v3.25.2
SEGMENT AND RELATED INFORMATION (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
segment
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Segment Reporting Information [Line Items]          
Number of segments | segment     2    
Revenues          
Operating revenues $ 309 $ 244 $ 612 $ 484  
Operating Expenses          
Operation and maintenance 80 52 158 106  
Depreciation and amortization 63 53 126 103  
Taxes other than income 11 9 25 21  
Other (Income) and Deductions          
Interest expense 40 39 80 79  
Interest income 0 0 (1) (1)  
Earnings from equity method investees (30) (39) (67) (85)  
Other income 0 (3) 0 (3)  
Income Tax Expense 34 33 69 64  
Less: Net Income Attributable to Noncontrolling Interests 4 4 7 7  
Net Income Attributable to DT Midstream 107 96 215 193  
Capital expenditures 81 81 152 179  
Investments in equity method investees 1,288   1,288   $ 1,297
Total Assets 9,960   9,960   9,935
Pipeline          
Revenues          
Operating revenues 176 109 345 216  
Gathering          
Revenues          
Operating revenues 133 135 267 268  
Operating segments          
Revenues          
Operating revenues 309 244 612 484  
Operating Expenses          
Operation and maintenance 80 52 158 106  
Depreciation and amortization 63 53 126 103  
Taxes other than income 11 9 25 21  
Other (Income) and Deductions          
Interest expense 40 39 80 79  
Interest income     (1) (1)  
Earnings from equity method investees (30) (39) (67) (85)  
Other income   (3)   (3)  
Income Tax Expense 34 33 69 64  
Less: Net Income Attributable to Noncontrolling Interests 4 4 7 7  
Net Income Attributable to DT Midstream 107 96 215 193  
Capital expenditures 81 81 152 179  
Investments in equity method investees 1,288   1,288   1,297
Total Assets 9,960   9,960   9,935
Operating segments | Pipeline          
Revenues          
Operating revenues 176 109 345 216  
Operating Expenses          
Operation and maintenance 34 15 66 31  
Depreciation and amortization 28 19 56 37  
Taxes other than income 7 5 16 11  
Other (Income) and Deductions          
Interest expense 11 12 24 25  
Interest income     (1) (1)  
Earnings from equity method investees (30) (39) (67) (85)  
Other income   (2)   (2)  
Income Tax Expense 29 24 59 48  
Less: Net Income Attributable to Noncontrolling Interests 4 4 7 7  
Net Income Attributable to DT Midstream 93 71 185 145  
Capital expenditures 20 18 44 39  
Investments in equity method investees 1,288   1,288   1,297
Total Assets 5,262   5,262   5,274
Operating segments | Gathering          
Revenues          
Operating revenues 133 135 267 268  
Operating Expenses          
Operation and maintenance 46 37 92 75  
Depreciation and amortization 35 34 70 66  
Taxes other than income 4 4 9 10  
Other (Income) and Deductions          
Interest expense 29 27 56 54  
Interest income     0 0  
Earnings from equity method investees 0 0 0 0  
Other income   (1)   (1)  
Income Tax Expense 5 9 10 16  
Less: Net Income Attributable to Noncontrolling Interests 0 0 0 0  
Net Income Attributable to DT Midstream 14 25 30 48  
Capital expenditures 61 63 108 140  
Investments in equity method investees 0   0   0
Total Assets 4,698   4,698   4,661
Eliminations          
Revenues          
Operating revenues 0 0 0 0  
Operating Expenses          
Operation and maintenance 0 0 0 0  
Depreciation and amortization 0 0 0 0  
Taxes other than income 0 0 0 0  
Other (Income) and Deductions          
Interest expense 0 0 0 0  
Interest income     0 0  
Earnings from equity method investees 0 0 0 0  
Other income   0   0  
Income Tax Expense 0 0 0 0  
Less: Net Income Attributable to Noncontrolling Interests 0 0 0 0  
Net Income Attributable to DT Midstream 0 0 0 0  
Capital expenditures 0 $ 0 0 $ 0  
Investments in equity method investees 0   0   0
Total Assets $ 0   $ 0   $ 0