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EMPLOYEE BENEFIT PLANS (Tables)
 9 Months Ended
Sep. 30, 2024
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs
Net periodic benefit costs for qualified plans include the following:
Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2024202320242023
Service cost$7 $8 $21 $22 
Pension expense included in Wages and benefits7 8 21 22 
Interest cost28 27 82 81 
Expected return on assets(33)(28)(97)(85)
Recognized actuarial loss4 5 13 17 
Pension expense included in Non-operating Income (Expense)$(1)$4 $(2)$13