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Fair Value Measurements - Recurring (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 25, 2020
Sep. 27, 2019
Dec. 27, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Price Risk Derivative Liabilities, at Fair Value $ 2.0   $ 0.0
Proceeds from sales of property, plant and equipment 9.8 $ 48.0  
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Foreign currency forward contracts, net (liability) asset 0.0   0.0
Price Risk Derivative Liabilities, at Fair Value 0.0   0.0
Interest rate contracts, net liability 0.0   0.0
Fair Value, Measurements, Recurring | Significant Observable Inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Foreign currency forward contracts, net (liability) asset (2.8)   1.0
Price Risk Derivative Liabilities, at Fair Value (1.2)   0.0
Interest rate contracts, net liability (55.1)   (30.3)
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Foreign currency forward contracts, net (liability) asset 0.0   0.0
Price Risk Derivative Liabilities, at Fair Value 0.0   0.0
Interest rate contracts, net liability $ 0.0   $ 0.0