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Financing Arrangements (Narrative) (Details) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Oct. 31, 2024
Nov. 30, 2024
Nov. 30, 2023
Nov. 30, 2022
Apr. 30, 2023
Debt Instrument [Line Items]          
Short-term borrowings   $ 483.1 $ 272.2    
Accounts Receivable, Amount Sold   106.9 19.6    
Accounts Receivable, Amount Collected and Not Yet Remitted   9.6      
Treasury Lock [Member]          
Debt Instrument [Line Items]          
Derivatives, Notional Amount   250.0      
Treasury Lock [Member] | Cash flow hedges          
Debt Instrument [Line Items]          
Unrealized Gain (Loss) on Derivatives   2.6      
Letter Of Credit [Member]          
Debt Instrument [Line Items]          
Total unused capacity   13.7      
Outstanding letters of credit   $ 61.5 62.4    
4.950% Senior Unsecured Notes Due 2023          
Debt Instrument [Line Items]          
Stated Note interest rate         4.95%
Short-term borrowings         $ 500.0
Revolving Credit Facility [Member] | Credit Facility Expiring June 2026          
Debt Instrument [Line Items]          
Debt instrument, term   5 years      
Credit facility   $ 1,500.0      
Revolving Credit Facility [Member] | Credit Facility Expiring June 2024          
Debt Instrument [Line Items]          
Debt instrument, term   364 days      
Credit facility   $ 500.0      
Revolving Credit Facility [Member] | Credit Facility Expiring July 2026          
Debt Instrument [Line Items]          
Debt instrument, term   5 years      
Revolving Credit Facility [Member] | Credit Facility Expiring July 2026 | Secured Overnight Financing Rate (SOFR), Addition          
Debt Instrument [Line Items]          
Basis spread on variable rate   1.25%      
Revolving Credit Facility [Member] | Credit Facility Expiring July 2026 | London Interbank Offered Rate (LIBOR)          
Debt Instrument [Line Items]          
Basis spread on variable rate   1.25%      
Revolving Credit Facility [Member] | Credit Facility Expiring June 2023          
Debt Instrument [Line Items]          
Debt instrument, term   364 days      
Credit facility   $ 500.0      
Revolving Credit Facility [Member] | Credit Facility Expiring July 2022          
Debt Instrument [Line Items]          
Debt instrument, term   364 days      
Credit facility   $ 500.0      
Revolving Credit Facility [Member] | Maximum [Member] | Credit Facility Expiring June 2024 | Secured Overnight Financing Rate (SOFR), Addition          
Debt Instrument [Line Items]          
Basis spread on variable rate   1.60%      
Revolving Credit Facility [Member] | Maximum [Member] | Credit Facility Expiring July 2026 | Secured Overnight Financing Rate (SOFR), Addition          
Debt Instrument [Line Items]          
Basis spread on variable rate   1.75%      
Revolving Credit Facility [Member] | Maximum [Member] | Credit Facility Expiring July 2026 | London Interbank Offered Rate (LIBOR)          
Debt Instrument [Line Items]          
Basis spread on variable rate   1.75%      
Revolving Credit Facility [Member] | Minimum [Member] | Credit Facility Expiring June 2024 | Secured Overnight Financing Rate (SOFR), Addition          
Debt Instrument [Line Items]          
Basis spread on variable rate   1.23%      
Line of Credit          
Debt Instrument [Line Items]          
Credit facility   $ 1,568.7      
Maximum borrowing capacity   326.8      
Total unused capacity   308.9      
Committed credit facilities, fee   $ 2.3 $ 2.4 $ 2.1  
Senior Notes | Senior Unsecured Notes          
Debt Instrument [Line Items]          
Stated Note interest rate 4.70% 4.70%      
Debt Instrument, Face Amount $ 500.0 $ 500.0      
Senior Notes | Senior Unsecured Notes | Treasury Lock [Member] | Cash flow hedges          
Debt Instrument [Line Items]          
Derivative, Notional Amount 150.0        
Senior Notes | Senior Unsecured Notes | Treasury Lock [Member] | Cash flow hedges | Interest Expense [Member]          
Debt Instrument [Line Items]          
Interest expense $ 0.9