MARKETABLE SECURITIES (Tables)

3 Months Ended

Mar. 31, 2023

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, 2023						December 31, 2022
In millions	Cost		Gross unrealized gains/(losses)(1)		Estimated fair value		Cost		Gross unrealized gains/(losses)(1)		Estimated fair value
Equity securities
Certificates of deposit	$	226	$	—	$	226	$	209	$	—	$	209
Debt mutual funds	206		(4)		202		238		(5)		233
Equity mutual funds	31		(2)		29		25		3		28
Debt securities	1		1		2		2		—		2
Marketable securities	$	464	$	(5)	$	459	$	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 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 millions	2023		2022
Proceeds from sales of marketable securities	$	276	$	195
Proceeds from maturities of marketable securities	69		59
Investments in marketable securities - liquidations	$	345	$	254