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, 2018
Dec. 31, 2017
Dec. 31, 2016
Pension and other postretirement benefits adjustments      
Reclassification from accumulated other comprehensive loss      
Total before tax $ 77 $ 80 $ 53
Income tax benefit (expense) (13) (14) (15)
Net of tax 64 66 38
Pension and other postretirement benefits adjustments | Discontinued Operations      
Reclassification from accumulated other comprehensive loss      
Total before tax 16 19 14
Pension and other postretirement benefits adjustments | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Reclassification from accumulated other comprehensive loss      
Total before tax 80 86 61
Income tax benefit (expense) (14) (15) (16)
Net of tax 66 71 45
Pension and other postretirement benefits adjustments | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | Discontinued Operations      
Reclassification from accumulated other comprehensive loss      
Total before tax 16 24 18
Prior service credit      
Reclassification from accumulated other comprehensive loss      
Total before tax (12) (15) (16)
Prior service credit | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Reclassification from accumulated other comprehensive loss      
Total before tax (12) (15) (16)
Actuarial loss      
Reclassification from accumulated other comprehensive loss      
Total before tax 87 95 69
Actuarial loss | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Reclassification from accumulated other comprehensive loss      
Total before tax 90 $ 101 $ 77
Settlement loss      
Reclassification from accumulated other comprehensive loss      
Total before tax 2    
Settlement loss | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Reclassification from accumulated other comprehensive loss      
Total before tax $ 2