| Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
|---|
| Cash and cash equivalents | 132 | 61 | 56 | 68 |
|---|
| Accounts Receivable, after Allowance for Credit Loss, Current | 169 | 161 | 154 | 172 |
|---|
| Prepaid Taxes | 25 | 22 | 31 | 33 |
|---|
| Taxes receivable | - | - | 15 | 8 |
|---|
| Prepaid expenses and other | - | - | 16 | 29 |
|---|
| Total Current Assets | 360 | 262 | 272 | 310 |
|---|
| Equity Method Investments | 1,691 | 2,200 | 1,762 | 1,297 |
|---|
| Property, plant, and equipment | 4,109 | 4,534 | 5,282 | 6,525 |
|---|
| Accumulated depreciation | 619 | 728 | 848 | 998 |
|---|
| Net Property, plant, and equipment | 3,490 | 3,806 | 4,434 | 5,527 |
|---|
| Goodwill | 473 | 473 | 473 | 776 |
|---|
| Other Receivables, Net, Current | - | - | 4 | 4 |
|---|
| Operating lease right-of-use assets | 36 | 31 | 38 | 49 |
|---|
| Intangible assets, net | 2,082 | 2,025 | 1,968 | 1,921 |
|---|
| Other | 32 | 32 | 31 | 51 |
|---|
| Total Other Assets | 2,625 | 2,565 | 2,514 | 2,801 |
|---|
| Total Assets | 8,166 | 8,833 | 8,982 | 9,935 |
|---|
| Accounts payable | 22 | 119 | 94 | 77 |
|---|
| Short-Term Debt | - | 330 | 165 | 150 |
|---|
| Operating lease liabilities | 16 | 16 | 13 | 16 |
|---|
| Dividends payable | 58 | 62 | 67 | 75 |
|---|
| Interest payable | - | 10 | 10 | 12 |
|---|
| Property taxes payable | 24 | 29 | 34 | 42 |
|---|
| Accrued compensation | - | 20 | 18 | 19 |
|---|
| Contract liabilities | - | - | 18 | 18 |
|---|
| Other | 47 | 28 | 15 | 17 |
|---|
| Total Current Liabilities | 177 | 614 | 434 | 426 |
|---|
| Long-Term Debt, net | 3,036 | 3,059 | 3,065 | 3,319 |
|---|
| Deferred income taxes | 856 | 923 | 1,031 | 1,129 |
|---|
| Operating lease liabilities | 21 | 19 | 27 | 36 |
|---|
| Contract liabilities | - | - | 111 | 135 |
|---|
| Regulatory liabilities | - | - | - | 90 |
|---|
| Other | 55 | 64 | 34 | 34 |
|---|
| Total Other Liabilities | 932 | 1,006 | 1,203 | 1,424 |
|---|
| Total Liabilities | 4,145 | 4,679 | 4,702 | 5,169 |
|---|
| Common Stock, Value, Issued | 1 | 1 | 1 | 1 |
|---|
| Additional paid-in capital | 3,450 | 3,469 | 3,485 | 3,911 |
|---|
| Retained earnings | 431 | 547 | 661 | 723 |
|---|
| Accumulated other comprehensive income (loss) | -10 | -10 | -8 | -8 |
|---|
| Total DT Midstream Equity | 4,021 | 4,154 | 4,280 | 4,766 |
|---|
| Noncontrolling interests | 149 | 147 | 141 | 139 |
|---|
| Total Equity | 4,021 | 4,154 | 4,280 | 4,766 |
|---|
| Total Liabilities and Equity | 8,166 | 8,833 | 8,982 | 9,935 |
|---|