Huntsman Corporation Annual report pursuant to Section 13 and 15(d)

Note 13 - Restructuring, Impairment and Plant Closing Costs (Credits) (Details Textual)

Note 13 - Restructuring, Impairment and Plant Closing Costs (Credits) (Details Textual) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2023	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Proceeds from Sale of Productive Assets, Total				$ 75	$ 50	$ 0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal				281	49	(3)
Restructuring Reserve, Accrual Adjustment				(1)	(4)	(31)
Corporate and Reconciling Items [Member]
Restructuring Reserve, Accrual Adjustment				0	0	(1)
Corporate and Reconciling Items [Member] \| Corporate Initiatives [Member]
Restructuring Charges, Total						15
Polyurethanes [Member] \| Operating Segments [Member]
Restructuring Reserve, Accrual Adjustment				0	0	0
Performance Products [Member] \| Operating Segments [Member]
Restructuring Reserve, Accrual Adjustment				0	0	(1)
Advanced Materials [Member] \| Operating Segments [Member]
Restructuring Reserve, Accrual Adjustment				(1)	0	0
Textile Effects [Member] \| Operating Segments [Member]
Restructuring Reserve, Accrual Adjustment				0	(4)	(29)
Textile Effects [Member] \| Operating Segments [Member] \| Basel, Switzerland [Member]
Restructuring and Related Cost, Gain on Sale of Land						4
Textile Effects [Member] \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| Basel, Switzerland Production Facilities and Support Offices [Member]
Proceeds from Sale of Productive Assets, Total	$ 49
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 49
Employee Severance [Member]
Restructuring Reserve, Accrual Adjustment				0	(2)	(2)
Employee Severance [Member] \| Polyurethanes [Member]
Restructuring Charges, Total				9
Restructuring and Related Cost, Expected Cost, Total				4
Employee Severance [Member] \| Performance Products [Member]
Restructuring Charges, Total				4
Employee Severance [Member] \| Advanced Materials [Member]
Restructuring Charges, Total				10
Employee Severance [Member] \| Textile Effects [Member]
Restructuring Charges, Total				7
Program to Optimize Downstream Footprint [Member] \| Polyurethanes [Member]
Restructuring Charges, Total				12
Program to Optimize Downstream Footprint [Member] \| Polyurethanes [Member] \| Minimum [Member]
Restructuring and Related Cost, Expected Cost, Total				15
Program to Optimize Downstream Footprint [Member] \| Polyurethanes [Member] \| Maximum [Member]
Restructuring and Related Cost, Expected Cost, Total				20
Non-cancelable Lease Cost and Contract Termination Costs [Member]
Restructuring Reserve, Accrual Adjustment				$ 0	0	$ (29)
Non-cancelable Lease Cost and Contract Termination Costs [Member] \| Textile Effects [Member] \| Operating Segments [Member] \| Basel, Switzerland [Member]
Restructuring Settlement To Be Made		$ 10
Payments for Restructuring					$ 8
Restructuring Reserve, Accrual Adjustment		$ 29
Non-cancelable Lease Cost and Contract Termination Costs [Member] \| Textile Effects [Member] \| Operating Segments [Member] \| Basel, Switzerland [Member] \| Forecast [Member]
Payments for Restructuring			$ 2