XML 77 R79.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Long-Term Debt (Long-Term Debt, Weighted Average Interest Rates And Due Dates) (Details) - USD ($)
1 Months Ended 12 Months Ended
Jan. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]      
Balance   $ 2,117,600,000 $ 1,169,000,000.0
Finance leases (primarily vehicles)   4,200,000  
Finance leases (primarily vehicles)     4,700,000
Unamortized discounts and deferred loan cost   (14,900,000) (10,100,000)
Less: current maturities   51,100,000 1,200,000
Total long-term debt   $ 2,066,500,000 $ 1,167,800,000
Debt instrument amount issued $ 12,500,000    
Term notes      
Debt Instrument [Line Items]      
Redemption price, percent   100.00%  
Long-term debt, term   90 days  
Redemption price, if Change of Control Repurchase Event occurs, percent   101.00%  
Limitation on secured debt, percent   15.00%  
Industrial development bonds, principally variable interest rates      
Debt Instrument [Line Items]      
Year-end Interest Rate   1.60% 1.90%
Balance   $ 3,800,000 $ 3,800,000
Commercial paper      
Debt Instrument [Line Items]      
Year-end Interest Rate   2.00% 2.60%
Balance   $ 61,500,000 $ 70,000,000.0
Other, partially secured      
Debt Instrument [Line Items]      
Balance   $ 500,000 $ 600,000
Net commercial paper      
Debt Instrument [Line Items]      
Weighted average interest rate   2.60% 2.40%
Tranche A Term Loan      
Debt Instrument [Line Items]      
Debt instrument amount issued $ 500,000,000.0    
Maturities (term) 5 years    
Repayments of debt   $ 37,500,000  
Variable interest rate   2.90%  
Senior Notes, Due 2022 | Term notes      
Debt Instrument [Line Items]      
Year-end Interest Rate   3.40% 3.40%
Balance   $ 300,000,000.0 $ 300,000,000.0
Senior Notes, Due 2024 | Term notes      
Debt Instrument [Line Items]      
Year-end Interest Rate   3.80% 3.80%
Balance   $ 300,000,000.0 $ 300,000,000.0
Senior Notes, Due 2027 | Term notes      
Debt Instrument [Line Items]      
Year-end Interest Rate   3.50% 3.50%
Balance   $ 500,000,000.0 $ 500,000,000.0
Senior Notes, Due 2029 | Term notes      
Debt Instrument [Line Items]      
Year-end Interest Rate   4.40%  
Balance   $ 500,000,000.0 0
Term Loan, Due 2024 | Term notes      
Debt Instrument [Line Items]      
Balance   $ 462,500,000 $ 0