Amount borrowed under the financing agreement as of the balance sheet date.

No definition available.

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- Definition

Maximum borrowing capacity under the financing agreement without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the agreement.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480657/210-10-S50-8

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Indebtedness divided by net capital.

+ 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480657/210-10-S50-8

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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Short-Term Credit Arrangements and Borrowings (Details Textuals)	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 4,025,000,000
DTE Electric
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 1,600,000,000
Total funded debt to capitalization ratio	0.54
DTE Gas
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 300,000,000
Total funded debt to capitalization ratio	0.49
Maximum \| DTE Electric
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.65
Maximum \| DTE Gas
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.65
DTE Energy
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 2,125,000,000
Total funded debt to capitalization ratio	0.67
DTE Energy \| Demand financing agreement
Short-term Debt [Line Items]
Maximum borrowing capacity, financing agreement	$ 200,000,000
Amount outstanding	$ 84,000,000	$ 94,000,000
DTE Energy \| Maximum
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.70
DTE Energy \| DTE Energy Revolver \| Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 500,000,000