Property, Plant and Equipment, Net Threshold

No definition available.

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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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Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Amortization period for the recovery of regulatory asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

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- Details

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Utility Regulatory Assets and Liabilities and Regulatory Matters - Narrative (Details) - USD ($) $ in Millions							6 Months Ended		12 Months Ended
	Jan. 28, 2022	Nov. 09, 2021	Apr. 01, 2021	Feb. 08, 2021	Oct. 08, 2020	Jan. 28, 2020	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2021
Regulatory Assets
Net unrealized gains (losses)							$ 341	$ 185
Gas Utility
Regulatory Assets
Net unrealized gains (losses)							$ 21	$ 1	$ 35
Gas Utility \| PAPUC
Regulatory Assets
Requested rate increase	$ 83					$ 75
Approved rate increase					$ 20
Property, plant and equipment, net threshold			$ 2,875
Amortization period			10 years
Gas Utility \| PAPUC \| Beginning January 1, 2021
Regulatory Assets
Approved rate increase					10
Gas Utility \| PAPUC \| Beginning July 1, 2021
Regulatory Assets
Approved rate increase					$ 10
Electric Utility \| PAPUC
Regulatory Assets
Requested rate increase				$ 9
Electric Utility \| PAPUC \| Joint Petition
Regulatory Assets
Requested rate increase		$ 6