Increase (Decrease) in Effective Tax Rate from Prior Year, Change in Deferred Tax Valuation Allowance, Percent

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

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

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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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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

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

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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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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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Amount of unrecognized tax benefits.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Significant Accounting Policies (Details Textuals) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Significant Accounting Policies [Line Items]
Effective tax rate increase (decrease)	(184.00%)		34.00%
Effective tax rate increase (decrease) due to deferred tax remeasurement	(133.00%)		23.00%
Effective tax rate increase (decrease) due to annual production tax credits	(57.00%)		17.00%
Effective tax rate decrease due to amortization of TCJA regulatory liability	32.00%
Effective tax rate increase (decrease) due to valuation allowance	28.00%		(5.00%)
Effective tax rate increase due to deferred intercompany gain	13.00%
Unrecognized compensation cost	$ 81		$ 81
Recognition period (in years)			1 year 4 months 24 days
Specific review of probable future collections based on receivable balances, threshold duration			30 days
State
Significant Accounting Policies [Line Items]
Unrecognized tax benefits	10		$ 10
Unrecognized tax benefits reasonably possible to be recognized in the next 12 months	8		8
Unrecognized tax benefits that, if recognized, would favorably impact effective tax rates	6		6
Past due
Significant Accounting Policies [Line Items]
Financing receivables	0		0
Notes receivable
Significant Accounting Policies [Line Items]
Financing receivables	$ 65		$ 65
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)	(10.00%)		(8.00%)
DTE Electric \| State
Significant Accounting Policies [Line Items]
Unrecognized tax benefits	$ 13		$ 13
Unrecognized tax benefits reasonably possible to be recognized in the next 12 months	9		9
Unrecognized tax benefits that, if recognized, would favorably impact effective tax rates	7		7
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	31		31		$ 33
Income tax payable					$ 2
Allocated costs	$ 9	$ 10	$ 30	$ 35