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 6 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Components of other comprehensive income            
Other comprehensive (loss) income, net of tax $ (181) $ 73 $ (78) $ 170    
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 (180) 74 (75) 173    
Balance at the end of the period 3,674 1,332 3,674 1,332 2,834 $ 936
Total            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     (102) 124    
Tax benefit     (13) 17    
Amounts reclassified from accumulated other comprehensive loss, gross     41 31    
Tax benefit (expense)     (4) (2)    
Other comprehensive (loss) income, net of tax       170    
Net current-period other comprehensive income (loss)     (78)      
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     (102) 123    
Tax benefit     (11) 17    
Amounts reclassified from accumulated other comprehensive loss, gross     42 35    
Tax benefit (expense)     (4) (2)    
Other comprehensive (loss) income, net of tax       173    
Net current-period other comprehensive income (loss)     (75)      
Balance at the end of the period (1,491) (1,554) (1,491) (1,554) (1,406) (1,727)
Foreign currency translation adjustment            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     (105) 118    
Tax benefit     (10) 17    
Other comprehensive (loss) income, net of tax       135    
Net current-period other comprehensive income (loss)     (115)      
Foreign currency translation adjustment, tax     75 83 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     (105) 117    
Tax benefit     (10) 17    
Other comprehensive (loss) income, net of tax       134    
Net current-period other comprehensive income (loss)     (115)      
Balance at the end of the period (367) (328) (367) (328) (252) (462)
Foreign currency translation adjustment, tax     61 69 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 20 41 39    
Tax benefit (expense) (3) (1) 2 (2)    
Other comprehensive (loss) income, net of tax       37    
Net current-period other comprehensive income (loss)     45      
Pension and other postretirement benefits adjustments, tax     174 175 172 177
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 20 22 42 43    
Tax benefit (expense) (4) (1) 1 (2)    
Other comprehensive (loss) income, net of tax       41    
Net current-period other comprehensive income (loss)     45      
Balance at the end of the period (1,129) (1,245) (1,129) (1,245) (1,174) (1,286)
Pension and other postretirement benefits adjustments, tax     200 203 199 205
Other comprehensive income of unconsolidated affiliates            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     1      
Net current-period other comprehensive income (loss)     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      
Net current-period other comprehensive income (loss)     1      
Balance at the end of the period 4 4 4 4 3 4
Other, net            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross       6    
Tax benefit     (3)      
Amounts reclassified from accumulated other comprehensive loss, gross       (8)    
Tax benefit (expense)     (6)      
Other comprehensive (loss) income, net of tax       (2)    
Net current-period other comprehensive income (loss)     (9)      
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       6    
Tax benefit     (1)      
Amounts reclassified from accumulated other comprehensive loss, gross       (8)    
Tax benefit (expense)     (5)      
Other comprehensive (loss) income, net of tax       (2)    
Net current-period other comprehensive income (loss)     (6)      
Balance at the end of the period 1 15 1 15 17 17
Amounts attributable to noncontrolling interests            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     31 (7)    
Other comprehensive (loss) income, net of tax       (7)    
Net current-period other comprehensive income (loss)     31      
Disposition of a portion of P and A Business     (5)      
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     31 (7)    
Other comprehensive (loss) income, net of tax       (7)    
Net current-period other comprehensive income (loss)     31      
Disposition of a portion of P and A Business     (5)      
Balance at the end of the period 169 29 169 29 143 36
Accumulated other comprehensive (loss) income            
Components of other comprehensive income            
Other comprehensive (loss) income before reclassifications, gross     (71) 117    
Tax benefit     (13) 17    
Amounts reclassified from accumulated other comprehensive loss, gross     41 31    
Tax benefit (expense)     (4) (2)    
Other comprehensive (loss) income, net of tax     (52) 163    
Net current-period other comprehensive income (loss)     (47)      
Disposition of a portion of P and A Business     (5)      
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     (71) 116    
Tax benefit     (11) 17    
Amounts reclassified from accumulated other comprehensive loss, gross     42 35    
Tax benefit (expense)     (4) (2)    
Other comprehensive (loss) income, net of tax     (49) 166    
Net current-period other comprehensive income (loss)     (44)      
Disposition of a portion of P and A Business     (5)      
Balance at the end of the period $ (1,322) $ (1,525) $ (1,322) $ (1,525) (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)