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DEBT (Details)
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 28, 2019
EUR (€)
Jun. 30, 2015
USD ($)
Mar. 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2019
EUR (€)
Jul. 31, 2019
USD ($)
Aug. 31, 2016
USD ($)
Jun. 30, 2013
Mar. 31, 2013
USD ($)
Debt Instrument [Line Items]                  
Capitalized issue costs       $ 9,000,000          
2015 Facility                  
Debt Instrument [Line Items]                  
Debt term   5 years              
Line of credit facility   $ 400,000,000.0              
Write off debt issuance costs     $ 2,000,000.0            
2013 Notes                  
Debt Instrument [Line Items]                  
Increase in interest rate for every one-notch downgrade of long-term credit ratings below investment grade       0.25%          
Maximum aggregate increase in interest rate related to downgrade of long-term credit ratings below investment grade       2.00%          
4.6% Notes due February 2022 | 2019 Facility                  
Debt Instrument [Line Items]                  
Debt term 3 years                
Line of credit facility € 200,000,000.0     $ 218,000,000          
Interest rate 4.60%                
Debt issuance costs     $ 11,000,000.0            
Remaining borrowing capacity | €         € 179,000,000        
4.6% Notes due March 2023                  
Debt Instrument [Line Items]                  
Interest rate               4.60% 4.60%
Principal amount       112,300,000   $ 274,800,000     $ 500,000,000.0
5.0% Notes due March 2023                  
Debt Instrument [Line Items]                  
Interest rate                 5.00%
Principal amount           $ 400,000,000.0     $ 500,000,000.0
6.95% Notes due March 2043                  
Debt Instrument [Line Items]                  
Interest rate                 6.95%
Principal amount                 $ 250,000,000.0
7.875% Notes due August 2023                  
Debt Instrument [Line Items]                  
Interest rate             7.875%    
Principal amount             $ 500,000,000.0    
6.5% Notes due in August 2022 | 2019 Notes                  
Debt Instrument [Line Items]                  
Interest rate           6.50%      
Principal amount           $ 400.0      
AIO                  
Debt Instrument [Line Items]                  
Standby letters of credit, recorded liability       $ 23,000,000