Quarterly report pursuant to Section 13 or 15(d)

DEBT - Additional Information (Details)

v3.7.0.1
DEBT - Additional Information (Details)
 3 Months Ended
Mar. 31, 2017
USD ($)
extension
Dec. 31, 2016
USD ($)
Debt Instrument [Line Items]    
Credit facility borrowing capacity $ 900,000,000.0  
Line of credit facility, potential maximum borrowing capacity 1,200,000,000.0  
Line of credit facility, available for borrowing 542,600,000  
Commercial paper notes 900,000,000.0  
Commercial paper, notes outstanding 356,900,000  
Long-term debt $ 2,681,800,000 $ 2,685,400,000
Maximum    
Debt Instrument [Line Items]    
Debt instrument, term 1 year  
Commercial paper, maturity period range 397 days  
Notes, 2.30%, due June 2021    
Debt Instrument [Line Items]    
Long-term debt $ 500,000,000 500,000,000
Debt, interest rate 2.30%  
Notes, 3.25%, due June 2026    
Debt Instrument [Line Items]    
Long-term debt $ 275,000,000 $ 275,000,000
Debt, interest rate 3.25%  
Revolving Credit Facility    
Debt Instrument [Line Items]    
Debt instrument, term 5 years  
Line of credit facility, expiration date Nov. 30, 2020  
Line of credit facility, expiration date, maximum number of extensions | extension 2  
Line of credit facility, expiration date, extension period 1 year  
Long-term line of credit $ 0  
Term Loan    
Debt Instrument [Line Items]    
Line of credit facility, expiration date Nov. 30, 2018  
Letter of Credit    
Debt Instrument [Line Items]    
Letters of credit outstanding, amount $ 500,000