v3.26.1
MARKETABLE SECURITIES (Tables)
 3 Months Ended
Mar. 31, 2026
Investments, Debt and Equity Securities [Abstract]  
Summary of Marketable Securities
A summary of marketable securities, all of which were classified as current, was as follows:
 March 31,
2026		December 31,
2025
In millionsCost
Gross unrealized gains/(losses) (1)
Estimated
fair value		Cost
Gross unrealized gains/(losses) (1)
Estimated
fair value
Equity securities      
Level 1
Publicly-traded shares$7 $(7)$— $7 $(7)$— 
Level 2
Debt mutual funds264 10 274 416 10 426 
Certificates of deposit251 — 251 280 — 280 
Equity mutual funds14 10 24 13 11 24 
Debt securities19 — 19 34 — 34 
Marketable securities$555 $13 $568 $750 $14 $764 
(1) Unrealized gains and losses for debt securities are recorded in other comprehensive income while unrealized gains and losses for equity securities are recorded in our Condensed Consolidated Statements of Net Income.
Schedule of Proceeds from Sales and Maturities
The proceeds from sales and maturities of marketable securities were as follows:
Three months ended
March 31,
In millions20262025
Proceeds from sales of marketable securities$368 $420 
Proceeds from maturities of marketable securities39 12 
Investments in marketable securities - liquidations$407 $432