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INCOME TAXES - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 29, 2020
Feb. 23, 2019
Feb. 24, 2018
Feb. 25, 2017
Tax Credit Carryforward [Line Items]        
Non-cash income tax benefit as a result of lower corporate income tax rate $ 56.9 $ 430.4  
Reorganization of limited liability companies     46.7  
Released of deferred tax asset valuation allowance     218.0  
Tax expense for losses benefited by the members     83.1  
Valuation allowance for deferred tax assets 135.1 139.5 134.9 $ 387.6
Tax positions that would reduce effective tax rate if recognized in future periods 268.2 267.7 249.0  
Indemnification assets recorded that would offset any future recognition 7.9      
Expenses (benefits) related to interest and penalties 9.6 $ 1.8 4.6  
Reduction in uncertain tax position from the adoption of IRS safe harbor     $ 70.1  
Possible decrease in uncertain tax position in the next twelve months 137.6      
Federal        
Tax Credit Carryforward [Line Items]        
Net operating loss carryforwards 32.3      
Amount of tax credit carryforward 0.0      
State        
Tax Credit Carryforward [Line Items]        
Net operating loss carryforwards 1,696.8      
Amount of tax credit carryforward $ 41.7