OTHER COMPREHENSIVE INCOME - COMPONENTS AND CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS - HUNTSMAN INTERNATIONAL (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 |
Components of other comprehensive income | | | | | | |
Other comprehensive (loss) income, net of tax | $ (181) | $ 73 | $ (78) | $ 170 | | |
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Balance at the beginning of the period | | | 2,834 | 936 | $ 936 | |
Revised beginning balance | | | | | 2,834 | |
Other comprehensive (loss) income, net of tax | (180) | 74 | (75) | 173 | | |
Balance at the end of the period | 3,674 | 1,332 | 3,674 | 1,332 | 2,834 | $ 936 |
Total | | | | | | |
Components of other comprehensive income | | | | | | |
Other comprehensive (loss) income before reclassifications, gross | | | (102) | 124 | | |
Tax benefit | | | (13) | 17 | | |
Amounts reclassified from accumulated other comprehensive loss, gross | | | 41 | 31 | | |
Tax benefit (expense) | | | (4) | (2) | | |
Other comprehensive (loss) income, net of tax | | | | 170 | | |
Net current-period other comprehensive income (loss) | | | (78) | | | |
Total | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Balance at the beginning of the period | | | (1,406) | (1,727) | (1,727) | |
Revised beginning balance | | | | | (1,416) | |
Other comprehensive (loss) income before reclassifications, gross | | | (102) | 123 | | |
Tax benefit | | | (11) | 17 | | |
Amounts reclassified from accumulated other comprehensive loss, gross | | | 42 | 35 | | |
Tax benefit (expense) | | | (4) | (2) | | |
Other comprehensive (loss) income, net of tax | | | | 173 | | |
Net current-period other comprehensive income (loss) | | | (75) | | | |
Balance at the end of the period | (1,491) | (1,554) | (1,491) | (1,554) | (1,406) | (1,727) |
Foreign currency translation adjustment | | | | | | |
Components of other comprehensive income | | | | | | |
Other comprehensive (loss) income before reclassifications, gross | | | (105) | 118 | | |
Tax benefit | | | (10) | 17 | | |
Other comprehensive (loss) income, net of tax | | | | 135 | | |
Net current-period other comprehensive income (loss) | | | (115) | | | |
Foreign currency translation adjustment, tax | | | 75 | 83 | 65 | 100 |
Foreign currency translation adjustment | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Balance at the beginning of the period | | | (252) | (462) | (462) | |
Revised beginning balance | | | | | (252) | |
Other comprehensive (loss) income before reclassifications, gross | | | (105) | 117 | | |
Tax benefit | | | (10) | 17 | | |
Other comprehensive (loss) income, net of tax | | | | 134 | | |
Net current-period other comprehensive income (loss) | | | (115) | | | |
Balance at the end of the period | (367) | (328) | (367) | (328) | (252) | (462) |
Foreign currency translation adjustment, tax | | | 61 | 69 | 51 | 86 |
Pension and other postretirement benefits adjustments | | | | | | |
Components of other comprehensive income | | | | | | |
Other comprehensive (loss) income before reclassifications, gross | | | 2 | | | |
Amounts reclassified from accumulated other comprehensive loss, gross | 19 | 20 | 41 | 39 | | |
Tax benefit (expense) | (3) | (1) | 2 | (2) | | |
Other comprehensive (loss) income, net of tax | | | | 37 | | |
Net current-period other comprehensive income (loss) | | | 45 | | | |
Pension and other postretirement benefits adjustments, tax | | | 174 | 175 | 172 | 177 |
Pension and other postretirement benefits adjustments | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Balance at the beginning of the period | | | (1,174) | (1,286) | (1,286) | |
Revised beginning balance | | | | | (1,174) | |
Other comprehensive (loss) income before reclassifications, gross | | | 2 | | | |
Amounts reclassified from accumulated other comprehensive loss, gross | 20 | 22 | 42 | 43 | | |
Tax benefit (expense) | (4) | (1) | 1 | (2) | | |
Other comprehensive (loss) income, net of tax | | | | 41 | | |
Net current-period other comprehensive income (loss) | | | 45 | | | |
Balance at the end of the period | (1,129) | (1,245) | (1,129) | (1,245) | (1,174) | (1,286) |
Pension and other postretirement benefits adjustments, tax | | | 200 | 203 | 199 | 205 |
Other comprehensive income of unconsolidated affiliates | | | | | | |
Components of other comprehensive income | | | | | | |
Other comprehensive (loss) income before reclassifications, gross | | | 1 | | | |
Net current-period other comprehensive income (loss) | | | 1 | | | |
Other comprehensive income of unconsolidated affiliates | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Balance at the beginning of the period | | | 3 | 4 | 4 | |
Revised beginning balance | | | | | 3 | |
