FERC (Details 8) $ in Millions	Sep. 04, 2018 USD ($)
Electric transmission rate proceeding [Member] \| MISO [Member]
Public Utilities, General Disclosures [Line Items]
Public Utilities, Tariff on Capital Project Tracker	$ 12.5

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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