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Segment and Related Information (Tables)
 9 Months Ended
Sep. 30, 2026
Segment Reporting [Abstract]  
Schedule of Inter-segment Billing for Goods and Services and Profit (Loss) Financial Data
Inter-segment billing for goods and services exchanged between segments is based upon tariffed or market-based prices of the provider. Such billing primarily consists of power sales, sale and transportation of natural gas, and renewable natural gas sales in the segments below, as well as charges from Electric to other segments for use of the shared capital assets of DTE Electric.
Three Months Ended September 30,Nine Months Ended September 30,
2026202520262025
(In millions)
Electric segment(a)
$18 $17 $53 $53 
Gas segment8 7 22 15 
DTE Vantage segment17 7 66 58 
Energy Trading segment40 44 129 134 
$83 $75 $270 $260 
_______________________________________
(a)Inter-segment billing for the Electric segment relating to Non-utility operations includes $1 million for both the three months ended September 30, 2026 and 2025 and $3 million for both the nine months ended September 30, 2026 and 2025.
Profit (loss) financial data of DTE Energy's business segments follows:
Electric(a)
Gas
DTE
Vantage
Energy
Trading
Total
Reportable
Segments
Corporate
and
Other
Reclassifications
and
Eliminations
Total
(In millions)
Three months ended September 30, 2026
Operating Revenues — Utility operations$2,081 214 — — $2,295 — (25)$2,270 
Operating Revenues — Non-utility operations$22 — 201 1,292 $1,515 — (58)$1,457 
Depreciation and amortization$431 59 15 1 $506 — — $506 
Interest expense$164 35 9 4 $212 128 (23)$317 
Interest income$(3)(2)(25)(1)$(31)(24)23 $(32)
Equity earnings of equity method investees$— — 5 — $5 — — $5 
Other segment items (pre-tax)(b)
$1,073 161 159 1,257 $2,650 1 (83)$2,568 
Income Tax Expense (Benefit)$(30)(9)(72)8 $(103)(4)— $(107)
Net Income (Loss) Attributable to DTE Energy Company$468 (30)110 23 $571 (101)— $470 
Three months ended September 30, 2025
Operating Revenues — Utility operations$2,037 209 — — $2,246 — (23)$2,223 
Operating Revenues — Non-utility operations$14 — 163 1,179 $1,356 — (52)$1,304 
Depreciation and amortization$390 59 15 — $464 — — $464 
Interest expense$143 33 6 3 $185 104 (18)$271 
Interest income$(2)(3)(21)(1)$(27)(17)18 $(26)
Equity earnings of equity method investees$— — 5 — $5 — — $5 
Other segment items (pre-tax)(b)
$1,028 171 141 1,133 $2,473 2 (75)$2,400 
Income Tax Expense (Benefit)$(14)(13)(16)11 $(32)26 — $(6)
Net Income (Loss) Attributable to DTE Energy Company$506 (38)33 33 $534 (115)— $419 
_______________________________________
(a)The Electric segment consists principally of DTE Electric. Refer to the DTE Electric Consolidated Statements of Operations and the DTE Electric Consolidated Statements of Financial Position for the standalone DTE Electric amounts.
(b)Other segment items include Fuel, purchased power, and gas — utility; Fuel, purchased power, gas, and other — non-utility; Operation and maintenance; Taxes other than income; Asset (gains) losses and impairments, net; Non-operating retirement benefits, net; Other income; and Other expenses.
Electric(a)
Gas
DTE
Vantage
Energy
Trading
Total
Reportable
Segments
Corporate
and
Other
Reclassifications
and
Eliminations
Total
(In millions)
Nine months ended September 30, 2026
Operating Revenues — Utility operations$5,549 1,461 — — $7,010 — (73)$6,937 
Operating Revenues — Non-utility operations$73 — 628 4,796 $5,497 — (197)$5,300 
Depreciation and amortization$1,263 176 45 3 $1,487 — — $1,487 
Interest expense$470 105 23 13 $611 362 (62)$911 
Interest income$(10)(6)(76)(5)$(97)(61)62 $(96)
Equity earnings of equity method investees$— 1 11 — $12 — — $12 
Other segment items (pre-tax)(b)
$2,999 956 646 4,793 $9,394 6 (270)$9,130 
Income Tax Expense (Benefit)$(56)53 (117)(2)$(122)(84)— $(206)
Net Income (Loss) Attributable to DTE Energy Company$956 176 96 (6)$1,222 (223)— $999 
Nine months ended September 30, 2025
Operating Revenues — Utility operations$5,173 1,401 — — $6,574 — (65)$6,509 
Operating Revenues — Non-utility operations$23 — 520 4,529 $5,072 — (195)$4,877 
Depreciation and amortization$1,152 168 44 3 $1,367 — — $1,367 
Interest expense$414 97 22 7 $540 297 (60)$777 
Interest income$(6)(9)(62)(6)$(83)(51)60 $(74)
Equity earnings (losses) of equity method investees$— 1 16 — $17 (1)— $16 
Other segment items (pre-tax)(b)
$2,716 918 434 4,413 $8,481 9 (260)$8,230 
Income Tax Expense (Benefit)$(27)52 (37)28 $16 (39)— $(23)
Net Income (Loss) Attributable to DTE Energy Company$947 174 103 84 $1,308 (215)— $1,093 
_______________________________________
(a)The Electric segment consists principally of DTE Electric. Refer to the DTE Electric Consolidated Statements of Operations and the DTE Electric Consolidated Statements of Financial Position for the standalone DTE Electric amounts.
(b)Other segment items include Fuel, purchased power, and gas — utility; Fuel, purchased power, gas, and other — non-utility; Operation and maintenance; Taxes other than income; Asset (gains) losses and impairments, net; Non-operating retirement benefits, net; Other income; and Other expenses.
Other financial data of DTE Energy's business segments follows:
Electric(a)
Gas
DTE
Vantage
Energy
Trading
Total
Reportable
Segments
Corporate
and
Other
Reclassifications
and
Eliminations
Total
(In millions)
September 30, 2026
Investment in equity method investees$4 20 77 — $101 11 — $112 
Capital expenditures and acquisitions$3,486 583 40 3 $4,112 — — $4,112 
Goodwill$1,208 743 25 17 $1,993 — — $1,993 
Total Assets$42,583 9,267 2,729 1,105 $55,684 6,167 (4,257)$57,594 
December 31, 2025
Investment in equity method investees$4 19 77 — $100 22 — $122 
Capital expenditures and acquisitions$3,892 661 80 6 $4,639 — — $4,639 
Goodwill$1,208 743 25 17 $1,993 — — $1,993 
Total Assets$39,370 8,987 2,426 1,313 $52,096 5,145 (3,175)$54,066 
_______________________________________
(a)The Electric segment consists principally of DTE Electric. Refer to the DTE Electric Consolidated Statements of Operations and the DTE Electric Consolidated Statements of Financial Position for the standalone DTE Electric amounts.