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PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)
9 Months Ended
Sep. 30, 2022
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)
(In Millions)
Three Months Ended
September 30,
Nine Months Ended
September 30,
2022202120222021
Service cost$11 $14 $35 $42 
Interest cost32 26 95 78 
Expected return on plan assets(93)(89)(277)(269)
Amortization:
Prior service costs1 1 
Net actuarial loss4 11 24 
Net periodic benefit credits$(45)$(40)$(135)$(124)
OPEB Costs (Credits)
(In Millions)
Three Months Ended
September 30,
Nine Months Ended
September 30,
2022202120222021
Service cost$11 $13 $32 $38 
Interest cost19 19 59 56 
Expected return on plan assets(10)(10)(29)(30)
Amortization:
Prior service costs (credits)1 (2)1 (2)
Net actuarial loss (gain)(3)(9)
Net periodic benefit costs$18 $21 $54 $65