XML 69 R47.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Property, Plant, and Equipment (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Property, Plant and Equipment [Abstract] |
PP&E by Classification, Summary of Depreciation and Amortization | The following is a summary of Property, plant, and equipment by classification as of December 31:
| 2023 |  | 2022
Property, plant, and equipment | (In millions)
DTE Electric |  |  |
Zero carbon generation |  |  |
Nuclear | $ | 3,812 |  |  | $ | 3,684 |
Renewables | 3,074 |  |  | 2,567 |
Fossil and other generation | 4,157 |  |  | 8,789 |
Distribution | 13,673 |  |  | 12,502 |
Other | 3,220 |  |  | 3,049 |
Total DTE Electric | 27,936 |  |  | 30,591 |
DTE Gas |  |  |
Distribution | 5,838 |  |  | 5,376 |
Storage | 578 |  |  | 607 |
Transmission and other | 1,613 |  |  | 1,534 |
Total DTE Gas | 8,029 |  |  | 7,517 |
DTE Vantage | 1,075 |  |  | 1,059 |
Other | 234 |  |  | 179 |
Total DTE Energy | $ | 37,274 |  |  | $ | 39,346 |
Accumulated depreciation and amortization |  |  |
DTE Electric |  |  |
Zero carbon generation |  |  |
Nuclear | $ | (479) |  |  | $ | (428) |
Renewables | (524) |  |  | (426) |
Fossil and other generation | (1,393) |  |  | (3,352) |
Distribution | (3,205) |  |  | (3,040) |
Other | (969) |  |  | (849) |
Total DTE Electric | (6,570) |  |  | (8,095) |
DTE Gas |  |  |
Distribution | (1,365) |  |  | (1,330) |
Storage | (132) |  |  | (163) |
Transmission and other | (493) |  |  | (461) |
Total DTE Gas | (1,990) |  |  | (1,954) |
DTE Vantage | (479) |  |  | (469) |
Other | (66) |  |  | (61) |
Total DTE Energy | $ | (9,105) |  |  | $ | (10,579) |
Net DTE Energy Property, plant, and equipment | $ | 28,169 |  |  | $ | 28,767 |
Net DTE Electric Property, plant, and equipment | $ | 21,366 |  |  | $ | 22,496 |
The following is a summary of Depreciation and amortization expense for DTE Energy:
| 2023 |  | 2022 |  | 2021
| (In millions)
Property, plant, and equipment | $ | 1,239 |  |  | $ | 1,148 |  |  | $ | 1,095 |
Regulatory assets and liabilities | 344 |  |  | 297 |  |  | 259 |
Intangible assets | 15 |  |  | 16 |  |  | 16 |
Other | 8 |  |  | 7 |  |  | 7 |
| $ | 1,606 |  |  | $ | 1,468 |  |  | $ | 1,377 |
The following is a summary of Depreciation and amortization expense for DTE Electric:
| 2023 |  | 2022 |  | 2021
| (In millions)
Property, plant, and equipment | $ | 1,029 |  |  | $ | 951 |  |  | $ | 890 |
Regulatory assets and liabilities | 292 |  |  | 248 |  |  | 214 |
Other | 5 |  |  | 5 |  |  | 5 |
| $ | 1,326 |  |  | $ | 1,204 |  |  | $ | 1,109 |
Schedule of AFUDC and Capitalized Interest Rates | The AFUDC and capitalized interest rates were as follows for the years ended December 31:
| 2023 |  | 2022 |  | 2021
DTE Electric AFUDC | 5.53 | % |  | 5.46 | % |  | 5.46 | %
DTE Gas AFUDC | 5.41 | % |  | 5.41 | % |  | 5.55 | %
Non-regulated businesses capitalized interest | 3.00 | % |  | 3.00 | % |  | 3.30 | %
Schedule of AFUDC and Interest Capitalized | The following is a summary of AFUDC and interest capitalized for the years ended December 31:
| 2023 |  | 2022 |  | 2021
DTE Energy | (In millions)
Allowance for debt funds used during construction and interest capitalized | $ | 20 |  |  | $ | 13 |  |  | $ | 12 |
Allowance for equity funds used during construction | 42 |  |  | 29 |  |  | 27 |
Total | $ | 62 |  |  | $ | 42 |  |  | $ | 39 |
| 2023 |  | 2022 |  | 2021
DTE Electric | (In millions)
Allowance for debt funds used during construction | $ | 15 |  |  | $ | 11 |  |  | $ | 11 |
Allowance for equity funds used during construction | 40 |  |  | 26 |  |  | 25 |
Total | $ | 55 |  |  | $ | 37 |  |  | $ | 36 |
Schedule of Utility Property, Plant, and Equipment | The average estimated useful life for each major class of utility Property, plant, and equipment as of December 31, 2023 follows:
|  | Estimated Useful Lives in Years
Utility |  | Generation |  | Distribution |  | Storage
DTE Electric |  | 34 |  | 38 |  | N/A
DTE Gas |  | N/A |  | 49 |  | 58
Schedule of Capitalized Software | The following balances for capitalized software relate to DTE Energy:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| (In millions)
Amortization expense of capitalized software | $ | 189 |  |  | $ | 159 |  |  | $ | 145 |
Gross carrying value of capitalized software | $ | 940 |  |  | $ | 796 |  |  |
Accumulated amortization of capitalized software | $ | 427 |  |  | $ | 406 |  |  |
The following balances for capitalized software relate to DTE Electric:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| (In millions)
Amortization expense of capitalized software | $ | 172 |  |  | $ | 146 |  |  | $ | 132 |
Gross carrying value of capitalized software | $ | 849 |  |  | $ | 692 |  |  |
Accumulated amortization of capitalized software | $ | 369 |  |  | $ | 343 |  |  |

X
- Definition Schedule Of Allowance For Funds Used During Construction And Capitalized Interest Rates + References No definition available. + Details
Name: | dte_ScheduleOfAllowanceForFundsUsedDuringConstructionAndCapitalizedInterestRatesTableTextBlock
Namespace Prefix: | dte_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Capitalized Software [Table Text Block] + References No definition available. + Details
Name: | dte_ScheduleofCapitalizedSoftwareTableTextBlock
Namespace Prefix: | dte_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Interest Costs Capitalized [Table Text Block] + References No definition available. + Details
Name: | dte_ScheduleofInterestCostsCapitalizedTableTextBlock
Namespace Prefix: | dte_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of public utility physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation expense and method used, including composite depreciation, and accumulated depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 980 -SubTopic 20 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481834/980-20-45-1 + Details
Name: | us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration