Debt Instrument, Number of Contracts Issued

No definition available.

Name:	dte_DebtInstrumentNumberofContractsIssued
Namespace Prefix:	dte_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Forward Contract Indexed to Issuer's Equity, Contract Adjustment Payments Rate

+ References

No definition available.

+ Details

Name:	dte_ForwardContractIndexedtoIssuersEquityContractAdjustmentPaymentsRate
Namespace Prefix:	dte_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

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

- Details

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

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=dte_CorporateUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ForwardContractIndexedToIssuersEquityTypeAxis=dte_StockPurchaseContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-Term Debt (Schedule of Debt) (Details) contract in Millions	Oct. 05, 2016 USD ($) contract	Sep. 30, 2016 USD ($)
Debt Instrument [Line Items]
Total Long-Term Debt		$ 600,000,000
Subsequent Event \| Senior Notes
Debt Instrument [Line Items]
RSN Annual Interest Rate	1.50%
Subsequent Event \| Corporate Unit
Debt Instrument [Line Items]
Units Issued \| contract	13.5
Total Net Proceeds	$ 654,000,000
Total Long-Term Debt	$ 675,000,000
RSN Annual Interest Rate	6.50%
Stock Purchase Contract \| Subsequent Event
Debt Instrument [Line Items]
Stock Purchase Contract Annual Rate	5.00%
Stock Purchase Contract \| Subsequent Event \| Corporate Unit
Debt Instrument [Line Items]
RSN Annual Interest Rate	5.00%