INCOME TAXES Footnote	9 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes [Note Text Block]	NOTE 13 - INCOME TAXES International Paper made income tax payments, net of refunds, of $195 million and $122 million for the nine months ended September 30, 2018 and 2017, respectively. The Company currently estimates, that as a result of ongoing discussions, pending tax settlements and expirations of statutes of limitations, the amount of unrecognized tax benefits could be reduced by approximately $2 million during the next 12 months. International Paper uses the flow-through method to account for investment tax credits earned on eligible open loop-biomass facilities and Combined Heat and Power system expenditures. Under this method, the investment tax credits are recognized as a reduction to income tax expense in the year they are earned rather than a reduction in the asset basis. The Company recorded a tax benefit of $6 million and $29 million for the nine months ended September 30, 2018 and 2017, respectively. The 2017 amount includes $2 million which is now reported as discontinued operations. On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the Tax Act). The Tax Act makes broad and complex changes to the U.S. tax code, including, but not limited to, (1) reducing the U.S. federal corporate tax rate from 35% to 21%; (2) requiring companies to pay a one-time deemed repatriation transition tax (the Transition Tax) on certain earnings of foreign subsidiaries; (3) generally eliminating U.S. federal income taxes on dividends from foreign subsidiaries; (4) requiring a current inclusion in U.S. federal taxable income of certain earnings of controlled foreign corporations; (5) eliminating the corporate alternative minimum tax (AMT) and changing how AMT credits can be realized; (6) capital expensing; (7) eliminating the deduction on U.S. manufacturing activities; and (8) creating new limitations on deductible interest expense and executive compensation. The Securities Exchange Commission staff issued Staff Accounting Bulletin (SAB) 118 which provides guidance on accounting for the tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend beyond one year from the Tax Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Tax Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain income tax effects of the Tax Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of the Tax Act. In connection with our initial analysis of the impact of the Tax Act, we recorded a provisional net tax benefit of $1.22 billion in the period ending December 31, 2017. The net tax benefit primarily consisted of a net tax benefit for the re-measurement of U.S. deferred taxes of $1.454 billion and an expense for the Transition Tax of $231 million. For various reasons that are discussed more fully below, as of the quarter ended September 30, 2018, we have not completed our accounting for the income tax effects of the Tax Act. However, in the third quarter, we have updated certain estimates and recorded a beneficial adjustment of $36 million to our provisional estimate. The provisional estimates and related adjustments relate to the following: Reduction of U.S. federal corporate tax rate: The Tax Act reduced the corporate tax rate to 21%, effective January 1, 2018. For certain of our deferred tax assets and liabilities, we recorded a provisional net decrease of $1.451 billion with a corresponding adjustment to deferred income tax benefit in the same amount for the year ended December 31, 2017. After the completion of the federal income tax return during the reporting period, we recognized a beneficial adjustment of $11 million from the remeasurement of certain temporary differences. The effect of the measurement-period adjustment on the 2018 third quarter effective tax rate was approximately 2.0%. A total decrease to the deferred tax liabilities to date of $1.462 billion has been recorded with a corresponding adjustment of $1.462 billion to income tax benefit. However, our accounting for these items is not yet complete because the state tax effect of adjustments made to federal temporary differences is not yet finalized. We will complete our accounting in the fourth quarter. Deemed Repatriation Transition Tax: This is a tax on previously untaxed accumulated and current earnings and profits (“E&P”) of foreign subsidiaries. To determine the amount of the transition tax, we must determine, in addition to other factors, the amount of post-1986 E&P of the relevant subsidiaries, as well as the amount of non-U.S. income taxes paid on such earnings. We were able to make a reasonable estimate of the Transition Tax and recorded a provisional Transition Tax obligation of $231 million in the tax period ending December 31, 2017. On the basis of revised E&P computations that were calculated during the reporting period, as well as the impacts of guidance received from the IRS pertaining to the Transition Tax computation, we recognized an income tax benefit adjustment of $25 million related to the Transition Tax obligation. The effect of the measurement-period adjustment on the 2018 third quarter effective tax rate was approximately 4.5%. A total Transition Tax obligation to date of $206 million has been recorded as of September 30, 2018. Due to the fiscal year end of several significant foreign subsidiaries, we are continuing to gather additional information necessary to complete the calculation of the Transition Tax, and our accounting for this item is not yet complete. We will complete our accounting in the fourth quarter. Our accounting for the following elements of the Tax Act is incomplete as of September 30, 2018. The estimates reported in the period ending December 31, 2017, were not adjusted in the period ending September 30, 2018. As of September 30, 2018, there has been no change in previous estimates made and reported in the period ending December 31, 2017. Valuation Allowances: The Company has assessed whether its U.S. state and local income tax valuation allowance analysis is affected by various aspects of the Tax Act (e.g. deemed repatriation of foreign income, acceleration of cost recovery). Since, as discussed herein, the Company has recorded provisional amounts related to elements of the Tax Act, any corresponding determination of the need for a change in a valuation allowance is also provisional. For certain of our state deferred tax assets, we recorded a net $3 million provisional decrease in the recorded valuation allowance with a corresponding adjustment to deferred income tax benefit in the same amount for the year ended December 31, 2017. While we are able to make a reasonable estimate of the impact of the Tax Act on state attributes, the resolution of, or changes from, other factors noted herein may result in changes in our recorded valuation allowance. The Tax Act may impact decisions surrounding the Company’s permanent reinvestment assertions related to its foreign investments and could have an impact on the Company’s accounting for untaxed outside basis differences. We previously considered the earnings in our non-U.S. subsidiaries to be permanently reinvested, and, accordingly deferred income taxes were not provided for such basis differences. While the transition tax resulted in a reduction in these basis differences, an actual repatriation from our non-U.S. subsidiaries could still be subject to additional taxes, including, but not limited to, foreign withholding taxes and U.S. state income taxes. In light of the Tax Act, the Company is evaluating its global cash management and non-U.S. repatriation strategy but we have yet to determine whether we plan to change our prior assertion. Accordingly, we have not recorded any deferred taxes attributable to our investments in our non-U.S. subsidiaries. These estimates may change materially due to, among other things, further clarification of existing guidance that may be issued by U.S. taxing authorities or regulatory bodies and/or changes in interpretations and assumptions we have preliminarily made. We will continue to analyze the Tax Act to finalize its financial statement impact, including the mandatory deemed repatriation of foreign earnings, re-measurement of deferred taxes and all other provisions of the legislation and will record the effects of any changes to provisional amounts in the fourth quarter as required by SAB 118. Because of the complexity of the new Global Intangible Low Tax Income (GILTI) rules, we are continuing to evaluate this provision of the Act and the application of ASC 740. Under U.S. GAAP, we are allowed to make an accounting policy choice of either (1) treating taxes due on future U.S. inclusions in taxable income related to GILTI as a current-period expense when incurred (the “period cost method”) or (2) factoring such amounts into a company’s measurement of its deferred taxes (the “deferred method”). Our selection of an accounting policy related to the new GILTI tax rules will depend, in part, on analyzing our global income to determine whether we expect to have future U.S. inclusions in taxable income related to GILTI and, if so, what the impact is expected to be. Because whether we expect to have future U.S. inclusions in taxable income related to GILTI depends on a number of different aspects of our estimated future results of global operations, we are not yet able to reasonably estimate the long-term effects of this provision of the Act. Therefore, we have not recorded any potential deferred tax effects related to GILTI in our financial statements and have not made a policy decision regarding whether to record deferred taxes on GILTI or use the period cost method. We expect to complete our accounting within the prescribed measurement period.

