Summary of Significant Accounting Policies (Revenue) (Details) - 2022 Formula Rate $ in Millions	1 Months Ended
Nov. 30, 2021 USD ($)
Public Utilities, General Disclosures [Line Items]
Requested increase (decrease) revenue requirement	$ 326
Requested increase (decrease) revenue requirement (as a percent)	30.00%

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.

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration