Annual report pursuant to Section 13 and 15(d)

MARKETABLE SECURITIES (Tables)

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MARKETABLE SECURITIES (Tables)
12 Months Ended
Dec. 31, 2023
Marketable Securities [Abstract]  
Summary of marketable securities
A summary of marketable securities, all of which are classified as current, was as follows:
December 31,
  2023 2022
In millions Cost
Gross unrealized gains/(losses) (1)
Estimated
fair value
Cost
Gross unrealized gains/(losses) (1)
Estimated
fair value
Equity securities            
Debt mutual funds $ 272  $   $ 272  $ 238  $ (5) $ 233 
Certificates of deposit 246    246  209  —  209 
Equity mutual funds 22  6  28  25  28 
Debt securities 16    16  — 
Marketable securities $ 556  $ 6  $ 562  $ 474  $ (2) $ 472 
(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 Consolidated Statements of Net Income.
Schedule of proceeds from sales and maturities of marketable securities
The proceeds from sales and maturities of marketable securities were as follows:
Years ended December 31,
In millions 2023 2022 2021
Proceeds from sales of marketable securities $ 1,075  $ 750  $ 494 
Proceeds from maturities of marketable securities 259  401  179 
Investments in marketable securities - liquidations $ 1,334  $ 1,151  $ 673