| Document and Entity Information | Jun. 07, 2021 |
| Document And Entity Information [Line Items] | |
| Entity Registrant Name | DTE ENERGY CO |
| Entity Address, State or Province | MI |
| Amendment Flag | false |
| Entity Central Index Key | 0000936340 |
| Document Type | 8-K |
| Document Period End Date | Jun. 7, 2021 |
| Entity File Number | 1-11607 |
| Entity Incorporation State Country Code | MI |
| Entity Tax Identification Number | 38-3217752 |
| Entity Address, Address Line One | One Energy Plaza |
| Entity Address, City or Town | Detroit |
| Entity Address, Postal Zip Code | 48226-1279 |
| City Area Code | (313) |
| Local Phone Number | 235-4000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Common Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Common stock, without par value |
| Trading Symbol | DTE |
| Security Exchange Name | NYSE |
| M 2016 Series B 5.375 Junior Subordinated Debentures Due 2076 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 2016 Series B 5.375% Junior Subordinated Debentures due 2076 |
| Trading Symbol | DTJ |
| Security Exchange Name | NYSE |
| M 2016 Series F 6.00 Junior Subordinated Debentures Due 2076 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 2016 Series F 6.00% Junior Subordinated Debentures due 2076 |
| Trading Symbol | DTY |
| Security Exchange Name | NYSE |
| M 2017 Series E 5.25 Junior Subordinated Debentures Due 2077 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 2017 Series E 5.25% Junior Subordinated Debentures due 2077 |
| Trading Symbol | DTW |
| Security Exchange Name | NYSE |
| Capital Units [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 2019 6.25% Corporate Units |
| Trading Symbol | DTP |
| Security Exchange Name | NYSE |
| M 2020 Series G 4.375 Junior Subordinated Debentures Due 2080 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 2020 Series G 4.375% Junior Subordinated Debentures due 2080 |
| Trading Symbol | DTB |
| Security Exchange Name | NYSE |
