Amount of increase (decrease) in plan assets of defined benefit plan from assets transferred into (from) plan.

No definition available.

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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 contributions received and expected to be received by defined benefit plan from employer in current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921

+ Details

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- Definition

Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits.

+ References

No definition available.

+ Details

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Retirement Benefits and Trusteed Assets (Details Textuals) - USD ($)	3 Months Ended			9 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Pension plans \| Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Anticipated contributions, current fiscal year		$ 0		$ 0
Postretirement benefit plans
Defined Benefit Plan Disclosure [Line Items]
Anticipated contributions, current fiscal year		0		0
DTE Electric \| Pension plans
Defined Benefit Plan Disclosure [Line Items]
Pension cost		$ 9,000,000	$ 26,000,000	$ 27,000,000	$ 78,000,000
DTE Electric \| Pension plans \| Qualified Plan \| Maximum \| Forecast
Defined Benefit Plan Disclosure [Line Items]
Pension funds transferred to (from) plan	$ 50,000,000
DTE Gas \| Pension plans \| Qualified Plan \| Maximum \| Forecast
Defined Benefit Plan Disclosure [Line Items]
Pension funds transferred to (from) plan	$ (50,000,000)