BASIS OF PRESENTATION Footnote	9 Months Ended
Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation [Note Text Block]	NOTE 1 - BASIS OF PRESENTATION The accompanying unaudited condensed financial statements have been prepared in conformity with accounting principles generally accepted in the United States and in accordance with the instructions to Form 10-Q and, in the opinion of management, include all adjustments that are necessary for the fair presentation of International Paper Company’s (International Paper’s, the Company’s or our) financial position, results of operations, and cash flows for the interim periods presented. Except as disclosed herein, such adjustments are of a normal, recurring nature. Results for the first nine months of the year may not necessarily be indicative of full year results. It is suggested that these condensed financial statements be read in conjunction with the audited financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 and the Company's Current Report on Form 8-K dated July 31, 2017 (collectively the "2016 10-K"), both of which have previously been filed with the Securities and Exchange Commission. The Current Report on Form 8-K dated July 31, 2017 was filed to retrospectively adjust portions of the Company's Annual Report on Form 10-K for the year ended December 31, 2016, to reflect the adoption of the required guidance in ASU 2015-17, "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes." In addition, as a result of an internal reorganization in the 2017 first quarter, the net sales and operating profits for the Asian Distribution operations are included in the results of the businesses that manufacture the products, and as such, prior year amounts have been reclassified to conform with the presentation in 2017. During the fourth quarter of 2016, the Company completed the acquisition of Weyerhaeuser's pulp business (see Note 7). Subsequent to the acquisition, the Company began reporting Global Cellulose Fibers as a separate reportable business segment in the fourth quarter of 2016 due to the increased materiality of the results of this business. This segment includes the Company's legacy pulp business and the newly acquired pulp business. As such, amounts related to the legacy pulp business have been reclassified out of the Printing Papers' segment and included in the new Global Cellulose Fibers business segment for all prior periods to conform with current year presentation.

NOTE 1 - BASIS OF PRESENTATION

The accompanying unaudited condensed financial statements have been prepared in conformity with accounting principles generally accepted in the United States and in accordance with the instructions to Form 10-Q and, in the opinion of management, include all adjustments that are necessary for the fair presentation of International Paper Company’s (International Paper’s, the Company’s or our) financial position, results of operations, and cash flows for the interim periods presented. Except as disclosed herein, such adjustments are of a normal, recurring nature. Results for the first nine months of the year may not necessarily be indicative of full year results. It is suggested that these condensed financial statements be read in conjunction with the audited financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 and the Company's Current Report on Form 8-K dated July 31, 2017 (collectively the "2016 10-K"), both of which have previously been filed with the Securities and Exchange Commission. The Current Report on Form 8-K dated July 31, 2017 was filed to retrospectively adjust portions of the Company's Annual Report on Form 10-K for the year ended December 31, 2016, to reflect the adoption of the required guidance in ASU 2015-17, "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes." In addition, as a result of an internal reorganization in the 2017 first quarter, the net sales and operating profits for the Asian Distribution operations are included in the results of the businesses that manufacture the products, and as such, prior year amounts have been reclassified to conform with the presentation in 2017.

During the fourth quarter of 2016, the Company completed the acquisition of Weyerhaeuser's pulp business (see Note 7). Subsequent to the acquisition, the Company began reporting Global Cellulose Fibers as a separate reportable business segment in the fourth quarter of 2016 due to the increased materiality of the results of this business. This segment includes the Company's legacy pulp business and the newly acquired pulp business. As such, amounts related to the legacy pulp business have been reclassified out of the Printing Papers' segment and included in the new Global Cellulose Fibers business segment for all prior periods to conform with current year presentation.