SEGMENTS AND GEOGRAPHIC REGIONS Corporate Profile (Details)	Jun. 30, 2019
EQUATE Petrochemical Company Ksc [Member]
Equity Method Investment, Ownership Percentage	42.50%
The Kuwait Olefins Company Ksc [Member]
Equity Method Investment, Ownership Percentage	42.50%
Map Ta Phut Olefins Company [Domain]
Equity Method Investment, Ownership Percentage	32.77%
Equity Method Investment, Ownership Percentage, Direct	20.27%
Equity Method Investment, Ownership Percentage, Indirect	12.50%
Sadara Chemical Company [Member]
Equity Method Investment, Ownership Percentage	35.00%
The Kuwait Styrene Company KSC [Member]
Equity Method Investment, Ownership Percentage	42.50%
SCG-Dow Group [Member]
Equity Method Investment, Ownership Percentage	50.00%