Annual report pursuant to Section 13 and 15(d)

DEBT - CREDIT FACILITIES (Details)

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DEBT - CREDIT FACILITIES (Details)
€ in Millions, $ in Millions
12 Months Ended
Sep. 30, 2019
Sep. 24, 2019
USD ($)
May 21, 2018
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Sep. 24, 2019
EUR (€)
Debt              
Loss on early extinguishment of debt       $ 23 $ 3 $ 54  
Sasol Huntsman GmbH and Co. KG              
Debt              
Percentage of joint interest acquired 50.00%            
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES              
Debt              
Loss on early extinguishment of debt       23 $ 3 $ 54  
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | Sasol Huntsman GmbH and Co. KG              
Debt              
Percentage of joint interest acquired 50.00%            
2018 Revolving Credit Facility | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES              
Debt              
Committed Amount       1,200      
Optional increase to committed amount of facility       500      
Principal Outstanding       40      
Carrying value       40      
Amount of letter of credit and bank guarantees issued and outstanding       $ 7      
2018 Revolving Credit Facility | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | LIBOR              
Debt              
Basis spread (as a percent)       1.50%      
Prior Credit Facility | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES              
Debt              
Loss on early extinguishment of debt     $ 3        
Term loan | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES              
Debt              
Principal amount of debt   $ 101         € 92
Term loan | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | EURIBOR              
Debt              
Basis spread (as a percent)   0.75%          
Term loan | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | EURIBOR Floor              
Debt              
Basis spread (as a percent)   0.00%