v3.26.1
MASTER TRUST (Tables) - EBP 007
 12 Months Ended
Dec. 31, 2025
EBP, Master Trust [Line Items]  
Schedule of Master Trust Net Assets
The total and net assets of the Master Trust at December 31, 2025 and 2024, are summarized as follows (in thousands):
Master Trust BalancesPlan's Interest in Master Trust BalancesMaster Trust BalancesPlan's Interest in Master Trust Balances
20252024
Master Trust net assets:
Common stock of International Paper Company$187,581 $152,139 $274,839 $222,814 
     Equities4,063,771 3,049,536 4,140,648 3,120,610 
     Fixed income1,210,182 885,146 1,017,411 750,735 
     Derivatives1,108 899 1,966 1,590 
     Cash and cash equivalents35,445 26,938 66,667 49,572 
Collateral held under securities lending17,710 13,105 28,801 21,342 
     Real Estate Funds45,953 31,717 45,691 30,638 
          Total investments at fair value5,561,750 4,159,480 5,576,023 4,197,301 
     Stable Value fund at contract value831,284 573,046 944,534 642,211 
               Total investments6,393,034 4,732,526 6,520,557 4,839,512 
Receivable for securities sold33,750 24,975 60,779 45,402 
Other receivables11,618 8,447 15,143 8,762 
Total receivables45,368 33,422 75,922 54,164 
Total Master Trust assets6,438,402 4,765,948 6,596,479 4,893,676 
Liability to return collateral held under securities lending agreements17,710 13,105 28,801 21,342 
Payable for securities purchased62,982 46,607 100,358 74,968 
Other payables12,158 10,728 18,114 16,621 
               Total liabilities92,850 70,440 147,273 112,931 
Total Master Trust net assets$6,345,552 $4,695,508 $6,449,206 $4,780,745 
Plan interest in the Master Trust as a percentage of total74.0 %74.1 %

The net investment income of the Master Trust for the year ended December 31, 2025 is summarized below (in thousands): 
2025
Master Trust investment income
Net appreciation of investments$767,473 
Interest34,601 
Dividends21,922 
Total Master Trust investment income$823,996 
Investment income — Plan interest in Master Trust$610,928 
Schedule of Securities On Loan
The securities on loan under lending agreements from the Master Trust as of December 31, 2025 and 2024, are summarized below (in thousands): 

Securities on loan20252024
     Equities$11,421 $25,128 
     Fixed Income5,770 2,878 
     Total Securities on loan$17,191 $28,006