International Paper made income tax payments, net of refunds, of $195 million and $122 million for the nine months ended September 30, 2018 and 2017, respectively.

The Company currently estimates, that as a result of ongoing discussions, pending tax settlements and expirations of statutes of limitations, the amount of unrecognized tax benefits could be reduced by approximately $2 million during the next 12 months.

International Paper uses the flow-through method to account for investment tax credits earned on eligible open loop-biomass facilities and Combined Heat and Power system expenditures. Under this method, the investment tax credits are recognized as a reduction to income tax expense in the year they are earned rather than a reduction in the asset basis. The Company recorded a tax benefit of $6 million and $29 million for the nine months ended September 30, 2018 and 2017, respectively. The 2017 amount includes $2 million which is now reported as discontinued operations.

On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the Tax Act). The Tax Act makes broad and complex changes to the U.S. tax code, including, but not limited to, (1) reducing the U.S. federal corporate tax rate from 35% to 21%; (2) requiring companies to pay a one-time deemed repatriation transition tax (the Transition Tax) on certain earnings of foreign subsidiaries; (3) generally eliminating U.S. federal income taxes on dividends from foreign subsidiaries; (4) requiring a current inclusion in U.S. federal taxable income of certain earnings of controlled foreign corporations; (5) eliminating the corporate alternative minimum tax (AMT) and changing how AMT credits can be realized; (6) capital expensing; (7) eliminating the deduction on U.S. manufacturing activities; and (8) creating new limitations on deductible interest expense and executive compensation.

The Securities Exchange Commission staff issued Staff Accounting Bulletin (SAB) 118 which provides guidance on accounting for the tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend beyond one year from the Tax Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Tax Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain income tax effects of the Tax Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of the Tax Act.

In connection with our initial analysis of the impact of the Tax Act, we recorded a provisional net tax benefit of $1.22 billion in the period ending December 31, 2017. The net tax benefit primarily consisted of a net tax benefit for the re-measurement of U.S. deferred taxes of $1.454 billion and an expense for the Transition Tax of $231 million. For various reasons that are discussed more fully below, as of the quarter ended September 30, 2018, we have not completed our accounting for the income tax effects of the Tax Act. However, in the third quarter, we have updated certain estimates and recorded a beneficial adjustment of $36 million to our provisional estimate.

The provisional estimates and related adjustments relate to the following:

Reduction of U.S. federal corporate tax rate: The Tax Act reduced the corporate tax rate to 21%, effective January 1, 2018. For certain of our deferred tax assets and liabilities, we recorded a provisional net decrease of $1.451 billion with a corresponding adjustment to deferred income tax benefit in the same amount for the year ended December 31, 2017. After the completion of the federal income tax return during the reporting period, we recognized a beneficial adjustment of $11 million from the remeasurement of certain temporary differences. The effect of the measurement-period adjustment on the 2018 third quarter effective tax rate was approximately 2.0%. A total decrease to the deferred tax liabilities to date of $1.462 billion has been recorded with a corresponding adjustment of $1.462 billion to income tax benefit. However, our accounting for these items is not yet complete because the state tax effect of adjustments made to federal temporary differences is not yet finalized. We will complete our accounting in the fourth quarter.

Deemed Repatriation Transition Tax: This is a tax on previously untaxed accumulated and current earnings and profits (“E&P”) of foreign subsidiaries. To determine the amount of the transition tax, we must determine, in addition to other factors, the amount of post-1986 E&P of the relevant subsidiaries, as well as the amount of non-U.S. income taxes paid on such earnings. We were able to make a reasonable estimate of the Transition Tax and recorded a provisional Transition Tax obligation of $231 million in the tax period ending December 31, 2017. On the basis of revised E&P computations that were calculated during the reporting period, as well as the impacts of guidance received from the IRS pertaining to the Transition Tax computation, we recognized an income tax benefit adjustment of $25 million related to the Transition Tax obligation. The effect of the measurement-period adjustment on the 2018 third quarter effective tax rate was approximately 4.5%. A total Transition Tax obligation to date of $206 million has been recorded as of September 30, 2018. Due to the fiscal year end of several significant foreign subsidiaries, we are continuing to gather additional information necessary to complete the calculation of the Transition Tax, and our accounting for this item is not yet complete. We will complete our accounting in the fourth quarter.

Our accounting for the following elements of the Tax Act is incomplete as of September 30, 2018. The estimates reported in the period ending December 31, 2017, were not adjusted in the period ending September 30, 2018. As of September 30, 2018, there has been no change in previous estimates made and reported in the period ending December 31, 2017.

Valuation Allowances: The Company has assessed whether its U.S. state and local income tax valuation allowance analysis is affected by various aspects of the Tax Act (e.g. deemed repatriation of foreign income, acceleration of cost recovery). Since, as discussed herein, the Company has recorded provisional amounts related to elements of the Tax Act, any corresponding determination of the need for a change in a valuation allowance is also provisional. For certain of our state deferred tax assets, we recorded a net $3 million provisional decrease in the recorded valuation allowance with a corresponding adjustment to deferred income tax benefit in the same amount for the year ended December 31, 2017. While we are able to make a reasonable estimate of the impact of the Tax Act on state attributes, the resolution of, or changes from, other factors noted herein may result in changes in our recorded valuation allowance.

The Tax Act may impact decisions surrounding the Company’s permanent reinvestment assertions related to its foreign investments and could have an impact on the Company’s accounting for untaxed outside basis differences. We previously considered the earnings in our non-U.S. subsidiaries to be permanently reinvested, and, accordingly deferred income taxes were not provided for such basis differences. While the transition tax resulted in a reduction in these basis differences, an actual repatriation from our non-U.S. subsidiaries could still be subject to additional taxes, including, but not limited to, foreign withholding taxes and U.S. state income taxes. In light of the Tax Act, the Company is evaluating its global cash management and non-U.S. repatriation strategy but we have yet to determine whether we plan to change our prior assertion. Accordingly, we have not recorded any deferred taxes attributable to our investments in our non-U.S. subsidiaries.

These estimates may change materially due to, among other things, further clarification of existing guidance that may be issued by U.S. taxing authorities or regulatory bodies and/or changes in interpretations and assumptions we have preliminarily made. We will continue to analyze the Tax Act to finalize its financial statement impact, including the mandatory deemed repatriation of foreign earnings, re-measurement of deferred taxes and all other provisions of the legislation and will record the effects of any changes to provisional amounts in the fourth quarter as required by SAB 118.

Because of the complexity of the new Global Intangible Low Tax Income (GILTI) rules, we are continuing to evaluate this provision of the Act and the application of ASC 740. Under U.S. GAAP, we are allowed to make an accounting policy choice of either (1) treating taxes due on future U.S. inclusions in taxable income related to GILTI as a current-period expense when incurred (the “period cost method”) or (2) factoring such amounts into a company’s measurement of its deferred taxes (the “deferred method”). Our selection of an accounting policy related to the new GILTI tax rules will depend, in part, on analyzing our global income to determine whether we expect to have future U.S. inclusions in taxable income related to GILTI and, if so, what the impact is expected to be. Because whether we expect to have future U.S. inclusions in taxable income related to GILTI depends on a number of different aspects of our estimated future results of global operations, we are not yet able to reasonably estimate the long-term effects of this provision of the Act. Therefore, we have not recorded any potential deferred tax effects related to GILTI in our financial statements and have not made a policy decision regarding whether to record deferred taxes on GILTI or use the period cost method. We expect to complete our accounting within the prescribed measurement period.