Annual report pursuant to Section 13 and 15(d)

OTHER COMPREHENSIVE INCOME (LOSS) - RECLASSIFICATION DETAILS - HUNTSMAN INTERNATIONAL (Details)

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OTHER COMPREHENSIVE INCOME (LOSS) - RECLASSIFICATION DETAILS - HUNTSMAN INTERNATIONAL (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Pension and other postretirement benefits adjustments      
Reclassification from accumulated other comprehensive loss      
Total before tax $ (80) $ (53) $ (69)
Tax expense 14 15 14
Net of tax (66) (38) (55)
Pension and other postretirement benefits adjustments | Discontinued Operations      
Reclassification from accumulated other comprehensive loss      
Total before tax (19) (14) (15)
Pension and other postretirement benefits adjustments | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Reclassification from accumulated other comprehensive loss      
Total before tax (86) (61) (77)
Tax expense 15 16 15
Net of tax (71) (45) (62)
Pension and other postretirement benefits adjustments | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | Discontinued Operations      
Reclassification from accumulated other comprehensive loss      
Total before tax (24) (18) (20)
Prior service credit      
Reclassification from accumulated other comprehensive loss      
Total before tax 15 16 10
Prior service credit | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Reclassification from accumulated other comprehensive loss      
Total before tax 15 16 10
Actuarial loss      
Reclassification from accumulated other comprehensive loss      
Total before tax (95) (69) (79)
Actuarial loss | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Reclassification from accumulated other comprehensive loss      
Total before tax $ (101) $ (77) $ (87)