Public Utilities, Approved Acceleration Of Amortization, Regulatory Liability, Tax Cuts And Jobs Act

No definition available.

Name:	dte_PublicUtilitiesApprovedAccelerationOfAmortizationRegulatoryLiabilityTaxCutsAndJobsAct
Namespace Prefix:	dte_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Public Utilities, Approved Rate Increase (Decrease), Net Increase (Decrease) To Customers

+ References

No definition available.

+ Details

Name:	dte_PublicUtilitiesApprovedRateIncreaseDecreaseNetIncreaseDecreaseToCustomers
Namespace Prefix:	dte_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of public utility's approved return on equity.

+ References

No definition available.

+ Details

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

- 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

Name:	us-gaap_PublicUtilitiesGeneralDisclosuresLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of indirect disallowance of costs of a recently completed plant. When it becomes probable that part of the cost of a recently completed plant will be disallowed for rate-making purposes and a reasonable estimate of the amount of the disallowance can be made, the estimated amount of the probable disallowance is deducted from the reported cost of the plant and recognized as a loss. If part of the cost is explicitly, but indirectly, disallowed (for example, by an explicit disallowance of return on investment on a portion of the plant), an equivalent amount of cost is deducted from the reported cost of the plant and recognized as a loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 360
-Section 35
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6500292&loc=d3e45799-110387

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 360
-Section 35
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6500292&loc=d3e45819-110387

+ Details

Name:	us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAmountOfIndirectDisallowanceOfCostsOfRecentlyCompletedPlants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of public utility's requested return on equity.

+ References

No definition available.

+ Details

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

- Details

Name:	dei_LegalEntityAxis=dte_DTEElectricMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RegulatoryAgencyAxis=dte_MPSCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=dte_ElectricRateCaseFiling2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=dte_DTEGasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PublicUtilitiesRegulatoryProceedingAxis=dte_DTEGasRateCaseFiling2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Regulatory Matters (Details Textuals) - MPSC - USD ($) $ in Millions	Jul. 17, 2020	May 08, 2020	Nov. 25, 2019	Jul. 08, 2019	Jul. 09, 2020
DTE Electric \| 2019 Electric Rate Case Filing
Public Utilities, General Disclosures [Line Items]
Requested rate increase				$ 351
Return on equity percent		9.90%		10.00%
Return on equity requested percent				10.50%
Approved rate increase		$ 188
Disallowed cost, capital expenditures related to incentive compensation		41
DTE Electric \| 2019 Electric Rate Case Filing \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Regulatory liability for non-plant-related accumulated deferred income tax balances that resulted from the TCJA, accelerated amortization approved					$ 102
DTE Gas \| 2019 Gas Rate Case Filing
Public Utilities, General Disclosures [Line Items]
Requested rate increase			$ 204
Return on equity percent			10.00%
Return on equity requested percent			10.50%
Disallowed cost, capital expenditures related to incentive compensation		$ 14
DTE Gas \| 2019 Gas Rate Case Filing \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Return on equity percent	9.90%
Approved rate increase	$ 110
Regulatory liability for non-plant-related accumulated deferred income tax balances that resulted from the TCJA, accelerated amortization approved	20
Net increase to customers due to rate increase	$ 51