FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2025

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

Fair values of financial instruments on the unaudited condensed consolidated balance sheets:

	March 31, 2025
(in millions)	Level 1		Level 2		Level 3		Total
Assets
Marketable securities
U.S. government and agency securities	$	311	$	—	$	—	$	311
Equity mutual funds	7		—		—		7
Asset-backed securities	—		170		3		173
Mortgage-backed securities	—		174		—		174
Corporate notes and bonds	—		737		—		737
Municipal securities and other	—		18		—		18
Total Marketable securities	$	318	$	1,099	$	3	$	1,420

	December 31, 2024
(in millions)	Level 1		Level 2		Level 3		Total
Assets
Marketable securities
U.S. government and agency securities	$	292	$	—	$	—	$	292
Equity mutual funds	7		—		—		7
Asset-backed securities	—		127		7		134
Mortgage-backed securities	—		112		—		112
Corporate notes and bonds	—		696		2		698
Municipal securities and other	—		31		—		31
Total Marketable securities	$	299	$	966	$	9	$	1,274

Fixed-rate debt on the unaudited condensed consolidated balance sheets and the estimated fair value of long-term fixed-rate debt:

(in millions)	March 31, 2025		December 31, 2024
Fixed-rate debt	$	2,851	$	2,946
Estimated fair value	$	2,790	$	2,844

Schedule of Debt Investment Maturities

Maturities for marketable securities:

March 31, 2025 (in millions)	Cost Basis		Fair Value
Due in one year or less	$	427	$	427
Due after one year through five years	858		851
Due after five years through ten years	132		130
Due after ten years	6		6
No maturity date	5		6
Total	$	1,428	$	1,420