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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($)
shares in Millions, $ in Millions
 6 Months Ended 12 Months Ended
Sep. 13, 2023
Jul. 01, 2023
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Oct. 27, 2023
Significant Accounting Policies [Line Items]            
Percentage of annual net sales from combined second and third quarter sales   75.00%        
Number of restricted shares issued (in shares) 0.4          
Deferred advertising costs     $ 20.0      
Advertising expenses     123.7 $ 120.3 $ 165.7  
Research and development charge     35.7 45.3 45.4  
Product registration costs     12.4 13.0 12.3  
Interest capitalized on capital projects     2.1 2.2 0.8  
Noncash investing activities for unpaid liabilities incurred     32.1 33.3 41.6  
Outstanding payment obligations     18.3 8.6    
Supplier finance payment     185.3      
Recognition of accumulated foreign currency translation loss     1.3 1.3 (1.8)  
Operating lease right-of-use assets     262.6 288.9    
Current lease liabilities     76.4 76.2    
Non-current operating lease liabilities     $ 220.1 $ 223.2    
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]     Other Liabilities, Current Other Liabilities, Current    
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]     Other Liabilities, Noncurrent Other Liabilities, Noncurrent    
Other investing, net     $ (12.4) $ 29.3 $ (8.7)  
Payments for (Proceeds from) Loans Receivable     $ 37.0      
Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration]     Accounts Payable, Current Accounts Payable, Current    
Subsequent Event            
Significant Accounting Policies [Line Items]            
Accounts Receivable, Held-for-Sale           $ 600.0
Standby Letters of Credit | Subsequent Event            
Significant Accounting Policies [Line Items]            
Maximum borrowing capacity           $ 70.0
Officer | Options | Project Focus            
Significant Accounting Policies [Line Items]            
Expiration period (in years)     10 years      
Director            
Significant Accounting Policies [Line Items]            
Award vesting period (in years)     1 year      
Minimum            
Significant Accounting Policies [Line Items]            
Award vesting period (in years)     3 years      
Expected forfeiture rate     15.00%      
Intangible assets amortization period     3 years      
Payment timing, period     30 days      
Minimum | Software            
Significant Accounting Policies [Line Items]            
Intangible assets amortization period     3 years      
Minimum | Officer | Performance Shares [Member] | Project Focus            
Significant Accounting Policies [Line Items]            
Vesting percent of target award     50.00%      
Maximum            
Significant Accounting Policies [Line Items]            
Award vesting period (in years)     5 years      
Intangible assets amortization period     25 years      
Payment timing, period     60 days      
Maximum | Software            
Significant Accounting Policies [Line Items]            
Intangible assets amortization period     8 years      
Maximum | Officer | Performance Shares [Member] | Project Focus            
Significant Accounting Policies [Line Items]            
Vesting percent of target award     250.00%