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Pension and Other Postretirement Benefits (Tables)
9 Months Ended
Sep. 30, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Components Of Net Periodic Benefit Costs
Net periodic pension cost (benefit) included the following components:
Three Months Ended September 30
Qualified PlansNon-qualified PlansTotal
202320222023202220232022
(In millions)
Service cost$$$— $$$
Interest cost22 1422415
Expected return on plan assets(30)(35)— $(30)(35)
Amortization of actuarial loss729
Settlement charge— — 7— 
Net periodic pension (benefit) cost3(7)114$14 $(3)

Nine Months Ended September 30
Qualified PlansNon-qualified PlansTotal
202320222023202220232022
(In millions)
Service cost$17 $25 $$$18 $27 
Interest cost644269 44 
Expected return on plan assets(90)(105)— — (90)(105)
Amortization of actuarial loss172020 25 
Settlement charge— — — — 
Net periodic pension (benefit) cost8(18)169$24 $(9)