PRE-TAX INCOME AND INCOME TAXES - Schedule of the Tax Effect of Temporary Differences and Carryforwards (Details) - USD ($) $ in Millions	May 26, 2019	May 27, 2018
Assets
Inventory	$ 15.2	$ 2.6
Accrued expenses	11.8	15.5
Compensation related liabilities	35.9	34.1
Pension and other postretirement benefits	54.6	45.8
Other liabilities that will give rise to future tax deductions	123.5	109.7
Net capital and operating loss carryforwards	766.5	762.5
Federal credits	18.0	3.5
Other	37.6	23.6
Gross deferred tax assets	1,063.1	997.3
Less: Valuation allowance	(738.1)	(739.6)
Net deferred taxes	325.0	257.7
Liabilities
Property, plant and equipment	240.7	141.0
Goodwill, trademarks and other intangible assets	1,187.0	406.2
Investment in unconsolidated subsidiaries	185.4	165.8
Other	24.0	9.5
Gross deferred tax liabilities	1,637.1	722.5
Net deferred taxes	$ 1,637.1	$ 722.5