Company: SOJE
Filing Date: 2025-02-20
Form Type: 10-K
Source: 0000092122-25-000018
Chunk: 1592

Company: SOUTHERN CO
Filing Date: 2025-02-20
Form: 10-K
Item: Item 8
Chunk 1592
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ed below are the amounts included in AOCI at December 31, 2024 and 2023 related to the portion of the defined benefit pension plan attributable to Southern Company, Southern Power, and Southern Company Gas that had not yet been recognized in net periodic pension cost.SouthernCompanySouthernPowerSouthern CompanyGas(in millions)Balance at December 31, 2024AOCI:Prior service cost$(1)$— $(1)Net (gain) loss53 11 (53)Total AOCI$52 $11 $(54)Balance at December 31, 2023AOCI:Prior service cost$(1)$— $(2)Net (gain) loss80 20 (43)Total AOCI$79 $20 $(45)

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    Table of Contents                                Index to Financial StatementsCOMBINED NOTES TO FINANCIAL STATEMENTS

The components of OCI related to the portion of the defined benefit pension plan attributable to Southern Company, Southern Power, and Southern Company Gas for the years ended December 31, 2024 and 2023 are presented in the following table:Southern CompanySouthernPowerSouthern CompanyGas(in millions)AOCI:Balance at December 31, 2022$24 $11 $(75)Net loss62 9 29 Reclassification adjustments:Amortization of prior service costs1 — 1 Amortization of net loss(8)— — Total reclassification adjustments(7)— 1 Total change55 9 30 Balance at December 31, 2023$79 $20 $(45)Net gain(29)(9)(11)Reclassification adjustments:Amortization of prior service costs1 — 2 Amortization of net gain1 — — Total reclassification adjustments2 — 2 Total change(27)(9)(9)Balance at December 31, 2024$52 $11 $(54)

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    Table of Contents                                Index to Financial StatementsCOMBINED NOTES TO FINANCIAL STATEMENTS

Components of net periodic pension cost for the Registrants were as follows:Southern CompanyAlabama PowerGeorgiaPowerMississippi PowerSouthern PowerSouthern Company Gas(in millions)2024Service cost$292 $68 $70 $12 $7 $28 Interest cost635 148 191 29 9 42