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Regulatory Matters - MISO Return on Equity Complaints (Details) - FERC [Member]	Jun. 30, 2016	Jan. 06, 2015
Return on Equity Complaint 1 [Member]
Loss Contingencies [Line Items]
Requested Return on Equity Filed with the FERC by Third Party	9.15%
Proposed Return on Equity by Federal Administrative Law Judge	10.32%
Return on Equity Complaint 2 [Member]
Loss Contingencies [Line Items]
Requested Return on Equity Filed with the FERC by Third Party	8.67%
Proposed Return on Equity by Federal Administrative Law Judge	9.70%
Incentive Adder [Member]
Loss Contingencies [Line Items]
FERC Approved Incentive Adder for Participation in Regional Transmission Organization		50

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- Definition

Incentive Adder for Participation in Regional Transmission Organization

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- Definition

The proposed return on common equity by regulatory organization

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- Definition

The requested return on common equity, which would be dedicated to the utilities within the regulatory organizations jurisdiction.

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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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