Consolidated Statements of Operations - DTE Energy Company - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Revenues
Utility operations	$ 8,849	$ 7,990	$ 7,466
Non-utility operations	6,965	4,467	5,279
Operating Revenues	15,814	12,457	12,745
Operating Expenses
Fuel, purchased power, and gas — utility	2,213	1,978	1,845
Fuel, purchased power, gas, and other — non-utility	6,426	3,879	4,413
Operation and maintenance	2,382	2,262	2,160
Depreciation and amortization	1,841	1,732	1,606
Taxes other than income	529	487	462
Asset (gains) losses and impairments, net	49	28	16
Operating Expenses	13,440	10,366	10,502
Operating Income	2,374	2,091	2,243
Other (Income) and Deductions
Interest expense	1,056	951	791
Interest income	(103)	(136)	(57)
Non-operating retirement benefits, net	0	0	9
Other income	(230)	(167)	(102)
Other expenses	101	73	36
Other (Income) and Deductions	824	721	677
Income Before Income Taxes	1,550	1,370	1,566
Income Tax Expense (Benefit) at Effective Tax Rate	88	(34)	169
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 1,462	$ 1,404	$ 1,397
Basic Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 7.04	$ 6.78	$ 6.77
Diluted Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 7.03	$ 6.77	$ 6.76
Weighted Average Common Shares Outstanding
Basic (in shares)	207	207	206
Diluted (in shares)	207	207	206