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Significant Accounting Policies (Uncollectible Expense) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Uncollectible expense | $ 55 | $ 55 | $ 55
DTE Electric |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Uncollectible expense | $ 38 | $ 35 | $ 36

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- Definition Financing Receivable, Credit Loss, Expense (Reversal), Adjusted For Regulatory Deferrals + References No definition available. + Details
Name: | dte_FinancingReceivableCreditLossExpenseReversalAdjustedForRegulatoryDeferrals
Namespace Prefix: | dte_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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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
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=dte_DTEElectricMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |