Loss Contingency, Estimated Recovery Challenged, Amount

No definition available.

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- Definition

Public Utilities, Interim Rate Increase (Decrease), Amount Self-Implemented Base Rate Increase

+ References

No definition available.

+ Details

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- Definition

The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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- Definition

Amount of public utility's approved rate increase (decrease) by regulatory agency.

+ References

No definition available.

+ Details

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- Definition

Percentage of public utility's approved return on equity.

+ References

No definition available.

+ Details

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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.

+ References

No definition available.

+ Details

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- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Percentage of public utility's requested return on equity.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 405
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394

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Regulatory Matters (Details Textuals) - DTE Electric - MPSC - USD ($) $ in Millions	Jul. 12, 2017	Apr. 19, 2017	Jan. 31, 2017	Aug. 01, 2016	Feb. 01, 2016	Jun. 30, 2017	Mar. 31, 2016
Public Utilities, General Disclosures [Line Items]
Estimated recovery challenged amount							$ 13
Subsequent event
Public Utilities, General Disclosures [Line Items]
Estimated recovery disallowed, including interest	$ 16
Electric Rate Case Filing 2016
Public Utilities, General Disclosures [Line Items]
Requested rate increase					$ 344
Self-implemented base rate				$ 245
Approved annual revenue change			$ 184
Return on equity percent			10.10%
Electric Rate Case Filing 2017
Public Utilities, General Disclosures [Line Items]
Requested rate increase		$ 231
Return on equity percent		10.10%
Return on equity requested percent		10.50%
Refundable self-implemented rates \| Electric Rate Case Filing 2016
Public Utilities, General Disclosures [Line Items]
Refund liabilities						$ 37