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EMPLOYEE BENEFIT PLANS (Tables)
9 Months Ended
Sep. 30, 2025
Retirement Benefits [Abstract]  
Schedule of Net Periodic Cost
Employee benefit plans net periodic cost
Pension BenefitsOther Postretirement and Postemployment Benefits
(in millions)2025202420252024
Three Months Ended September 30,
Service cost(1)
$95 $88 $33 $23 
Interest cost208 201 45 45 
Expected return on plan assets(267)(263)— (1)
Amortization of prior service credit— — (1)(1)
Recognized net actuarial loss51 62 
Net periodic cost$87 $88 $82 $71 
Nine Months Ended September 30,
Service cost(1)
$125 $116 $99 $69 
Interest cost623 603 135 136 
Expected return on plan assets(800)(789)(1)(2)
Amortization of prior service credit— — (3)(3)
Recognized net actuarial loss151 186 15 14 
Net periodic cost$99 $116 $245 $214 
(1)Service cost relates to the market based cash balance plan. There is no service cost associated with traditional frozen defined benefit plans.