Public Utilities, Requested Cost To Complete Environmental Compliance Projects

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 10.C)
-URI http://asc.fasb.org/extlink&oid=122136288&loc=d3e659983-123033

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- Definition

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

+ References

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.

+ References

No definition available.

+ Details

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REGULATORY MATTERS - MPC Environmental Compliance Overview Plan (Details) - USD ($) $ in Millions				1 Months Ended
	Dec. 07, 2021	Jun. 08, 2021	Apr. 06, 2021	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2019
Mississippi Power
Public Utilities, General Disclosures [Line Items]
Public utilities, approved rate increase (decrease), amount	$ 9.0	$ 16.0	$ 28.0	$ (16.7)
Mississippi Power \| Environmental Compliance Overview Plan
Public Utilities, General Disclosures [Line Items]
Percent ownership						50.00%
Public utilities, requested cost to complete environmental compliance projects						$ 67.0
Public utilities, approved rate increase (decrease), amount		$ (9.0)
Mississippi Power \| Environmental Compliance Overview Plan \| Property, Plant and Equipment
Public Utilities, General Disclosures [Line Items]
Public utilities, requested cost to complete environmental compliance projects					$ 20.0
Mississippi Power \| Environmental Compliance Overview Plan \| Construction in Progress
Public Utilities, General Disclosures [Line Items]
Public utilities, requested cost to complete environmental compliance projects					14.0
Mississippi Power And Gulf Power \| Environmental Compliance Overview Plan
Public Utilities, General Disclosures [Line Items]
Public utilities, requested cost to complete environmental compliance projects						$ 125.0
Ash Pond \| Mississippi Power \| Environmental Compliance Overview Plan
Public Utilities, General Disclosures [Line Items]
Public utilities, requested cost to complete environmental compliance projects					$ 13.0