Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Debt (Details Textual)

v3.21.1
Note 8 - Debt (Details Textual)
€ in Millions, $ in Millions
3 Months Ended
Jan. 15, 2021
USD ($)
Jan. 15, 2021
EUR (€)
Mar. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Debt Issuance Costs, Net, Total     $ 8 $ 9  
Notes Receivable, Related Parties         $ 380
The 2018 Revolving Credit Facility [Member] | Huntsman International LLC [Member]          
Line of Credit Facility, Maximum Borrowing Capacity     1,200    
Letters of Credit Outstanding, Amount     $ 6    
The 2018 Revolving Credit Facility [Member] | Huntsman International LLC [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Debt Instrument, Basis Spread on Variable Rate [1]     1.50%    
US Accounts Receivable Program Maturing April 2022 [Member] | Huntsman International LLC [Member]          
Letters of Credit Outstanding, Amount     $ 5    
Accounts Receivable Programs [Member] | Huntsman International LLC [Member]          
Pledged Financial Instruments, Not Separately Reported, Loans Receivable Pledged as Collateral, Total     245 $ 198  
Senior Notes Maturing April 2021 [Member]          
Debt Instrument, Amount Redeemed $ 541 € 445      
Debt Instrument, Redemption Price, Percentage 100.00% 100.00%      
Incremental Cash Tax Liability Incurred During Period in Connection with Debt Redemption     $ 15    
[1] Interest rates on borrowings under the Revolving Credit Facility vary based on the type of loan and Huntsman International's debt ratings. The then applicable interest rate as of March 31, 2021 was 1.50% above LIBOR. ?