0000092122 2026-07-30 2026-07-30 0000092122 so:AlabamaPowerMember 2026-07-30 2026-07-30 0000092122 so:GeorgiaPowerMember 2026-07-30 2026-07-30 0000092122 so:MississippiPowerMember 2026-07-30 2026-07-30 0000092122 so:SouthernPowerMember 2026-07-30 2026-07-30 0000092122 so:SouthernCompanyGasMember 2026-07-30 2026-07-30 0000092122 us-gaap:CommonStockMember 2026-07-30 2026-07-30 0000092122 so:Series2017B5.25JuniorSubordinatedNotesDue2077Member 2026-07-30 2026-07-30 0000092122 so:Series2020A4.95JuniorSubordinatedNotesDue2080Member 2026-07-30 2026-07-30 0000092122 so:Series2020C420JuniorSubordinatedNotesDue2060Member 2026-07-30 2026-07-30 0000092122 so:Series2021B1875FixedToFixedResetRateJuniorSubordinatedNotesDue2081Member 2026-07-30 2026-07-30 0000092122 so:Series2025A6.50JuniorSubordinatedNotesDue2085Member 2026-07-30 2026-07-30 0000092122 so:A2025SeriesACorporateUnitsMember 2026-07-30 2026-07-30 0000092122 so:Series2017A500JuniorSubordinatedNotesDue2077Member so:GeorgiaPowerMember 2026-07-30 2026-07-30 0000092122 so:Series2016B1.850SeniorNotesDue2026Member so:SouthernPowerMember 2026-07-30 2026-07-30 0000092122 0000003153 0000041091 0000066904 0001160661 0001004155 false 8-K 2026-07-30 1-3526 The Southern Company 58-0690070 DE 30 Ivan Allen Jr. Boulevard, N.W Atlanta GA 30308 404 506-5000 1-3164 Alabama Power Company 63-0004250 AL 600 North 18th Street Birmingham AL 35203 205 257-1000 1-6468 Georgia Power Company 58-0257110 GA 241 Ralph McGill Boulevard, N.E. Atlanta GA 30308 404 506-6526 001-11229 Mississippi Power Company 64-0205820 MS 2992 West Beach Boulevard Gulfport MS 39501 228 864-1211 001-37803 Southern Power Company 58-2598670 DE 30 Ivan Allen Jr. Boulevard, N.W. Atlanta GA 30308 404 506-5000 1-14174 Southern Company Gas 58-2210952 GA 725 W. Peachtree Street, N.E. Atlanta GA 30308 404 584-4000 false false false false Common Stock, par value $0.01 per share SO NYSE Series 2017B 5.25% Junior Subordinated Notes due 2077 SOJC NYSE Series 2020A 4.95% Junior Subordinated Notes due 2080 SOJD NYSE Series 2020C 4.20% Junior Subordinated Notes due 2060 SOJE NYSE Series 2021B 1.875% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due 2081 SO 81 NYSE Series 2025A 6.50% Junior Subordinated Notes due 2085 SOJF NYSE 2025 Series A Corporate Units SOMN NYSE Series 2017A 5.00% Junior Subordinated Notes due 2077 GPJA NYSE Series 2016B 1.850% Senior Notes due 2026 SO/26A NYSE false false false false false false