Huntsman Corporation Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Restructuring, Impairment and Plant Closing Costs (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Employee Severance [Member] \| Corporate Segment [Member]
Restructuring Charges, Total	$ 14
Restructuring and Related Cost, Expected Cost, Total	2
Employee Severance [Member] \| Textile Effects [Member]
Restructuring Charges, Total		$ 2
Program to Optimize Downstream Footprint [Member] \| Polyurethanes [Member]
Restructuring Charges, Total	1
Program to Optimize Downstream Footprint [Member] \| Polyurethanes [Member] \| Minimum [Member]
Restructuring and Related Cost, Expected Cost, Total	10
Program to Optimize Downstream Footprint [Member] \| Polyurethanes [Member] \| Maximum [Member]
Restructuring and Related Cost, Expected Cost, Total	$ 12