SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - NET INCOME PER SHARE (Details) - USD ($) shares in Millions, $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Basic and diluted income from continuing operations: | |||||||||||
| Income from continuing operations attributable to Huntsman Corporation | $ 393 | $ 608 | $ 406 | ||||||||
| Basic and diluted net income: | |||||||||||
| Net income (loss) attributable to Huntsman Corporation or Huntsman International | $ 303 | $ 30 | $ 110 | $ 119 | $ (340) | $ (11) | $ 414 | $ 274 | $ 562 | $ 337 | $ 636 |
| Denominator: | |||||||||||
| Weighted average shares outstanding (in shares) | 228.9 | 238.1 | 238.4 | ||||||||
| Dilutive shares: | |||||||||||
| Stock-based awards (in shares) | 1.7 | 3.5 | 5.5 | ||||||||
| Total weighted average shares outstanding, including dilutive shares | 230.6 | 241.6 | 243.9 | ||||||||
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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