SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION (Tables)

9 Months Ended

Sep. 30, 2025

Disclosure Text Block Supplement [Abstract]

Schedule of Accounts and Notes Receivable, Net

Accounts and Notes Receivable, Net

In millions	September 30, 2025		December 31, 2024
Trade (less allowances of $70 and $30, respectively)	$	3,570	$	2,150
Other	535		252
Total	$	4,105	$	2,402

Schedule of Inventories

Inventories

In millions	September 30, 2025		December 31, 2024
Raw materials	$	480	$	160
Finished pulp, paper and packaging	909		767
Operating supplies	653		529
Other	137		30
Total	$	2,179	$	1,486

The last-in, first-out inventory method is used to value most of International Paper's U.S. inventories. Approximately 58% of total raw materials and finished products inventories were valued using this method. The last-in, first-out inventory reserve was $306 million and $272 million at September 30, 2025 and December 31, 2024, respectively.

Schedule of Amounts Related to Interest

Amounts related to interest were as follows: 

	Three Months Ended September 30,				Nine Months Ended September 30,
In millions	2025		2024		2025		2024
Interest expense	$	135	$	107	$	413	$	324
Interest income	50		55		136		168
Capitalized interest costs	9		6		20		14