Quarterly report pursuant to Section 13 or 15(d)

OTHER COMPREHENSIVE INCOME - COMPONENTS AND CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS - HUNTSMAN INTERNATIONAL (Details)

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OTHER COMPREHENSIVE INCOME - COMPONENTS AND CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS - HUNTSMAN INTERNATIONAL (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Components of other comprehensive income            
Other comprehensive (loss) income, net of tax $ (25) $ 83 $ (103) $ 253    
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Balance at the beginning of the period     2,834 936 $ 936  
Revised beginning balance         2,834  
Other comprehensive (loss) income, net of tax (25) 104 (100) 277    
Balance at the end of the period 3,604 2,055 3,604 2,055 2,834 $ 936
Total            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     (152) 176    
Tax benefit     (4) 30    
Amounts reclassified from accumulated other comprehensive loss, gross     60 52    
Tax benefit (expense)     (7) (5)    
Net current-period other comprehensive income (loss)     (103) 253    
Total | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Balance at the beginning of the period     (1,406) (1,727) (1,727)  
Revised beginning balance         (1,416)  
Other comprehensive (loss) income before reclassifications, gross     (153) 176    
Tax benefit     (2) 29    
Amounts reclassified from accumulated other comprehensive loss, gross     61 57    
Contribution of other comprehensive income from Parent       20    
Tax benefit (expense)     (6) (5)    
Net current-period other comprehensive income (loss)     (100) 277    
Balance at the end of the period (1,516) (1,450) (1,516) (1,450) (1,406) (1,727)
Foreign currency translation adjustment            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     (155) 170    
Tax benefit     (1) 31    
Net current-period other comprehensive income (loss)     (156) 201    
Foreign currency translation adjustment, tax     66 69 65 100
Foreign currency translation adjustment | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Balance at the beginning of the period     (252) (462) (462)  
Revised beginning balance         (252)  
Other comprehensive (loss) income before reclassifications, gross     (156) 169    
Tax benefit     (1) 30    
Net current-period other comprehensive income (loss)     (157) 199    
Balance at the end of the period (409) (263) (409) (263) (252) (462)
Foreign currency translation adjustment, tax     52 56 51 86
Pension and other postretirement benefits adjustments            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     2      
Amounts reclassified from accumulated other comprehensive loss, gross 19 21 60 60    
Tax benefit (expense) (3) (3) (1) (5)    
Net current-period other comprehensive income (loss)     61 55    
Pension and other postretirement benefits adjustments, tax     171 172 172 177
Pension and other postretirement benefits adjustments | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Balance at the beginning of the period     (1,174) (1,286) (1,286)  
Revised beginning balance         (1,174)  
Other comprehensive (loss) income before reclassifications, gross     2      
Amounts reclassified from accumulated other comprehensive loss, gross 19 22 61 65    
Contribution of other comprehensive income from Parent       20    
Tax benefit (expense) (2) (3) (1) (5)    
Net current-period other comprehensive income (loss)     62 80    
Balance at the end of the period (1,112) (1,206) (1,112) (1,206) (1,174) (1,286)
Pension and other postretirement benefits adjustments, tax     198 200 199 205
Other comprehensive income of unconsolidated affiliates            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     1 (1)    
Net current-period other comprehensive income (loss)     1 (1)    
Other comprehensive income of unconsolidated affiliates | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Balance at the beginning of the period     3 4 4  
Revised beginning balance         3  
Other comprehensive (loss) income before reclassifications, gross     1 (1)    
Net current-period other comprehensive income (loss)     1 (1)    
Balance at the end of the period 4 3 4 3 3 4
Other, net            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross       7    
Tax benefit     (3) (1)    
Amounts reclassified from accumulated other comprehensive loss, gross       (8)    
Tax benefit (expense)     (6)      
Net current-period other comprehensive income (loss)     (9) (2)    
Other, net | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Balance at the beginning of the period     17 17 17  
Revised beginning balance         7  
Other comprehensive (loss) income before reclassifications, gross       8    
Tax benefit     (1) (1)    
Amounts reclassified from accumulated other comprehensive loss, gross       (8)    
Tax benefit (expense)     (5)      
Net current-period other comprehensive income (loss)     (6) (1)    
Balance at the end of the period 1 16 1 16 17 17
Amounts attributable to noncontrolling interests            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     32 (12)    
Net current-period other comprehensive income (loss)     32 (12)    
Disposition of a portion of P and A Business     (5) 72    
Amounts attributable to noncontrolling interests | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Balance at the beginning of the period     143 36 36  
Revised beginning balance         143  
Other comprehensive (loss) income before reclassifications, gross     32 (12)    
Net current-period other comprehensive income (loss)     32 (12)    
Disposition of a portion of P and A Business     (5) 72    
Balance at the end of the period 170 96 170 96 143 36
Accumulated other comprehensive (loss) income            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     (120) 164    
Tax benefit     (4) 30    
Amounts reclassified from accumulated other comprehensive loss, gross     60 52    
Tax benefit (expense)     (7) (5)    
Other comprehensive (loss) income, net of tax     (76) 313    
Net current-period other comprehensive income (loss)     (71) 241    
Disposition of a portion of P and A Business     (5) 72    
Accumulated other comprehensive (loss) income | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Balance at the beginning of the period     (1,263) (1,691) (1,691)  
Revised beginning balance         (1,273)  
Other comprehensive (loss) income before reclassifications, gross     (121) 164    
Tax benefit     (2) 29    
Amounts reclassified from accumulated other comprehensive loss, gross     61 57    
Contribution of other comprehensive income from Parent       20    
Tax benefit (expense)     (6) (5)    
Other comprehensive (loss) income, net of tax     (73) 337    
Net current-period other comprehensive income (loss)     (68) 265    
Disposition of a portion of P and A Business     (5) 72    
Balance at the end of the period $ (1,346) $ (1,354) $ (1,346) $ (1,354) (1,263) $ (1,691)
ASU 2016-01 | Total            
Components of other comprehensive income            
Cumulative effect of changes in fair value of equity investments         (10)  
ASU 2016-01 | Total | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Cumulative effect of changes in fair value of equity investments         (10)  
ASU 2016-01 | Other, net            
Components of other comprehensive income            
Cumulative effect of changes in fair value of equity investments         (10)  
ASU 2016-01 | Other, net | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Cumulative effect of changes in fair value of equity investments         (10)  
ASU 2016-01 | Accumulated other comprehensive (loss) income            
Components of other comprehensive income            
Cumulative effect of changes in fair value of equity investments         (10)  
ASU 2016-01 | Accumulated other comprehensive (loss) income | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES            
Components of other comprehensive income            
Cumulative effect of changes in fair value of equity investments         $ (10)