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v3.22.2

Regulatory and Rate Matters - Formula Transmission Rates (Details) | 6 Months Ended
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Jun. 30, 2022
Regulated Operations [Abstract] |
Return on equity | 10.00%

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- Definition Percentage of public utility's approved return on equity. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_RegulatedOperationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration