| Schedule of Segment Reporting Information, by Segment [Table Text Block] | 
    
|   | 
  | 
  Three months   | 
  | 
  | 
  Six months   | 
  | 
 
|   | 
  | 
  ended   | 
  | 
  | 
  ended   | 
  | 
 
|   | 
  | 
  June 30,   | 
  | 
  | 
  June 30,   | 
  | 
 
|   | 
  | 
  2023   | 
  | 
  | 
  2022   | 
  | 
  | 
  2023   | 
  | 
  | 
  2022   | 
  | 
 
|   Revenues:   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Polyurethanes   | 
  | 
$ | 
1,012 | 
  | 
  | 
$ | 
1,353 | 
  | 
  | 
$ | 
2,003 | 
  | 
  | 
$ | 
2,739 | 
  | 
 
|   Performance Products   | 
  | 
  | 
307 | 
  | 
  | 
  | 
492 | 
  | 
  | 
  | 
641 | 
  | 
  | 
  | 
972 | 
  | 
 
|   Advanced Materials   | 
  | 
  | 
284 | 
  | 
  | 
  | 
336 | 
  | 
  | 
  | 
573 | 
  | 
  | 
  | 
671 | 
  | 
 
|   Total reportable segments’ revenues   | 
  | 
  | 
1,603 | 
  | 
  | 
  | 
2,181 | 
  | 
  | 
  | 
3,217 | 
  | 
  | 
  | 
4,382 | 
  | 
 
|   Intersegment eliminations   | 
  | 
  | 
(7 | 
) | 
  | 
  | 
(11 | 
) | 
  | 
  | 
(15 | 
) | 
  | 
  | 
(20 | 
) | 
 
|   Total   | 
  | 
$ | 
1,596 | 
  | 
  | 
$ | 
2,170 | 
  | 
  | 
$ | 
3,202 | 
  | 
  | 
$ | 
4,362 | 
  | 
 
|   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Huntsman Corporation:   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Segment adjusted EBITDA(1):   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Polyurethanes   | 
  | 
$ | 
88 | 
  | 
  | 
$ | 
229 | 
  | 
  | 
$ | 
154 | 
  | 
  | 
$ | 
453 | 
  | 
 
|   Performance Products   | 
  | 
  | 
55 | 
  | 
  | 
  | 
152 | 
  | 
  | 
  | 
126 | 
  | 
  | 
  | 
298 | 
  | 
 
|   Advanced Materials   | 
  | 
  | 
51 | 
  | 
  | 
  | 
67 | 
  | 
  | 
  | 
99 | 
  | 
  | 
  | 
134 | 
  | 
 
|   Total reportable segments’ adjusted EBITDA   | 
  | 
  | 
194 | 
  | 
  | 
  | 
448 | 
  | 
  | 
  | 
379 | 
  | 
  | 
  | 
885 | 
  | 
 
|   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Reconciliation of total reportable segments’ adjusted EBITDA to income from continuing operations before income taxes:   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Interest expense, net—continuing operations   | 
  | 
  | 
(15 | 
) | 
  | 
  | 
(16 | 
) | 
  | 
  | 
(33 | 
) | 
  | 
  | 
(30 | 
) | 
 
|   Depreciation and amortization—continuing operations   | 
  | 
  | 
(70 | 
) | 
  | 
  | 
(68 | 
) | 
  | 
  | 
(139 | 
) | 
  | 
  | 
(135 | 
) | 
 
|   Corporate and other costs, net(2)   | 
  | 
  | 
(38 | 
) | 
  | 
  | 
(38 | 
) | 
  | 
  | 
(87 | 
) | 
  | 
  | 
(88 | 
) | 
 
|   Net income attributable to noncontrolling interests   | 
  | 
  | 
12 | 
  | 
  | 
  | 
14 | 
  | 
  | 
  | 
25 | 
  | 
  | 
  | 
31 | 
  | 
 
|   Other adjustments:   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Business acquisition and integration expenses and purchase accounting inventory adjustments   | 
  | 
  | 
(2 | 
) | 
  | 
  | 
(4 | 
) | 
  | 
  | 
(3 | 
) | 
  | 
  | 
(10 | 
) | 
 
|   Fair value adjustments to Venator investment, net   | 
  | 
  | 
(4 | 
) | 
  | 
  | 
— | 
  | 
  | 
  | 
(5 | 
) | 
  | 
  | 
(2 | 
) | 
 
|   Certain legal and other settlements and related expenses   | 
  | 
  | 
(1 | 
) | 
  | 
  | 
(2 | 
) | 
  | 
  | 
(2 | 
) | 
  | 
  | 
(14 | 
) | 
 
|   Costs associated with the Albemarle Settlement, net   | 
  | 
  | 
— | 
  | 
  | 
  | 
(1 | 
) | 
  | 
  | 
— | 
  | 
  | 
  | 
(2 | 
) | 
 
|   Gain (loss) on sale of business/assets   | 
  | 
  | 
1 | 
  | 
  | 
  | 
(7 | 
) | 
  | 
  | 
1 | 
  | 
  | 
  | 
(11 | 
) | 
 
|   Income from transition services arrangements   | 
  | 
  | 
— | 
  | 
  | 
  | 
1 | 
  | 
  | 
  | 
— | 
  | 
  | 
  | 
2 | 
  | 
 
|   Certain nonrecurring information technology project implementation costs   | 
  | 
  | 
(1 | 
) | 
  | 
  | 
(1 | 
) | 
  | 
  | 
(3 | 
) | 
  | 
  | 
(3 | 
) | 
 
|   Amortization of pension and postretirement actuarial losses   | 
  | 
  | 
(7 | 
) | 
  | 
  | 
(10 | 
) | 
  | 
  | 
(15 | 
) | 
  | 
  | 
(22 | 
) | 
 
|   Plant incident remediation credits   | 
  | 
  | 
— | 
  | 
  | 
  | 
5 | 
  | 
  | 
  | 
— | 
  | 
  | 
  | 
5 | 
  | 
 
|   Restructuring, impairment and plant closing and transition costs(3)   | 
  | 
  | 
(8 | 
) | 
  | 
  | 
(27 | 
) | 
  | 
  | 
(2 | 
) | 
  | 
  | 
(30 | 
) | 
 
|   Income from continuing operations before income taxes   | 
  | 
  | 
61 | 
  | 
  | 
  | 
294 | 
  | 
  | 
  | 
116 | 
  | 
  | 
  | 
576 | 
  | 
 
|   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Income tax expense—continuing operations   | 
  | 
  | 
(28 | 
) | 
  | 
  | 
(65 | 
) | 
  | 
  | 
(39 | 
) | 
  | 
  | 
(125 | 
) | 
 
|   (Loss) income from discontinued operations, net of tax   | 
  | 
  | 
(2 | 
) | 
  | 
  | 
13 | 
  | 
  | 
  | 
120 | 
  | 
  | 
  | 
31 | 
  | 
 
|   Net income   | 
  | 
$ | 
31 | 
  | 
  | 
$ | 
242 | 
  | 
  | 
$ | 
197 | 
  | 
  | 
$ | 
482 | 
  | 
 
 
    
|   | 
  | 
  Three months   | 
  | 
  | 
  Six months   | 
  | 
 
|   | 
  | 
  ended   | 
  | 
  | 
  ended   | 
  | 
 
|   | 
  | 
  June 30,   | 
  | 
  | 
  June 30,   | 
  | 
 
|   | 
  | 
  2023   | 
  | 
  | 
  2022   | 
  | 
  | 
  2023   | 
  | 
  | 
  2022   | 
  | 
 
|   Huntsman International:   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Segment adjusted EBITDA(1):   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Polyurethanes   | 
  | 
$ | 
88 | 
  | 
  | 
$ | 
229 | 
  | 
  | 
$ | 
154 | 
  | 
  | 
$ | 
453 | 
  | 
 
|   Performance Products   | 
  | 
  | 
55 | 
  | 
  | 
  | 
152 | 
  | 
  | 
  | 
126 | 
  | 
  | 
  | 
298 | 
  | 
 
|   Advanced Materials   | 
  | 
  | 
51 | 
  | 
  | 
  | 
67 | 
  | 
  | 
  | 
99 | 
  | 
  | 
  | 
134 | 
  | 
 
|   Total reportable segments’ adjusted EBITDA   | 
  | 
  | 
194 | 
  | 
  | 
  | 
448 | 
  | 
  | 
  | 
379 | 
  | 
  | 
  | 
885 | 
  | 
 
