Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net income (loss)	$ 434	$ 266	$ 783	$ 125
Change in cumulative foreign currency translation adjustment	312	57	169	(487)
Net gains (losses) arising during the period	13	0	7	(30)
Reclassification adjustment for (gains) losses included in net earnings (loss)	(4)	9	(1)	20
Total Other Comprehensive Income (Loss), Net of Tax	358	105	246	(412)
Comprehensive Income (Loss)	792	371	1,029	(287)
Less: Net earnings (loss) attributable to noncontrolling interests	(2)	0	(2)	0
Other comprehensive (income) loss attributable to noncontrolling interests	1	1	2	2
Comprehensive Income (Loss) Attributable to International Paper Company	791	372	1,029	(285)
U.S. plans
Amortization of pension and post-retirement prior service costs and net loss:	36	39	70	85
Foreign Plan
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	$ 1	$ 0	$ 1	$ 0