SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impairment and Goodwill and Other Intangible Assets and Liabilities (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Sep. 30, 2024 |
Dec. 31, 2022 |
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| Goodwill [Line Items] | ||
| Goodwill impairment | $ 119 | |
| Alabama Power | ||
| Goodwill [Line Items] | ||
| Impairment charges | $ 36 | |
| Impairment charges, after tax | $ 27 | |
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- Definition Asset Impairment Charges, Net Of Tax No definition available.
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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- Details
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