Income Taxes (Tax Effects On Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions	May 31, 2020	May 26, 2019
Income Tax Disclosure [Abstract]
Accrued liabilities	$ 81.0	$ 69.2
Compensation and employee benefits	127.5	119.9
Deferred rent and interest income	0.0	91.1
Lease liabilities	1,186.8	0.0
Net operating loss, credit and charitable contribution carryforwards	117.3	75.3
Other	11.4	5.9
Gross deferred tax assets	1,524.0	361.4
Valuation allowance	(19.3)	(29.7)
Deferred tax assets, net of valuation allowance	1,504.7	331.7
Trademarks and other acquisition related intangibles	(164.4)	(211.5)
Buildings and equipment	(263.7)	(247.7)
Capitalized software and other assets	(25.7)	(24.6)
Lease assets	(1,098.0)	0.0
Other	(9.0)	(4.8)
Gross deferred tax liabilities	(1,560.8)	(488.6)
Net deferred tax liabilities	$ (56.1)	$ (156.9)