Recommended Rate Increase, Amount

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- Definition

Recommended Rate increase, percentage

+ References

No definition available.

+ Details

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- Definition

Regulatory Deferral - Joint Venture

+ References

No definition available.

+ Details

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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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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 405
-Section 25
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394

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Regulatory Matters (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Oct. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Apr. 06, 2022
Public Utilities, General Disclosures [Line Items]
Regulatory Deferral - Joint Venture		$ (2.2)	$ 0.0	$ (4.5)	$ 0.0
Minimum
Public Utilities, General Disclosures [Line Items]
Recommended Rate increase, percentage						4.00%
Recommended Rate Increase, Amount						$ 35.2
Maximum
Public Utilities, General Disclosures [Line Items]
Recommended Rate increase, percentage						6.30%
Recommended Rate Increase, Amount						$ 57.6
Columbia Of Ohio
Public Utilities, General Disclosures [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Percentage				21.30%
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 221.4
Columbia Of Ohio \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Percentage	7.97%
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 68.2
NIPSCO - Electric \| Overrecovered Gas and Fuel Costs
Public Utilities, General Disclosures [Line Items]
Regulatory Liabilities		$ 8.0		$ 8.0