| Segment / region | Type | Fiscal year | Currency | Revenue (millions) | Share of revenue |
|---|---|---|---|---|---|
| Southern Company Gas | Product | 2025 | USD | 5,044.0 | 50.0% |
| Gas Distribution Operations | Product | 2025 | USD | 4,428.0 | 43.9% |
| Gas Marketing Services | Product | 2025 | USD | 582.0 | 5.8% |
| Gas Pipeline Investments | Product | 2025 | USD | 32.0 | 0.3% |
| Southern Company Gas | Product | 2024 | USD | 4,456.0 | 50.1% |
| Gas Distribution Operations | Product | 2024 | USD | 3,899.0 | 43.8% |
| Gas Marketing Services | Product | 2024 | USD | 516.0 | 5.8% |
| Gas Pipeline Investments | Product | 2024 | USD | 32.0 | 0.4% |
| Electric Utilities | Product | 2022 | USD | 22,873.0 | 59.9% |
| Southern Company Gas | Product | 2022 | USD | 5,962.0 | 15.6% |
| Gas Distribution Operations | Product | 2022 | USD | 5,267.0 | 13.8% |
| Southern Power | Product | 2022 | USD | 3,369.0 | 8.8% |
| Gas Marketing Services | Product | 2022 | USD | 638.0 | 1.7% |
| Corporate and Other | Product | 2022 | USD | 55.0 | 0.1% |
| Gas Pipeline Investments | Product | 2022 | USD | 32.0 | 0.1% |
| Natural Gas Distribution | Product | 2021 | USD | 3,625.0 | 20.3% |
| Other Natural Gas | Product | 2021 | USD | 2,668.0 | 15.0% |
| Other Natural Gas - Wholesale Gas Services | Product | 2021 | USD | 2,168.0 | 12.2% |
| Electric Utilities | Product | 2021 | USD | 1,851.0 | 10.4% |
| Natural Gas Distribution - Residential | Product | 2021 | USD | 1,799.0 | 10.1% |
| Other Revenue Sources | Product | 2021 | USD | 1,786.0 | 10.0% |
| Natural Gas Distribution - Transportation | Product | 2021 | USD | 1,038.0 | 5.8% |
| Wholesale Electric - PPA Energy Revenues | Product | 2021 | USD | 854.0 | 4.8% |
| Natural Gas Distribution - Commercial | Product | 2021 | USD | 470.0 | 2.6% |
| Other Natural Gas - Gas Marketing Services | Product | 2021 | USD | 464.0 | 2.6% |
| Wholesale Electric - Non-PPA Revenues | Product | 2021 | USD | 398.0 | 2.2% |
| Wholesale Electric - PPA Capacity Revenues | Product | 2021 | USD | 323.0 | 1.8% |
| Natural Gas Distribution - Other | Product | 2021 | USD | 269.0 | 1.5% |
| Natural Gas Distribution - Industrial | Product | 2021 | USD | 49.0 | 0.3% |
| Other Natural Gas - Other Natural Gas Revenues | Product | 2021 | USD | 36.0 | 0.2% |
| Other Revenues | Product | 2021 | USD | 30.0 | 0.2% |
| Retail Electric - Other | Product | 2021 | USD | 0.0 | 0.0% |
| Retail Electric - Residential | Product | 2021 | USD | 0.0 | 0.0% |
| Other Adjustments | Product | 2021 | USD | 0.0 | 0.0% |
| Retail Electric | Product | 2021 | USD | 0.0 | 0.0% |
| Retail Electric - Commercial | Product | 2021 | USD | 0.0 | 0.0% |
| Retail Electric - Industrial | Product | 2021 | USD | 0.0 | 0.0% |
| Natural Gas Distribution | Product | 2020 | USD | 2,888.0 | 18.7% |
| Other Revenue Sources | Product | 2020 | USD | 2,881.0 | 18.6% |
| Other Natural Gas | Product | 2020 | USD | 2,151.0 | 13.9% |
| Other Natural Gas - Wholesale Gas Services | Product | 2020 | USD | 1,727.0 | 11.2% |
| Electric Utilities | Product | 2020 | USD | 1,399.0 | 9.0% |
| Natural Gas Distribution - Residential | Product | 2020 | USD | 1,338.0 | 8.7% |
| Natural Gas Distribution - Transportation | Product | 2020 | USD | 971.0 | 6.3% |
| Wholesale Electric - PPA Energy Revenues | Product | 2020 | USD | 570.0 | 3.7% |
| Other Natural Gas - Gas Marketing Services | Product | 2020 | USD | 391.0 | 2.5% |
| Natural Gas Distribution - Commercial | Product | 2020 | USD | 340.0 | 2.2% |
| Wholesale Electric - PPA Capacity Revenues | Product | 2020 | USD | 296.0 | 1.9% |
| Wholesale Electric - Non-PPA Revenues | Product | 2020 | USD | 239.0 | 1.5% |
| Natural Gas Distribution - Other | Product | 2020 | USD | 209.0 | 1.4% |
| Other Natural Gas - Other Natural Gas Revenues | Product | 2020 | USD | 33.0 | 0.2% |
| Natural Gas Distribution - Industrial | Product | 2020 | USD | 30.0 | 0.2% |
| Other Revenues | Product | 2020 | USD | 14.0 | 0.1% |
| Retail Electric | Product | 2020 | USD | 0.0 | 0.0% |
| Retail Electric - Commercial | Product | 2020 | USD | 0.0 | 0.0% |
| Retail Electric - Residential | Product | 2020 | USD | 0.0 | 0.0% |
| Other Adjustments | Product | 2020 | USD | 0.0 | 0.0% |
| Retail Electric - Other | Product | 2020 | USD | 0.0 | 0.0% |
| Retail Electric - Industrial | Product | 2020 | USD | 0.0 | 0.0% |
| Natural Gas Distribution | Product | 2019 | USD | 2,989.0 | 42.5% |
| Other Natural Gas | Product | 2019 | USD | 2,609.0 | 37.1% |
| Other Natural Gas - Wholesale Gas Services | Product | 2019 | USD | 2,095.0 | 29.8% |
| Natural Gas Distribution - Residential | Product | 2019 | USD | 1,413.0 | 20.1% |
| Natural Gas Distribution - Transportation | Product | 2019 | USD | 907.0 | 12.9% |
| Retail | Product | 2019 | USD | 877.0 | 12.5% |
| Other Natural Gas - Gas Marketing Services | Product | 2019 | USD | 440.0 | 6.3% |
| Wholesale, Affiliates | Product | 2019 | USD | 398.0 | 5.7% |
| Natural Gas Distribution - Commercial | Product | 2019 | USD | 389.0 | 5.5% |
| Natural Gas Distribution - Other | Product | 2019 | USD | 245.0 | 3.5% |
| Other Natural Gas - Other Natural Gas Revenues | Product | 2019 | USD | 42.0 | 0.6% |
| Natural Gas Distribution - Industrial | Product | 2019 | USD | 35.0 | 0.5% |
| Other Natural Gas - Gas Pipeline Investments | Product | 2019 | USD | 32.0 | 0.5% |
| Alternative Energy | Product | 2019 | USD | (1.0) | −0.0% |
| Other Adjustments | Product | 2019 | USD | (5,443.0) | −77.5% |
Product and geographic breakdowns describe the same revenue from different perspectives and should not be added together.
