EQUITY Phantom (Details) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Equity [Line Items]
Common stock dividends, per share	$ 0.4750	$ 0.4625
Total International Paper Shareholders’ Equity
Equity [Line Items]
Common stock dividends, per share	0.4750	0.4625
Noncontrolling Interests
Equity [Line Items]
Common stock dividends, per share	$ 0.4750	$ 0.4625