Public Utilities, Approved Rate Increase (Decrease), Minimum Annual Accrual, Amount

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- Definition

Public Utilities, Required Fossil-stream Generation Retirements

+ References

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- Definition

The proportionate share of interest (percent) in a jointly owned utility plant.

+ References

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-SubTopic 360
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 10.C)
-Publisher FASB
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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- Definition

The net amount of all regulatory assets less all regulatory liabilities as of the end of the period.

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-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481878/980-340-50-1

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- Definition

Amount of public utility's approved rate increase (decrease) by regulatory agency.

+ References

No definition available.

+ Details

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- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency.

+ References

No definition available.

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Regulatory Matters - MPC (Details) $ in Millions	Apr. 22, 2024 USD ($)	Apr. 11, 2024 USD ($)	Mar. 29, 2024 USD ($)	Apr. 26, 2024 MW	Mar. 31, 2024 USD ($)
Subsequent Event
Loss Contingencies [Line Items]
Minimum annual accrual, amount		$ 12
MISSISSIPPI POWER CO \| Plant Daniel Units 1 and 2
Loss Contingencies [Line Items]
Remaining net book value					$ 485
MISSISSIPPI POWER CO \| Subsequent Event
Loss Contingencies [Line Items]
Approved rate increase (decrease)		$ 13
MISSISSIPPI POWER CO \| Subsequent Event \| Plant Watson Unit 4
Loss Contingencies [Line Items]
Required fossil-stream generation retirements (in MWs) \| MW				268
MISSISSIPPI POWER CO \| Subsequent Event \| Plant Greene County Units 1 and 2
Loss Contingencies [Line Items]
Required fossil-stream generation retirements (in MWs) \| MW				206
Proportionate ownership share				40.00%
MISSISSIPPI POWER CO \| Subsequent Event \| Plant Daniel Units 1 and 2
Loss Contingencies [Line Items]
Required fossil-stream generation retirements (in MWs) \| MW				502
Proportionate ownership share				50.00%
MISSISSIPPI POWER CO \| Ad Valorem Tax Adjustment \| Subsequent Event
Loss Contingencies [Line Items]
Requested rate increase (decrease) amount	$ (5)
MISSISSIPPI POWER CO \| Municipal And Rural Associations Tariff
Loss Contingencies [Line Items]
Requested rate increase (decrease) amount			$ 8