XML 123 R103.htm IDEA: XBRL DOCUMENT
v3.22.4

Fair Value (Assets and Liabilities Recorded at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Derivative assets |  |
Derivative assets, gross | $ 1,922 | $ 1,391
Derivative assets, netting | $ (1,489) | $ (1,120)
Derivative Asset, Statement of Financial Position [Extensible Enumeration] | Derivative Asset, Current, Derivative Asset, Noncurrent | Derivative Asset, Current, Derivative Asset, Noncurrent
Liabilities |  |
Derivative liabilities, gross | $ (2,169) | $ (1,508)
Derivative liabilities, netting | 1,512 | 1,078
DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 1,825 | 2,071
Current liabilities |  |
Liabilities |  |
Derivative liabilities, gross | (1,535) | (1,037)
Noncurrent liabilities |  |
Liabilities |  |
Derivative liabilities, gross | (634) | (471)
Natural Gas |  |
Derivative assets |  |
Derivative assets, gross | 744 | 454
Derivative assets, netting | (649) | (394)
Liabilities |  |
Derivative liabilities, gross | (1,018) | (594)
Derivative liabilities, netting | 645 | 347
Electricity |  |
Derivative assets |  |
Derivative assets, gross | 963 | 643
Derivative assets, netting | (643) | (441)
Liabilities |  |
Derivative liabilities, gross | (935) | (622)
Derivative liabilities, netting | 665 | 443
Environmental & Other |  |
Derivative assets |  |
Derivative assets, gross | 213 | 294
Derivative assets, netting | (196) | (285)
Liabilities |  |
Derivative liabilities, gross | (214) | (288)
Derivative liabilities, netting | 201 | 288
Cash equivalents | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 42 | 39
Private equity and other | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 262 | 205
Hedge Funds and Similar Investments | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 119 | 76
Equity securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 839 | 1,107
Fixed income securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 563 | 644
Recurring |  |
Assets |  |
Cash equivalents | 10 | 4
Derivative assets |  |
Derivative assets, netting | (1,489) | (1,120)
Derivative assets, net | 433 | 271
Total assets | 2,403 | 2,507
Liabilities |  |
Derivative liabilities, netting | 1,512 | 1,078
Total Liabilities | (657) | (430)
Net Assets (Liabilities) at end of period | 1,746 | 2,077
Net Assets (Liabilities) at the end of the period, netting | 23 | (42)
Recurring | DTE Electric |  |
Assets |  |
Cash equivalents | 9 | 0
Derivative assets |  |
Total assets | 1,872 | 2,111
Recurring | Current assets |  |
Derivative assets |  |
Derivative assets, netting | (1,189) | (854)
Total assets | 338 | 185
Recurring | Current assets | DTE Electric |  |
Derivative assets |  |
Total assets | 20 | 9
Recurring | Noncurrent assets |  |
Derivative assets |  |
Derivative assets, netting | (300) | (266)
Total assets | 2,065 | 2,322
Recurring | Noncurrent assets | DTE Electric |  |
Derivative assets |  |
Total assets | 1,852 | 2,102
Recurring | Current liabilities |  |
Liabilities |  |
Derivative liabilities, netting | 1,193 | 799
Total Liabilities | (342) | (238)
Recurring | Noncurrent liabilities |  |
Liabilities |  |
Derivative liabilities, netting | 319 | 279
Total Liabilities | (315) | (192)
Recurring | Restricted cash |  |
Assets |  |
Cash equivalents | 10 | 1
Recurring | Restricted cash | DTE Electric |  |
Assets |  |
Cash equivalents | 9 |
Recurring | Natural Gas |  |
Derivative assets |  |
Derivative assets, netting | (649) | (394)
Derivative assets, net | 95 | 60
Liabilities |  |
Derivative liabilities, netting | 645 | 347
Derivative liabilities, net | (373) | (247)
Recurring | Electricity |  |
Derivative assets |  |
Derivative assets, netting | (643) | (441)
Derivative assets, net | 320 | 202
Liabilities |  |
Derivative liabilities, netting | 665 | 443
Derivative liabilities, net | (270) | (179)
Recurring | Environmental & Other |  |
Derivative assets |  |
Derivative assets, netting | (196) | (285)
Derivative assets, net | 17 | 9
Liabilities |  |
Derivative liabilities, netting | 201 | 288
Derivative liabilities, net | (13) | 0
Recurring | Other contracts |  |
Derivative assets |  |
Derivative assets, netting | (1) | 0
Derivative assets, net | 1 | 0
Liabilities |  |
Derivative liabilities, netting | 1 | 0
Derivative liabilities, net | (1) | (4)
Recurring | Derivative assets — FTRs | DTE Electric |  |
Derivative assets |  |
Derivative assets, net | 11 | 9
Recurring | Cash equivalents |  |
Assets |  |
Nuclear decommissioning trusts | 42 | 39
