v3.10.0.1
DEBT Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Feb. 28, 2018
Jun. 30, 2018
Dec. 28, 2018
Apr. 15, 2018
Mar. 31, 2018
Jan. 15, 2018
Dec. 31, 2017
Debt Instrument [Line Items]              
Long-term debt   $ 3,380,366         $ 3,613,059
Logistics revolving credit agreement [Member]              
Debt Instrument [Line Items]              
Maximum borrowing capacity   $ 1,575,000     $ 1,750,000    
Covenant terms   a consolidated interest coverage ratio (as defined in the Revolving Credit Agreement), which must not be less than 1.75-to-1.00 for each rolling period of four quarters, beginning with the rolling period ending June 30, 2018; the maximum allowed consolidated debt coverage ratio (as defined in the Revolving Credit Agreement) to 5.25-to-1.00 for the rolling periods ending June 30, 2018 through December 31, 2018. For any rolling periods ending on or after March 31, 2019, the maximum allowed consolidated debt coverage ratio may not exceed 5.00-to-1.00.          
Current remaining borrowing capacity   $ 553,700          
Interest rate increase 0.25%            
Interest rate at period end - Revolving Credit Agreement   3.90%          
Long-term debt   $ 1,000,000          
Logistics Notes due 2018 [Member]              
Debt Instrument [Line Items]              
Interest rate increase 0.25%            
Long-term debt         $ 350,000    
Stated interest rate       7.65%      
Interest rate at period end   8.65%          
Logisitics Notes due 2043 [Member]              
Debt Instrument [Line Items]              
Long-term debt   $ 402,500          
Stated interest rate           7.625%  
Interest rate at period end   9.10%          
Interest rate terms   an annual rate equal to the sum of the three-month LIBOR for the related quarterly interest period, plus 6.734% payable quarterly, commencing with the interest payment due April 15, 2018.          
Receivables Financing Agreement [Member]              
Debt Instrument [Line Items]              
Maximum borrowing capacity   $ 125,000          
Long-term debt   $ 56,400          
Weighted average interest rate   3.00%          
Collateral amount   $ 103,200          
Scenario, Forecast [Member] | Logistics revolving credit agreement [Member]              
Debt Instrument [Line Items]              
Maximum borrowing capacity     $ 1,400,000