Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES (Purchase Commitments) (Details)

v3.19.2
COMMITMENTS AND CONTINGENCIES (Purchase Commitments) (Details)
Jun. 30, 2019
USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]  
Estimated Project Capital Expenditures $ 830,000,000
Estimated Project Capital Expenditures, Variable Contingency 0.20
Capital commitments, amount expected in remainder of 2019 370,000,000
Capital commitments, amount expected in 2020 170,000,000
Capital Addition Purchase Commitments [Member]  
Unrecorded Unconditional Purchase Obligation [Line Items]  
Capital Additions, Purchase Commitments $ 420,000,000