Other comprehensive (loss) income before reclassifications, gross | | | 1 | | | |
Net current-period other comprehensive income (loss) | | | 1 | | | |
Balance at the end of the period | 4 | 4 | 4 | 4 | 3 | 4 |
Other, net | | | | | | |
Components of other comprehensive income | | | | | | |
Other comprehensive (loss) income before reclassifications, gross | | | | 6 | | |
Tax benefit | | | (3) | | | |
Amounts reclassified from accumulated other comprehensive loss, gross | | | | (8) | | |
Tax benefit (expense) | | | (6) | | | |
Other comprehensive (loss) income, net of tax | | | | (2) | | |
Net current-period other comprehensive income (loss) | | | (9) | | | |
Other, net | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Balance at the beginning of the period | | | 17 | 17 | 17 | |
Revised beginning balance | | | | | 7 | |
Other comprehensive (loss) income before reclassifications, gross | | | | 6 | | |
Tax benefit | | | (1) | | | |
Amounts reclassified from accumulated other comprehensive loss, gross | | | | (8) | | |
Tax benefit (expense) | | | (5) | | | |
Other comprehensive (loss) income, net of tax | | | | (2) | | |
Net current-period other comprehensive income (loss) | | | (6) | | | |
Balance at the end of the period | 1 | 15 | 1 | 15 | 17 | 17 |
Amounts attributable to noncontrolling interests | | | | | | |
Components of other comprehensive income | | | | | | |
Other comprehensive (loss) income before reclassifications, gross | | | 31 | (7) | | |
Other comprehensive (loss) income, net of tax | | | | (7) | | |
Net current-period other comprehensive income (loss) | | | 31 | | | |
Disposition of a portion of P and A Business | | | (5) | | | |
Amounts attributable to noncontrolling interests | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Balance at the beginning of the period | | | 143 | 36 | 36 | |
Revised beginning balance | | | | | 143 | |
Other comprehensive (loss) income before reclassifications, gross | | | 31 | (7) | | |
Other comprehensive (loss) income, net of tax | | | | (7) | | |
Net current-period other comprehensive income (loss) | | | 31 | | | |
Disposition of a portion of P and A Business | | | (5) | | | |
Balance at the end of the period | 169 | 29 | 169 | 29 | 143 | 36 |
Accumulated other comprehensive (loss) income | | | | | | |
Components of other comprehensive income | | | | | | |
Other comprehensive (loss) income before reclassifications, gross | | | (71) | 117 | | |
Tax benefit | | | (13) | 17 | | |
Amounts reclassified from accumulated other comprehensive loss, gross | | | 41 | 31 | | |
Tax benefit (expense) | | | (4) | (2) | | |
Other comprehensive (loss) income, net of tax | | | (52) | 163 | | |
Net current-period other comprehensive income (loss) | | | (47) | | | |
Disposition of a portion of P and A Business | | | (5) | | | |
Accumulated other comprehensive (loss) income | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Balance at the beginning of the period | | | (1,263) | (1,691) | (1,691) | |
Revised beginning balance | | | | | (1,273) | |
Other comprehensive (loss) income before reclassifications, gross | | | (71) | 116 | | |
Tax benefit | | | (11) | 17 | | |
Amounts reclassified from accumulated other comprehensive loss, gross | | | 42 | 35 | | |
Tax benefit (expense) | | | (4) | (2) | | |
Other comprehensive (loss) income, net of tax | | | (49) | 166 | | |
Net current-period other comprehensive income (loss) | | | (44) | | | |
Disposition of a portion of P and A Business | | | (5) | | | |
Balance at the end of the period | $ (1,322) | $ (1,525) | $ (1,322) | $ (1,525) | (1,263) | $ (1,691) |
Asu 2016-01 | Total | | | | | | |
Components of other comprehensive income | | | | | | |
Cumulative effect of changes in fair value of equity investments | | | | | (10) | |
Asu 2016-01 | Total | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Cumulative effect of changes in fair value of equity investments | | | | | (10) | |
Asu 2016-01 | Other, net | | | | | | |
Components of other comprehensive income | | | | | | |
Cumulative effect of changes in fair value of equity investments | | | | | (10) | |
Asu 2016-01 | Other, net | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Cumulative effect of changes in fair value of equity investments | | | | | (10) | |
Asu 2016-01 | Accumulated other comprehensive (loss) income | | | | | | |
Components of other comprehensive income | | | | | | |
Cumulative effect of changes in fair value of equity investments | | | | | (10) | |
Asu 2016-01 | Accumulated other comprehensive (loss) income | HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | | | | | | |
Components of other comprehensive income | | | | | | |
Cumulative effect of changes in fair value of equity investments | | | | | $ (10) | |