Quarterly report pursuant to Section 13 or 15(d)

DEBT AND CREDIT FACILITIES DEBT AND CREDIT FACILITIES (Narrative) (Details)

v3.19.2
DEBT AND CREDIT FACILITIES DEBT AND CREDIT FACILITIES (Narrative) (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]          
Debt Instrument, Par Value $ 2,238.0   $ 2,238.0    
Extinguishment of Debt, Amount 714.0 $ 15.5 724.0 $ 15.5  
$750 Million 5.875% 2027 Senior Notes [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Par Value $ 750.0   $ 750.0    
Debt issuance, discount rate 96.125%   96.125%    
Repurchase price if triggering event occurs     1.01    
Debt Issuance Costs, Gross $ 6.8   $ 6.8    
$1.075 Billion 5.75% 2025 Senior Notes [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Par Value 473.3   473.3   $ 1,073.3
Extinguishment of Debt, Amount $ 600.0 $ 1.7 $ 600.0 $ 1.7