v3.26.1
PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)
6 Months Ended
Jun. 30, 2026
Postemployment Benefits [Abstract]  
Schedule of Net Benefit Costs
The following are the components of defined benefit pension and OPEB costs (credits):
DEFINED BENEFIT PENSION COSTS (CREDITS)
Three Months Ended
June 30,
Six Months Ended
June 30,
(In millions)2026202520262025
Service cost$7 $$14 $14 
Interest cost45 52 90 105 
Expected return on plan assets(82)(80)(163)(159)
Amortization:
Prior service costs5 9 
Net actuarial gain(5)(2)(9)(4)
Net periodic benefit credits$(30)$(18)$(59)$(35)
OPEB COSTS (CREDITS)
Three Months Ended
June 30,
Six Months Ended
June 30,
(In millions)2026202520262025
Service cost$1 $$3 $
Interest cost15 15 29 29 
Expected return on plan assets(11)(10)(22)(21)
Termination benefits1
 15  15 
Amortization:
Prior service credits(3)(4)(6)(7)
Net actuarial gain(28)(34)(56)(67)
Net periodic benefit credits$(26)$(16)$(52)$(47)