Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income	$ 1,504	$ 1,754	$ 482
Net gains (losses) arising during the period (less tax of $0, $1 and $(15))	0	3	(34)
Reclassification adjustment for (gains) losses included in net earnings (less tax of $1, $(2) and $13)	2	(9)	26
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Change in cumulative foreign currency translation adjustment (less tax of $0, $0 and $1)	(28)	69	8
Net gains/losses on cash flow hedging derivatives:
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(259)	901	397
Comprehensive income (loss)	1,245	2,655	879
Net (Earnings) Loss Attributable to Noncontrolling Interests	0	(2)	0
Other Comprehensive (Income) Loss Attributable to Noncontrolling Interests	0	2	0
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO INTERNATIONAL PAPER COMPANY	1,245	2,655	879
U.S. Plans
Amortization of pension and postretirement prior service costs and net loss:	85	124	170
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Pension and postretirement liability adjustments:	(327)	706	229
Non-U.S. Plans
Amortization of pension and postretirement prior service costs and net loss:	1	1	0
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Pension and postretirement liability adjustments:	$ 8	$ 7	$ (2)