|   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Reconciliation of total reportable segments’ adjusted EBITDA to income from continuing operations before income taxes:   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Interest expense, net—continuing operations   | 
  | 
  | 
(15 | 
) | 
  | 
  | 
(16 | 
) | 
  | 
  | 
(33 | 
) | 
  | 
  | 
(30 | 
) | 
 
|   Depreciation and amortization—continuing operations   | 
  | 
  | 
(70 | 
) | 
  | 
  | 
(68 | 
) | 
  | 
  | 
(139 | 
) | 
  | 
  | 
(135 | 
) | 
 
|   Corporate and other costs, net(2)   | 
  | 
  | 
(38 | 
) | 
  | 
  | 
(36 | 
) | 
  | 
  | 
(85 | 
) | 
  | 
  | 
(83 | 
) | 
 
|   Net income attributable to noncontrolling interests   | 
  | 
  | 
12 | 
  | 
  | 
  | 
14 | 
  | 
  | 
  | 
25 | 
  | 
  | 
  | 
31 | 
  | 
 
|   Other adjustments:   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Business acquisition and integration expenses and purchase accounting inventory adjustments   | 
  | 
  | 
(2 | 
) | 
  | 
  | 
(4 | 
) | 
  | 
  | 
(3 | 
) | 
  | 
  | 
(10 | 
) | 
 
|   Fair value adjustments to Venator investment, net   | 
  | 
  | 
(4 | 
) | 
  | 
  | 
— | 
  | 
  | 
  | 
(5 | 
) | 
  | 
  | 
(2 | 
) | 
 
|   Certain legal and other settlements and related expenses   | 
  | 
  | 
(1 | 
) | 
  | 
  | 
(2 | 
) | 
  | 
  | 
(2 | 
) | 
  | 
  | 
(14 | 
) | 
 
|   Costs associated with the Albemarle Settlement, net   | 
  | 
  | 
— | 
  | 
  | 
  | 
(1 | 
) | 
  | 
  | 
— | 
  | 
  | 
  | 
(2 | 
) | 
 
|   Gain (loss) on sale of business/assets   | 
  | 
  | 
1 | 
  | 
  | 
  | 
(7 | 
) | 
  | 
  | 
1 | 
  | 
  | 
  | 
(11 | 
) | 
 
|   Income from transition services arrangements   | 
  | 
  | 
— | 
  | 
  | 
  | 
1 | 
  | 
  | 
  | 
— | 
  | 
  | 
  | 
2 | 
  | 
 
|   Certain nonrecurring information technology project implementation costs   | 
  | 
  | 
(1 | 
) | 
  | 
  | 
(1 | 
) | 
  | 
  | 
(3 | 
) | 
  | 
  | 
(3 | 
) | 
 
|   Amortization of pension and postretirement actuarial losses   | 
  | 
  | 
(7 | 
) | 
  | 
  | 
(10 | 
) | 
  | 
  | 
(15 | 
) | 
  | 
  | 
(22 | 
) | 
 
|   Plant incident remediation credits   | 
  | 
  | 
— | 
  | 
  | 
  | 
5 | 
  | 
  | 
  | 
— | 
  | 
  | 
  | 
5 | 
  | 
 
|   Restructuring, impairment and plant closing and transition costs(3)   | 
  | 
  | 
(8 | 
) | 
  | 
  | 
(27 | 
) | 
  | 
  | 
(2 | 
) | 
  | 
  | 
(30 | 
) | 
 
|   Income from continuing operations before income taxes   | 
  | 
  | 
61 | 
  | 
  | 
  | 
296 | 
  | 
  | 
  | 
118 | 
  | 
  | 
  | 
581 | 
  | 
 
|   | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
|   Income tax expense—continuing operations   | 
  | 
  | 
(28 | 
) | 
  | 
  | 
(66 | 
) | 
  | 
  | 
(39 | 
) | 
  | 
  | 
(126 | 
) | 
 
|   (Loss) income from discontinued operations, net of tax   | 
  | 
  | 
(2 | 
) | 
  | 
  | 
13 | 
  | 
  | 
  | 
120 | 
  | 
  | 
  | 
31 | 
  | 
 
|   Net income   | 
  | 
$ | 
31 | 
  | 
  | 
$ | 
243 | 
  | 
  | 
$ | 
199 | 
  | 
  | 
$ | 
486 | 
  | 
 
 
   
 |