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Discontinued Operations (Tables) | 12 Months Ended
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Dec. 31, 2022
Discontinued Operations and Disposal Groups [Abstract] |
Disposal Groups, Including Discontinued Operations | The table below reflects the financial results of DT Midstream that are included in discontinued operations within the Consolidated Statements of Operations. These results include the impact of tax-related adjustments and all transaction costs related to the separation. General corporate overhead costs have been excluded and no portion of corporate interest costs were allocated to discontinued operations.
|  |  | Year Ended December 31,
|  |  | 2021 |  | 2020
Operating Revenues — Non-utility operations |  |  | $ | 405 |  |  | $ | 754 |
Operating Expenses |  |  |  |  |
Cost of gas and other — non-utility |  |  | 15 |  |  | 21 |
Operation and maintenance(a) |  |  | 123 |  |  | 138 |
Depreciation and amortization |  |  | 82 |  |  | 151 |
Taxes other than income |  |  | 13 |  |  | 15 |
Asset (gains) losses and impairments, net |  |  | 17 |  |  | (2) |
|  |  | 250 |  |  | 323 |
Operating Income |  |  | 155 |  |  | 431 |
Other (Income) and Deductions |  |  |  |  |
Interest expense |  |  | 50 |  |  | 113 |
Interest income |  |  | (4) |  |  | (9) |
Other income |  |  | (62) |  |  | (129) |
|  |  | (16) |  |  | (25) |
Income from Discontinued Operations Before Income Taxes |  |  | 171 |  |  | 456 |
Income Tax Expense |  |  | 54 |  |  | 130 |
Net Income from Discontinued Operations, Net of Taxes |  |  | 117 |  |  | 326 |
Less: Net Income Attributable to Noncontrolling Interests |  |  | 6 |  |  | 12 |
Net Income from Discontinued Operations |  |  | $ | 111 |  |  | $ | 314 |
_______________________________________ (a)Includes separation transaction costs of $59 million and $8 million for the years ended December 31, 2021 and 2020, respectively, for various legal, accounting and other professional services fees. The following table is a summary of significant non-cash items, capital expenditures, and significant financing activities of discontinued operations included in DTE Energy's Consolidated Statements of Cash Flows:
|  |  | Year Ended December 31,
|  |  | 2021 |  | 2020
|  |  | (In millions)
Operating Activities |  |  |  |  |
Depreciation and amortization |  |  | $ | 82 |  |  | $ | 151 |
Deferred income taxes |  |  | 53 |  |  | 125 |
Equity earnings of equity method investees |  |  | (59) |  |  | (106) |
Asset (gains) losses and impairments, net |  |  | 19 |  |  | (2) |
Investing Activities |  |  |  |  |
Plant and equipment expenditures — non-utility |  |  | (60) |  |  | (517) |
Financing Activities |  |  |  |  |
Acquisition related deferred payment, excluding accretion |  |  | — |  |  | (380) |

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