Amount of other increase (decrease) in additional paid in capital (APIC).

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Gross value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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EQUITY Table (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
EQUITY Table (Details) - USD ($) $ in Millions	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Balance, January 1			$ 6,541	$ 4,359
Adoption of ASC 606 revenue from contracts with customers					$ 73	$ 0
Issuance of stock for various plans, net			112	130
Repurchase of stock			(532)	(46)
Common stock dividends ($1.4250 per share in 2018 and $1.3875 per share in 2017)			(596)	(584)
Transactions of equity method investees			19	(24)
Comprehensive income (loss)	$ 554	$ 553	1,441	1,098
Ending Balance, September 30	7,058	4,933	7,058	4,933
Total International Paper Shareholders’ Equity
Balance, January 1			6,522	4,341
Adoption of ASC 606 revenue from contracts with customers						0
Issuance of stock for various plans, net			112	130
Repurchase of stock			(532)	(46)
Common stock dividends ($1.4250 per share in 2018 and $1.3875 per share in 2017)			(596)	(584)
Transactions of equity method investees			19	(24)
Comprehensive income (loss)			1,442	1,097
Ending Balance, September 30	7,040	4,914	7,040	4,914
Noncontrolling Interests
Balance, January 1			19	18
Adoption of ASC 606 revenue from contracts with customers					$ 0	$ 0
Issuance of stock for various plans, net			0	0
Repurchase of stock			0	0
Common stock dividends ($1.4250 per share in 2018 and $1.3875 per share in 2017)			0	0
Transactions of equity method investees			0	0
Comprehensive income (loss)			(1)	1
Ending Balance, September 30	$ 18	$ 19	$ 18	$ 19