Significant Accounting Policies [Line Items]

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Specific Review of Probable Future Collections Based on Receivable Balances, Threshold Duration

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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-Subparagraph (SAB Topic 14.F)
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- Definition

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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-Name Accounting Standards Codification
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
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Threshold period for when financing receivable is considered past due, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Excludes threshold period past due to write off as uncollectible.

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax settlement.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
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Threshold period past due for trade accounts receivable to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

Amount of interest expense accrued for an underpayment of income taxes.

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Significant Accounting Policies (Details Textuals) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Significant Accounting Policies [Line Items]
Accounts receivable	$ 1,304		$ 1,304		$ 2,038
Unrecognized tax benefits decrease as a result of settlements related to state exposures	10
Reduction to income tax expense as a result of state settlements	8
Accrued interest pertaining to income taxes					5
Unrecognized tax benefits	5		5
Reasonably possible decrease in unrecognized tax benefits within the next 12 months	5		5
Unrecognized compensation cost	91		$ 91
Recognition period (in years)			1 year 7 months 6 days
Specific review of probable future collections based on receivable balances, threshold duration			30 days
Past due
Significant Accounting Policies [Line Items]
Financing receivables	0		$ 0
Notes receivable
Significant Accounting Policies [Line Items]
Financing receivables	$ 111		$ 111
Notes receivable \| Minimum
Significant Accounting Policies [Line Items]
Number of days after which receivable is considered delinquent	60 days		60 days
Notes receivable \| Maximum
Significant Accounting Policies [Line Items]
Number of days after which receivable is considered delinquent	120 days		120 days
DTE Electric and DTE Gas
Significant Accounting Policies [Line Items]
Threshold period past due for write-off of trade accounts receivable			150 days
DTE Electric and DTE Gas \| Accounts receivable
Significant Accounting Policies [Line Items]
Number of days after which receivable is considered delinquent	21 days		21 days
DTE Electric
Significant Accounting Policies [Line Items]
Unrecognized tax benefits decrease as a result of settlements related to state exposures	$ 13
Reduction to income tax expense as a result of state settlements	10
Accrued interest pertaining to income taxes					8
DTE Electric \| Notes receivable
Significant Accounting Policies [Line Items]
Financing receivables	2		$ 2
DTE Electric \| DTE Energy
Significant Accounting Policies [Line Items]
Allocated costs	10	$ 9	20	$ 21
DTE Electric \| DTE Energy \| State taxes
Significant Accounting Policies [Line Items]
Accounts receivable	$ 2		$ 2		$ 1