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Restructuring and Related Charges - Summary of Costs Incurred and Cumulative Costs By Cost Type (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 04, 2021
Mar. 29, 2020
Apr. 04, 2021
Mar. 29, 2020
Restructuring Cost and Reserve [Line Items]        
Restructuring and related charges $ 4.1 $ 21.9 $ 13.3 $ 49.4
Cumulative costs 136.3   136.3  
Estimated future costs to be incurred 31.6   31.6  
Termination Benefits        
Restructuring Cost and Reserve [Line Items]        
Restructuring and related charges 0.3 6.2 3.2 11.4
Cumulative costs 23.6   23.6  
Estimated future costs to be incurred 2.0   2.0  
Other Costs        
Restructuring Cost and Reserve [Line Items]        
Restructuring and related charges 3.8 $ 15.7 10.1 $ 38.0
Cumulative costs 112.7   112.7  
Estimated future costs to be incurred $ 29.6   $ 29.6