Quarterly report pursuant to Section 13 or 15(d)

DEBT - Debt Outstanding (Details)

v3.10.0.1
DEBT - Debt Outstanding (Details) - USD ($)
6 Months Ended
Jun. 30, 2018
May 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]      
Total debt $ 2,654,000,000   $ 2,715,300,000
Less short-term debt and current maturities (4,000,000)   (965,300,000)
Less unamortized discounts and debt issuance costs (21,600,000)   (11,000,000)
Total long-term debt, net 2,628,400,000   1,739,000,000
Commercial paper      
Debt Instrument [Line Items]      
Total debt 0   562,600,000
Revolver      
Debt Instrument [Line Items]      
Total debt 0   100,000,000
Term Loan, due Nov 2018      
Debt Instrument [Line Items]      
Total debt 0   400,000,000
Notes, 2.30%, due June 2021      
Debt Instrument [Line Items]      
Total debt $ 500,000,000   500,000,000
Debt, interest rate 2.30%    
Debt, maturity date 2021-06    
Notes, 3.60%, due Aug 2021      
Debt Instrument [Line Items]      
Total debt $ 300,000,000 $ 300,000,000.0 0
Debt, interest rate 3.60% 3.60%  
Notes, Floating Rate, due Aug 2021      
Debt Instrument [Line Items]      
Total debt $ 300,000,000 $ 300,000,000.0 0
Notes, 3.30%, due Dec 2022      
Debt Instrument [Line Items]      
Total debt $ 500,000,000   500,000,000
Debt, interest rate 3.30%    
Debt, maturity date 2022-12    
Notes, 3.95%, due May 2023      
Debt Instrument [Line Items]      
Total debt $ 400,000,000 $ 400,000,000.0 0
Debt, interest rate 3.95% 3.95%  
Notes, 3.25%, due June 2026      
Debt Instrument [Line Items]      
Total debt $ 275,000,000   275,000,000
Debt, interest rate 3.25%    
Debt, maturity date 2026-06    
Debentures, 6.90%, due July 2028      
Debt Instrument [Line Items]      
Total debt $ 125,000,000   125,000,000
Debt, interest rate 6.90%    
Debt, maturity date 2028-07    
Notes, 7.00%, due July 2037      
Debt Instrument [Line Items]      
Total debt $ 250,000,000   250,000,000
Debt, interest rate 7.00%    
Debt, maturity date 2037-07    
Other      
Debt Instrument [Line Items]      
Total debt $ 4,000,000   $ 2,700,000