Increase (Decrease) in Effective Tax Rate from Prior Year, Change in Enacted Tax Rate, Percent

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- Definition

Increase (Decrease) in Effective Tax Rate from Prior Year, Tax Credit, Annual Production, Percent

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Increase (Decrease) in Effective Tax Rate from Prior Year, Tax Cuts And Jobs Act Of 2017, Amortization Of Regulatory Liability, Percent

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Increase (Decrease) in Effective Tax Rate from Prior Year, Percent

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- Definition

Significant Accounting Policies [Line Items]

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- Definition

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

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- Definition

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due. This amount is the total of current and noncurrent accrued income taxes.

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

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

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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.

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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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Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

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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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Significant Accounting Policies (Details Textuals) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Significant Accounting Policies [Line Items]
Effective tax rate increase (decrease)	(147.00%)		0.00%
Effective tax rate decrease due to amortization of TCJA regulatory liability	72.00%		5.00%
Effective tax rate (decrease) increase due to annual production tax credits	(66.00%)		7.00%
Effective tax rate decrease due to West Virginia law change	7.00%		2.00%
Unrecognized compensation cost	$ 93		$ 93
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	$ 133		$ 133
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]
Effective tax rate increase (decrease)	(8.00%)		(8.00%)
DTE Electric \| Notes receivable
Significant Accounting Policies [Line Items]
Financing receivables	$ 17		$ 17
DTE Electric \| DTE Energy
Significant Accounting Policies [Line Items]
Income tax receivable	26		26		$ 33
Income tax payable					$ 2
Allocated costs	$ 9	$ 11	$ 21	$ 25