Annual report pursuant to Section 13 and 15(d)

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

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OTHER COMPREHENSIVE INCOME (LOSS) - COMPONENTS AND CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS - HUNTSMAN INTERNATIONAL (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Components of other comprehensive income      
Balance at the beginning of the period $ 2,834 $ 936 $ 1,084
Balance at the end of the period 2,488 2,834 936
Total      
Components of other comprehensive income      
Other comprehensive (loss) income before reclassifications, gross (316) 194  
Tax benefit 18 46  
Amounts reclassified from accumulated other comprehensive loss, gross 77 70  
Tax expense (19) (14)  
Net current-period other comprehensive income (loss) (240) 296  
Deconsolidation of Venator 360    
Tax expense (51)    
Total | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Components of other comprehensive income      
Balance at the beginning of the period (1,406) (1,727)  
Revised beginning balance   (1,416)  
Other comprehensive (loss) income before reclassifications, gross (318) 194  
Tax benefit 20 46  
Amounts reclassified from accumulated other comprehensive loss, gross 80 76  
Contribution of other comprehensive income from Parent   20  
Tax expense (19) (15)  
Net current-period other comprehensive income (loss) (237) 321  
Deconsolidation of Venator 360    
Tax expense (51)    
Balance at the end of the period (1,344) (1,406) (1,727)
Foreign currency translation adjustment      
Components of other comprehensive income      
Other comprehensive (loss) income before reclassifications, gross (186) 175  
Tax benefit (6) 35  
Net current-period other comprehensive income (loss) (192) 210  
Deconsolidation of Venator 70    
Foreign currency translation adjustment, tax 71 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)  
Revised beginning balance   (252)  
Other comprehensive (loss) income before reclassifications, gross (188) 175  
Tax benefit (6) 35  
Net current-period other comprehensive income (loss) (194) 210  
Deconsolidation of Venator 70    
Balance at the end of the period (376) (252) (462)
Foreign currency translation adjustment, tax 57 51 86
Pension and other postretirement benefits adjustments      
Components of other comprehensive income      
Other comprehensive (loss) income before reclassifications, gross (130) 11  
Tax benefit 27 9  
Amounts reclassified from accumulated other comprehensive loss, gross 77 80 53
Tax expense (13) (14) (15)
Net current-period other comprehensive income (loss) (39) 86  
Deconsolidation of Venator 285    
Tax expense (51)    
Pension and other postretirement benefits adjustments, tax 135 172 177
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)  
Revised beginning balance   (1,174)  
Other comprehensive (loss) income before reclassifications, gross (130) 12  
Tax benefit 27 9  
Amounts reclassified from accumulated other comprehensive loss, gross 80 86 61
Contribution of other comprehensive income from Parent   20  
Tax expense (14) (15) (16)
Net current-period other comprehensive income (loss) (37) 112  
Deconsolidation of Venator 285    
Tax expense (51)    
Balance at the end of the period (977) (1,174) (1,286)
Pension and other postretirement benefits adjustments, tax 161 199 205
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)  
Deconsolidation of Venator 5    
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  
Revised beginning balance   3  
Other comprehensive (loss) income before reclassifications, gross   (1)  
Net current-period other comprehensive income (loss)   (1)  
Deconsolidation of Venator 5    
Balance at the end of the period 8 3 4
Other, net      
Components of other comprehensive income      
Other comprehensive (loss) income before reclassifications, gross   9  
Tax benefit (3) 2  
Amounts reclassified from accumulated other comprehensive loss, gross   (10)  
Tax expense (6)    
Net current-period other comprehensive income (loss) (9) 1  
Other, net | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Components of other comprehensive income      
Balance at the beginning of the period 17 17  
Revised beginning balance   7  
Other comprehensive (loss) income before reclassifications, gross   8  
Tax benefit (1) 2  
Amounts reclassified from accumulated other comprehensive loss, gross   (10)  
Tax expense (5)    
Net current-period other comprehensive income (loss) (6)    
Balance at the end of the period 1 17 17
Amounts attributable to noncontrolling interests      
Components of other comprehensive income      
Other comprehensive (loss) income before reclassifications, gross 47 (22)  
Net current-period other comprehensive income (loss) 47 (22)  
Disposition of a portion of Venator (5) 129  
Deconsolidation of Venator (149)    
Amounts attributable to noncontrolling interests | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES      
Components of other comprehensive income      
Balance at the beginning of the period 143 36  
Revised beginning balance   143  
Other comprehensive (loss) income before reclassifications, gross 47 (22)  
Net current-period other comprehensive income (loss) 47 (22)  
Disposition of a portion of Venator (5) 129  
Deconsolidation of Venator (149)    
Balance at the end of the period 36 143 36
Accumulated other comprehensive (loss) income      
Components of other comprehensive income      
Other comprehensive (loss) income before reclassifications, gross (269) 172  
Tax benefit 18 46  
Amounts reclassified from accumulated other comprehensive loss, gross 77 70  
Tax expense (19) (14)  
Net current-period other comprehensive income (loss) (193) 274  
Disposition of a portion of Venator (5) 129  
Deconsolidation of Venator 211    
Tax expense (51)    
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) (1,316)
Revised beginning balance   (1,273)  
Other comprehensive (loss) income before reclassifications, gross (271) 172  
Tax benefit 20 46  
Amounts reclassified from accumulated other comprehensive loss, gross 80 76  
Contribution of other comprehensive income from Parent   20  
Tax expense (19) (15)  
Net current-period other comprehensive income (loss) (190) 299  
Disposition of a portion of Venator (5) 129  
Deconsolidation of Venator 211    
Tax expense (51)    
Balance at the end of the period $ (1,308) (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)