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FERC (Details 4) $ in Millions	Jan. 01, 2023 USD ($)
Electric | FERC [Member] | Montana-Dakota Utilities Co. [Member] | Subsequent Event [Member]
Public Utilities, General Disclosures [Line Items]
Transmission Formula Revenue Requirement	$ 15.4

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- Definition

Transmission Formula Revenue Requirement

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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.

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No definition available.

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