Other investments | 72 | 86
Recurring | Cash equivalents | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 42 | 39
Other investments | 11 | 11
Recurring | Private equity and other |  |
Assets |  |
Nuclear decommissioning trusts | 262 | 205
Recurring | Private equity and other | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 262 | 205
Recurring | Hedge Funds and Similar Investments |  |
Assets |  |
Nuclear decommissioning trusts | 119 | 76
Recurring | Hedge Funds and Similar Investments | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 119 | 76
Recurring | Equity securities |  |
Assets |  |
Nuclear decommissioning trusts | 839 | 1,107
Other investments | 56 | 68
Recurring | Equity securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 839 | 1,107
Other investments | 16 | 20
Recurring | Fixed income securities |  |
Assets |  |
Nuclear decommissioning trusts | 563 | 644
Other investments | 7 | 7
Recurring | Fixed income securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 563 | 644
Recurring | Level 1 |  |
Assets |  |
Cash equivalents | 10 | 4
Derivative assets |  |
Derivative assets, gross | 426 | 273
Total assets | 1,507 | 1,576
Liabilities |  |
Total Liabilities | (297) | (177)
Net Assets (Liabilities) at end of period | 1,210 | 1,399
Recurring | Level 1 | DTE Electric |  |
Assets |  |
Cash equivalents | 9 | 0
Derivative assets |  |
Total assets | 972 | 1,169
Recurring | Level 1 | Current assets |  |
Derivative assets |  |
Total assets | 360 | 227
Recurring | Level 1 | Current assets | DTE Electric |  |
Derivative assets |  |
Total assets | 9 | 0
Recurring | Level 1 | Noncurrent assets |  |
Derivative assets |  |
Total assets | 1,147 | 1,349
Recurring | Level 1 | Noncurrent assets | DTE Electric |  |
Derivative assets |  |
Total assets | 963 | 1,169
Recurring | Level 1 | Current liabilities |  |
Liabilities |  |
Total Liabilities | (273) | (168)
Recurring | Level 1 | Noncurrent liabilities |  |
Liabilities |  |
Total Liabilities | (24) | (9)
Recurring | Level 1 | Natural Gas |  |
Derivative assets |  |
Derivative assets, gross | 426 | 273
Liabilities |  |
Derivative liabilities, gross | (297) | (177)
Recurring | Level 1 | Electricity |  |
Derivative assets |  |
Derivative assets, gross | 0 | 0
Liabilities |  |
Derivative liabilities, gross | 0 | 0
Recurring | Level 1 | Environmental & Other |  |
Derivative assets |  |
Derivative assets, gross | 0 | 0
Liabilities |  |
Derivative liabilities, gross | 0 | 0
Recurring | Level 1 | Other contracts |  |
Derivative assets |  |
Derivative assets, gross | 0 | 0
Liabilities |  |
Derivative liabilities, gross | 0 | 0
Recurring | Level 1 | Derivative assets — FTRs | DTE Electric |  |
Derivative assets |  |
Derivative assets, net | 0 | 0
Recurring | Level 1 | Cash equivalents |  |
Assets |  |
Nuclear decommissioning trusts | 42 | 39
Other investments | 72 | 86
Recurring | Level 1 | Cash equivalents | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 42 | 39
Other investments | 11 | 11
Recurring | Level 1 | Private equity and other |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Level 1 | Private equity and other | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Level 1 | Hedge Funds and Similar Investments |  |
Assets |  |
Nuclear decommissioning trusts | 78 | 58
Recurring | Level 1 | Hedge Funds and Similar Investments | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 78 | 58
Recurring | Level 1 | Equity securities |  |
Assets |  |
Nuclear decommissioning trusts | 701 | 917
Other investments | 56 | 68
Recurring | Level 1 | Equity securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 701 | 917
Other investments | 16 | 20
Recurring | Level 1 | Fixed income securities |  |
Assets |  |
Nuclear decommissioning trusts | 115 | 124
Other investments | 7 | 7
Recurring | Level 1 | Fixed income securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 115 | 124
Recurring | Level 2 |  |
Assets |  |
Cash equivalents | 0 | 0
Derivative assets |  |
Derivative assets, gross | 1,106 | 900
Total assets | 1,506 | 1,336
Liabilities |  |
Total Liabilities | (1,205) | (898)
Net Assets (Liabilities) at end of period | 301 | 438
Recurring | Level 2 | DTE Electric |  |
Assets |  |
Cash equivalents | 0 | 0
Derivative assets |  |
Total assets | 400 | 436
Recurring | Level 2 | Current assets |  |
Derivative assets |  |
Total assets | 881 | 646
Recurring | Level 2 | Current assets | DTE Electric |  |
Derivative assets |  |
Total assets | 0 | 0
Recurring | Level 2 | Noncurrent assets |  |
Derivative assets |  |
Total assets | 625 | 690
Recurring | Level 2 | Noncurrent assets | DTE Electric |  |
Derivative assets |  |
Total assets | 400 | 436
Recurring | Level 2 | Current liabilities |  |
Liabilities |  |
Total Liabilities | (876) | (609)
Recurring | Level 2 | Noncurrent liabilities |  |
Liabilities |  |
Total Liabilities | (329) | (289)
Recurring | Level 2 | Natural Gas |  |
Derivative assets |  |
Derivative assets, gross | 183 | 115
Liabilities |  |
Derivative liabilities, gross | (331) | (172)
Recurring | Level 2 | Electricity |  |
Derivative assets |  |
Derivative assets, gross | 720 | 500
Liabilities |  |
Derivative liabilities, gross | (659) | (434)
Recurring | Level 2 | Environmental & Other |  |
Derivative assets |  |
Derivative assets, gross | 201 | 285
Liabilities |  |
Derivative liabilities, gross | (213) | (288)
Recurring | Level 2 | Other contracts |  |
Derivative assets |  |
Derivative assets, gross | 2 | 0
Liabilities |  |
Derivative liabilities, gross | (2) | (4)
Recurring | Level 2 | Derivative assets — FTRs | DTE Electric |  |
Derivative assets |  |
Derivative assets, net | 0 | 0
Recurring | Level 2 | Cash equivalents |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 2 | Cash equivalents | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 2 | Private equity and other |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Level 2 | Private equity and other | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Level 2 | Hedge Funds and Similar Investments |  |
Assets |  |
Nuclear decommissioning trusts | 41 | 18
Recurring | Level 2 | Hedge Funds and Similar Investments | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 41 | 18
Recurring | Level 2 | Equity securities |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 2 | Equity securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 2 | Fixed income securities |  |
Assets |  |
Nuclear decommissioning trusts | 359 | 418
Other investments | 0 | 0
Recurring | Level 2 | Fixed income securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 359 | 418
Recurring | Level 3 |  |
Assets |  |
Cash equivalents | 0 | 0
Derivative assets |  |
Derivative assets, gross | 390 | 218
Total assets | 390 | 218
Liabilities |  |
Total Liabilities | (667) | (433)
Net Assets (Liabilities) at end of period | (277) | (215)
Recurring | Level 3 | DTE Electric |  |
Assets |  |
Cash equivalents | 0 | 0
Derivative assets |  |
Total assets | 11 | 9
Recurring | Level 3 | Current assets |  |
Derivative assets |  |
Total assets | 286 | 166
Recurring | Level 3 | Current assets | DTE Electric |  |
Derivative assets |  |
Total assets | 11 | 9
Recurring | Level 3 | Noncurrent assets |  |
Derivative assets |  |
Total assets | 104 | 52
Recurring | Level 3 | Noncurrent assets | DTE Electric |  |
Derivative assets |  |
Total assets | 0 | 0
Recurring | Level 3 | Current liabilities |  |
Liabilities |  |
Total Liabilities | (386) | (260)
Recurring | Level 3 | Noncurrent liabilities |  |
Liabilities |  |
Total Liabilities | (281) | (173)
Recurring | Level 3 | Natural Gas |  |
Derivative assets |  |
Derivative assets, gross | 135 | 66
Liabilities |  |
Derivative liabilities, gross | (390) | (245)
Recurring | Level 3 | Electricity |  |
Derivative assets |  |
Derivative assets, gross | 243 | 143
Liabilities |  |
Derivative liabilities, gross | (276) | (188)
Recurring | Level 3 | Environmental & Other |  |
Derivative assets |  |
Derivative assets, gross | 12 | 9
Liabilities |  |
Derivative liabilities, gross | (1) | 0
Recurring | Level 3 | Other contracts |  |
Derivative assets |  |
Derivative assets, gross | 0 | 0
Liabilities |  |
Derivative liabilities, gross | 0 | 0
Recurring | Level 3 | Derivative assets — FTRs | DTE Electric |  |
Derivative assets |  |
Derivative assets, net | 11 | 9
Recurring | Level 3 | Cash equivalents |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 3 | Cash equivalents | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 3 | Private equity and other |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Level 3 | Private equity and other | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Level 3 | Hedge Funds and Similar Investments |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Level 3 | Hedge Funds and Similar Investments | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Level 3 | Equity securities |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 3 | Equity securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 3 | Fixed income securities |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Other investments | 0 | 0
Recurring | Level 3 | Fixed income securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 0 | 0
Recurring | Other |  |
Derivative assets |  |
Total assets | 489 | 497
Liabilities |  |
Net Assets (Liabilities) at end of period | 489 | 497
Recurring | Other | DTE Electric |  |
Derivative assets |  |
Total assets | 489 | 497
Recurring | Other | Noncurrent assets |  |
Derivative assets |  |
Total assets | 489 | 497
Recurring | Other | Noncurrent assets | DTE Electric |  |
Derivative assets |  |
Total assets | 489 | 497
Recurring | Other | Private equity and other |  |
Assets |  |
Nuclear decommissioning trusts | 262 | 205
Recurring | Other | Private equity and other | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 262 | 205
Recurring | Other | Equity securities |  |
Assets |  |
Nuclear decommissioning trusts | 138 | 190
Recurring | Other | Equity securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | 138 | 190
Recurring | Other | Fixed income securities |  |
Assets |  |
Nuclear decommissioning trusts | 89 | 102
Recurring | Other | Fixed income securities | DTE Electric |  |
Assets |  |
Nuclear decommissioning trusts | $ 89 | $ 102

X
- Definition Derivative Asset (Liability), Fair Value, Gross Liability (Asset) and Obligation to Return Cash and Right to Reclaim Cash, Offset + References No definition available. + Details
Name: | dte_DerivativeAssetLiabilityFairValueGrossLiabilityAssetandObligationtoReturnCashandRighttoReclaimCashOffset
Namespace Prefix: | dte_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AssetsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value of investments held in a trust fund to pay for the costs of decontaminating and decommissioning facilities, whether such amount is presented as a separate caption or as a parenthetical disclosure on the balance sheet. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
Name: | us-gaap_DecommissioningTrustAssetsAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, and obligation to return cash collateral under master netting arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226003-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126966630&loc=d3e41228-113958 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 21 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226049-175313 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Indicates line item in statement of financial position that includes derivative asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
Name: | us-gaap_DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration
Namespace Prefix: | us-gaap_
Data Type: | enum2:enumerationSetItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DerivativeAssetsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, and right to receive cash collateral under master netting arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226003-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 21 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226049-175313 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126966630&loc=d3e41228-113958 + Details
Name: | us-gaap_DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of asset after deduction of liability. + References No definition available. + Details
Name: | us-gaap_FairValueNetAssetLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_InvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=dte_CurrentDerivativeLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=dte_NoncurrentDerivativeLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=dte_NaturalGasCommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=dte_ElectricityCommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=dte_EnvironmentalandOtherCommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_PrivateEquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_HedgeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_FixedIncomeSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=dte_CurrentAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=dte_NoncurrentAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=dte_RestrictedCashMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_OtherContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=dte_FinancialTransmissionRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |