SPECIAL ITEMS (Tables)

12 Months Ended

Dec. 31, 2024

Unusual or Infrequent Items, or Both [Abstract]

Schedule of Unusual or Infrequent Items, or Both

(in millions)	2024		2023		2022
Operating Expenses
Fleet transition	$	11	$	385	$	481
Labor agreements	73		51		84
Integration costs	208		7		—
Litigation	53		—		15
Special items - operating	$	345	$	443	$	580
Non-operating Income (Expense)
Special items - net non-operating	$	16	$	(18)	$	—

(in millions)	2024		2023
Legal and professional fees	$	115	$	7
Employee-related and other merger costs	93		—
Total Integration Costs	$	208	$	7