v3.25.2
Restructuring Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Restructuring Cost and Reserve [Line Items]        
Restructuring costs $ 8.0 $ 18.8 $ 45.9 $ 64.6
Other Restructuring, Non-Cash Costs        
Restructuring Cost and Reserve [Line Items]        
Expected restructuring costs 30.0   30.0  
Batteries & Lights | Operating Segments        
Restructuring Cost and Reserve [Line Items]        
Restructuring costs 7.1 15.7 41.5 56.9
Auto Care | Operating Segments        
Restructuring Cost and Reserve [Line Items]        
Restructuring costs 0.9 $ 3.1 4.4 $ 7.7
Minimum | Facility Closing        
Restructuring Cost and Reserve [Line Items]        
Expected restructuring costs 180.0   180.0  
Minimum | Capital Expenditures        
Restructuring Cost and Reserve [Line Items]        
Expected restructuring costs 80.0   80.0  
Maximum | Capital Expenditures        
Restructuring Cost and Reserve [Line Items]        
Expected restructuring costs $ 90.0   $ 90.0