Sales between segments are generally recognized at external market prices and are eliminated in consolidation. Adjusted EBITDA is presented as a measure of the financial performance of our global business units and for reporting the results of our operating segments. The adjusted EBITDA of our reportable operating segments excludes items that principally apply to our Company as a whole. The revenues and adjusted EBITDA for each of our reportable operating segments are as follows (dollars in millions): ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Three months ? Six months ? ? ended ? ended ? ? June 30, ? June 30, ? 2019 2018 2019 2018 Revenues: ? ? ? ? ? ? ? ? ? Polyurethanes ? $ 1,198 ? $ 1,313 ? $ 2,265 ? $ 2,535 Performance Products ? ? 537 ? ? 593 ? ? 1,077 ? ? 1,196 Advanced Materials ? ? 275 ? ? 292 ? ? 547 ? ? 571 Textile Effects ? ? 215 ? ? 227 ? ? 404 ? ? 427 Corporate and eliminations ? ? (31) ? ? (21) ? ? (65) ? ? (30) Total ? $ 2,194 ? $ 2,404 ? $ 4,228 ? $ 4,699 ? ? ? ? ? ? ? ? ? ? ? ? ? Huntsman Corporation: ? ? ? ? ? ? ? ? ? ? ? ? Segment adjusted EBITDA(1): ? ? ? ? ? ? ? ? ? ? ? ? Polyurethanes ? $ 201 ? $ 269 ? $ 341 ? $ 530 Performance Products ? ? 71 ? ? 94 ? ? 151 ? ? 196 Advanced Materials ? ? 55 ? ? 62 ? ? 108 ? ? 121 Textile Effects ? ? 28 ? ? 29 ? ? 50 ? ? 55 Corporate and other(2) ? ? (37) ? ? (39) ? ? (75) ? ? (82) Total ? ? 318 ? ? 415 ? ? 575 ? ? 820 Reconciliation of adjusted EBITDA to net income: ? ? ? ? ? ? ? ? ? ? ? ? Interest expensecontinuing operations ? ? (29) ? ? (29) ? ? (59) ? ? (56) Interest expensediscontinued operations ? ?  ? ? (11) ? ?  ? ? (20) Income tax expensecontinuing operations ? ? (50) ? ? (4) ? ? (102) ? ? (57) Income tax expensediscontinued operations ? ? (2) ? ? (84) ? ?  ? ? (104) Depreciation and amortizationcontinuing operations ? ? (92) ? ? (83) ? ? (182) ? ? (165) Net income attributable to noncontrolling interests ? ? 8 ? ? 209 ? ? 20 ? ? 285 Other adjustments: ? ? ? ? ? ? ? ? ? ? ? ? Business acquisition and integration expenses ? ?  ? ? (7) ? ? (1) ? ? (8) Merger costs ? ?  ? ? (1) ? ?  ? ? (1) EBITDA from discontinued operations ? ?  ? ? 429 ? ? (1) ? ? 572 Noncontrolling interest of discontinued operations ? ?  ? ? (188) ? ?  ? ? (243) Fair value adjustments to Venator investment ? ? (18) ? ?  ? ? 58 ? ?  Loss on early extinguishment of debt ? ?  ? ? (3) ? ? (23) ? ? (3) Certain legal settlements and related expenses ? ?  ? ? (1) ? ?  ? ? (8) Amortization of pension and postretirement actuarial losses ? ? (17) ? ? (18) ? ? (35) ? ? (35) Restructuring, impairment and plant closing and transition costs ? ?  ? ? (1) ? ? (1) ? ? (4) Net income ? $ 118 ? $ 623 ? $ 249 ? $ 973 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Three months ? Six months ? ? ended ? ended ? ? June 30, ? June 30, ? 2019 2018 2019 2018 Huntsman International: ? ? ? ? ? ? ? ? ? ? Segment adjusted EBITDA(1): ? ? ? ? ? ? ? ? ? ? ? ? Polyurethanes ? $ 201 ? $ 269 ? $ 341 ? $ 530 Performance Products ? ? 71 ? ? 94 ? ? 151 ? ? 196 Advanced Materials ? ? 55 ? ? 62 ? ? 108 ? ? 121 Textile Effects ? ? 28 ? ? 29 ? ? 50 ? ? 55 Corporate and other(2) ? ? (36) ? ? (39) ? ? (72) ? ? (79) Total ? ? 319 ? ? 415 ? ? 578 ? ? 823 Reconciliation of adjusted EBITDA to net income: ? ? ? ? ? ? ? ? ? ? ? ? Interest expensecontinuing operations ? ? (33) ? ? (34) ? ? (68) ? ? (66) Interest expensediscontinued operations ? ?  ? ? (11) ? ?  ? ? (20) Income tax expensecontinuing operations ? ? (49) ? ? (3) ? ? (100) ? ? (55) Income tax expensediscontinued operations ? ? (2) ? ? (84) ? ?  ? ? (104) Depreciation and amortizationcontinuing operations ? ? (92) ? ? (83) ? ? (182) ? ? (164) Net income attributable to noncontrolling interests ? ? 8 ? ? 209 ? ? 20 ? ? 285 Other adjustments: ? ? ? ? ? ? ? ? ? ? ? ? Business acquisition and integration expenses ? ?  ? ? (7) ? ? (1) ? ? (8) Merger costs ? ?  ? ? (1) ? ?  ? ? (1) EBITDA from discontinued operations ? ?  ? ? 429 ? ? (1) ? ? 572 Noncontrolling interest of discontinued operations ? ?  ? ? (188) ? ?  ? ? (243) Fair value adjustments to Venator investment ? ? (18) ? ?  ? ? 58 ? ?  Loss on early extinguishment of debt ? ?  ? ? (3) ? ? (23) ? ? (3) Certain legal settlements and related expenses ? ?  ? ? (1) ? ?  ? ? (8) Amortization of pension and postretirement actuarial losses ? ? (18) ? ? (17) ? ? (37) ? ? (37) Restructuring, impairment and plant closing and transition costs ? ?  ? ? (1) ? ? (1) ? ? (4) Net income ? $ 115 ? $ 620 ? $ 243 ? $ 967 (1) We use segment adjusted EBITDA as the measure of each segments profit or loss. We believe that segment adjusted EBITDA more accurately reflects what the chief operating decision maker uses to make decisions about resources to be allocated to the segments and assess their financial performance. Segment adjusted EBITDA is defined as net income of Huntsman Corporation or Huntsman International, as appropriate, before interest, income tax, depreciation and amortization, net income attributable to noncontrolling interests and certain Corporate and other items, as well as eliminating the following adjustments: (a) business acquisition and integration expenses; (b) merger costs; (c) EBITDA from discontinued operations; (d) noncontrolling interest of discontinued operations; (e) fair value adjustments to Venator investment; (f) loss on early extinguishment of debt; (g) certain legal settlements and related income (expenses); (h) gain (loss) on sale of assets; (i) amortization of pension and postretirement actuarial losses; (j) plant incident remediation costs; (k) U.S. Tax Reform Act impact on noncontrolling interest; and (l) restructuring, impairment, plant closing and transition credits (costs). ? (2) Corporate and other includes unallocated corporate overhead, unallocated foreign exchange gains and losses, LIFO inventory valuation reserve adjustments, loss on early extinguishment of debt, unallocated restructuring, impairment and plant closing costs, nonoperating income and expense and gains and losses on the disposition of corporate assets.