Quarterly report pursuant to Section 13 or 15(d)

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

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OTHER COMPREHENSIVE INCOME - RECLASSIFICATION DETAILS - HUNTSMAN INTERNATIONAL (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Pension and other postretirement benefits adjustments    
Reclassification from accumulated other comprehensive loss    
Total before tax $ 58 $ 15
Income tax expense (14) (3)
Net of tax 44 12
Pension and other postretirement benefits adjustments | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES    
Reclassification from accumulated other comprehensive loss    
Total before tax 59 16
Income tax expense (14) (3)
Net of tax 45 13
Prior service credit    
Reclassification from accumulated other comprehensive loss    
Total before tax (3) (3)
Prior service credit | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES    
Reclassification from accumulated other comprehensive loss    
Total before tax (3) (3)
Settlement loss    
Reclassification from accumulated other comprehensive loss    
Total before tax 41  
Settlement loss | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES    
Reclassification from accumulated other comprehensive loss    
Total before tax 41  
Actuarial loss    
Reclassification from accumulated other comprehensive loss    
Total before tax 20 18
Actuarial loss | Discontinued Operations    
Reclassification from accumulated other comprehensive loss    
Total before tax 1 1
Actuarial loss | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES    
Reclassification from accumulated other comprehensive loss    
Total before tax 21 19
Actuarial loss | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | Discontinued Operations    
Reclassification from accumulated other comprehensive loss    
Total before tax $ 1 $ 1