FINANCING - Outstanding Classes of Capital Stock Narrative (Details) shares in Millions |
12 Months Ended |
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Dec. 31, 2024
shares
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| Debt Instrument [Line Items] | |
| Stock issued employee and director stock plans (in shares) | 5.8 |
| Number of shares reserved for issuance to stock-based compensation plan (in shares) | 177.0 |
| Southern Company Common Stock | |
| Debt Instrument [Line Items] | |
| Remaining shares available for awards (in shares) | 25.0 |
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- Definition Share based compensation arrangement by share based payment award number of shares reserved for issuance pursuant to stock based compensation plan. No definition available.
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- Definition Stock issued during period shares company investment plan and employee and director stock plans. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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