Annual report pursuant to Section 13 and 15(d)

Note 3 - Business Combinations and Acquisitions - Pro Forma Revenues and Net Income (Details)

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Note 3 - Business Combinations and Acquisitions - Pro Forma Revenues and Net Income (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
CVC Thermoset and Icynene-Lapolla Acquisitions [Member]      
Revenues $ 6,080 $ 7,140  
Net income 1,063 616  
Net (loss) income 1,031 580  
CVC Thermoset and Icynene-Lapolla Acquisitions [Member] | Huntsman International LLC [Member]      
Revenues 6,080 7,140  
Net income 1,064 605  
Net (loss) income $ 1,032 $ 569  
Demilec Acquisition [Member]      
Revenues     $ 7,662
Net income     639
Net (loss) income     326
Demilec Acquisition [Member] | Huntsman International LLC [Member]      
Revenues     7,662
Net income     625
Net (loss) income     $ 312