign earnings	(4.6)	19.8	0.0
Tax credits and domestic manufacturing deduction	(5.6)	(20.6)	(19.8)
Federal rate differential on legal reserve	0.0	12.6	0.0
Goodwill and intangible impairments	12.5	0.0	104.7
Stock compensation	(2.1)	(5.7)	(18.8)
Legal entity reorganization	16.9	0.0	0.0
State tax impact of combining Pinnacle business	(12.0)	0.0	0.0
Change of valuation allowance on capital loss carryforward	(32.2)	78.6	(84.1)
Change in estimate related to tax methods used for certain international sales, federal credits, and state credits	0.0	0.0	(8.0)
Other	23.0	28.2	(21.9)
Total provision for income taxes	$ 218.8	$ 174.6	$ 254.7

Effective Income Tax Rate Reconciliation, Federal Rate Legal Reserve Differential, Amount

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