Document and Entity Information Document
Jul. 30, 2020
Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Jul. 30, 2020
Entity Registrant Name International Paper Company
Entity Central Index Key 0000051434
Amendment Flag false
Entity Incorporation, State or Country Code NY
Entity File Number 1-3157
Entity Tax Identification Number 13-0872805
Entity Address, Address Line One 6400 Poplar Avenue
Entity Address, City or Town Memphis
Entity Address, State or Province TN
Entity Address, Postal Zip Code 38197
City Area Code 901
Local Phone Number 419-9000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
NEW YORK STOCK EXCHANGE, INC. [Member]  
Entity Information [Line Items]  
Title of 12(b) Security Common Stock, $1 per share par value
Trading Symbol IP
Security Exchange Name NYSE