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Fair Value Measurements - Schedule of Financial Instruments for which Carrying Amount did not Equal Fair Value (Details) $ in Billions | Jun. 30, 2023 USD ($)
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Long-term debt, including securities due within one year: |
Carrying amount | $ 58.9
Fair value | 53.5
ALABAMA POWER CO |
Long-term debt, including securities due within one year: |
Carrying amount | 10.8
Fair value | 9.5
GEORGIA POWER CO |
Long-term debt, including securities due within one year: |
Carrying amount | 16.5
Fair value | 15.0
MISSISSIPPI POWER CO |
Long-term debt, including securities due within one year: |
Carrying amount | 1.6
Fair value | 1.4
SOUTHERN POWER CO |
Long-term debt, including securities due within one year: |
Carrying amount | 3.0
Fair value | 2.8
SOUTHERN Co GAS |
Long-term debt, including securities due within one year: |
Carrying amount | 7.5
Fair value | $ 6.6

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- Details
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- Details
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