OTHER COMPREHENSIVE INCOME (LOSS) - RECLASSIFICATION DETAILS - HUNTSMAN CORPORATION (Details) - USD ($) $ in Millions  | 
3 Months Ended | |
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Mar. 31, 2017  | 
Mar. 31, 2016  | 
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| Pension and other postretirement benefits adjustments | ||
| Reclassification from accumulated other comprehensive loss | ||
| Total before tax | $ 19 | $ 13 | 
| Income tax expense | (1) | |
| Net of tax | 18 | 13 | 
| Prior service credit | ||
| Reclassification from accumulated other comprehensive loss | ||
| Total before tax | (4) | (4) | 
| Actuarial loss | ||
| Reclassification from accumulated other comprehensive loss | ||
| Total before tax | 23 | 17 | 
| Actuarial loss | Amount reclassified | Discontinued Operations | ||
| Reclassification from accumulated other comprehensive loss | ||
| Total before tax | $ 1 | $ 1 | 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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