Company: SOJE
Filing Date: 2025-10-30
Form Type: 10-Q
Source: 0000092122-25-000084
Chunk: 259

Company: SOUTHERN CO
Filing Date: 2025-10-30
Form: 10-Q
Item: Item 8
Chunk 259
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irement BenefitsService cost$10 $3 $3 $— $— $1 Interest cost52 13 19 2 — 6 Expected return on plan assets(68)(26)(25)(1)— (7)Amortization:Prior service costs2 — 1 — — — Regulatory asset— — — — — 5 Net gain(11)(2)(2)— — (6)Net periodic postretirement benefit cost (income)$(15)$(12)$(4)$1 $— $(1)

71

    Table of Contents                                Index to Financial StatementsNOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)(UNAUDITED)

SouthernCompanyAlabamaPowerGeorgiaPowerMississippiPowerSouthern PowerSouthern Company Gas(in millions)Three Months Ended September 30, 2024Pension PlansService cost$73 $17 $18 $3 $2 $7 Interest cost159 37 47 7 2 11 Expected return on plan assets(316)(77)(99)(14)(4)(21)Amortization:Prior service costs— — — — — (1)Regulatory asset— — — — — 4 Net (gain) loss14 4 6 — (1)— Net periodic pension income$(70)$(19)$(28)$(4)$(1)$— Postretirement BenefitsService cost$4 $1 $1 $— $— $— Interest cost16 4 6 1 — 2 Expected return on plan assets(22)(9)(8)(1)— (2)Amortization:Prior service costs1 — 1 — — — Regulatory asset— — — — — 2 Net (gain) loss(4)— (3)1 — (1)Net periodic postretirement benefit cost (income)$(5)$(4)$(3)$1 $— $1 Nine Months Ended September 30, 2024Pension PlansService cost$219 $51 $53 $9 $5 $21 Interest cost476 111 143 21 6 32 Expected return on plan assets(947