XML 105 R80.htm IDEA: XBRL DOCUMENT v3.25.0.1
Long-Term Debt (Interest Rates And Due Dates) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Debt Instrument [Line Items]    
Finance leases $ 3,700,000 $ 4,000,000.0
Unamortized discounts and deferred loan costs (11,700,000) (13,600,000)
Total debt 1,864,100,000 1,987,600,000
Less: current maturities 1,300,000 308,000,000.0
Total long-term debt $ 1,862,800,000 1,679,600,000
Long-term debt, term 180 days  
Maximum borrowing capacity $ 1,200,000,000 $ 1,200,000,000
Revolving credit facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 1,200,000,000  
Senior Notes    
Debt Instrument [Line Items]    
Redemption price (as a percent) 100.00%  
Long-term debt, term 90 days  
Redemption price, if change of control repurchase event occurs (as a percent) 101.00%  
Limitation on secured debt (as a percent) 15.00%  
Industrial development bonds - variable interest rates    
Debt Instrument [Line Items]    
Year-end Interest Rate 5.00% 4.10%
Short term and long term debt $ 3,800,000 $ 3,800,000
Commercial paper    
Debt Instrument [Line Items]    
Year-end Interest Rate 5.10% 5.60%
Short term and long term debt $ 368,000,000.0 $ 186,000,000.0
Other, partially secured    
Debt Instrument [Line Items]    
Short term and long term debt $ 300,000 $ 7,400,000
Net commercial paper    
Debt Instrument [Line Items]    
Weighted average interest rate (as a percent) 5.60% 5.20%
Line of Credit | Revolving credit facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 1,200,000,000  
Senior Notes, Due 2024 | Senior Notes    
Debt Instrument [Line Items]    
Year-end Interest Rate 0.00% 3.80%
Short term and long term debt $ 0 $ 300,000,000.0
Senior Notes, Due 2027 | Senior Notes    
Debt Instrument [Line Items]    
Year-end Interest Rate 3.50% 3.50%
Short term and long term debt $ 500,000,000.0 $ 500,000,000.0
Senior Notes, Due 2029 | Senior Notes    
Debt Instrument [Line Items]    
Year-end Interest Rate 4.40% 4.40%
Short term and long term debt $ 500,000,000.0 $ 500,000,000.0
Senior Notes, Due 2051 | Senior Notes    
Debt Instrument [Line Items]    
Year-end Interest Rate 3.50% 3.50%
Short term and long term debt $ 500,000,000.0 $ 500,000,000.0