Consolidated Statements of Cash Flows - DTE Electric Company - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Activities
Net Income	$ 1,462	$ 1,404	$ 1,397
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	1,841	1,732	1,606
Nuclear fuel amortization	67	55	59
Allowance for equity funds used during construction	(105)	(86)	(42)
Deferred income taxes	358	194	181
Asset (gains) losses and impairments, net	49	28	16
Changes in assets and liabilities:
Accounts receivable, net	(316)	(40)	398
Inventories	(127)	(191)	(110)
Accounts payable	255	45	(306)
Regulatory assets and liabilities	24	586	594
Other current and noncurrent assets and liabilities	(40)	179	(176)
Net cash from operating activities	3,409	3,643	3,220
Investing Activities
Proceeds from sale of nuclear decommissioning trust fund assets	717	555	681
Investment in nuclear decommissioning trust funds	(719)	(559)	(678)
Investment in notes receivable	(600)	(479)	(109)
Principal collections on notes receivable	22	30	23
Other	(134)	(80)	(79)
Net cash used for investing activities	(5,304)	(4,951)	(4,095)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs	4,429	4,533	3,167
Redemption of long-term debt	(1,291)	(2,139)	(1,616)
Short-term borrowings, net	(185)	(216)	121
Dividends paid on common stock	(871)	(810)	(752)
Other	(25)	(23)	(37)
Net cash from financing activities	2,057	1,345	883
Net Increase in Cash, Cash Equivalents, and Restricted Cash	162	37	8
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	88	51	43
Cash, Cash Equivalents, and Restricted Cash at End of Period	250	88	51
Supplemental disclosure of cash information
Interest, net of interest capitalized	978	869	751
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	570	454	490
DTE Electric
Operating Activities
Net Income	1,152	1,072	772
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	1,530	1,432	1,326
Nuclear fuel amortization	67	55	59
Allowance for equity funds used during construction	(103)	(84)	(40)
Deferred income taxes	339	196	82
Asset (gains) losses and impairments, net	46	12	26
Changes in assets and liabilities:
Accounts receivable, net	(64)	33	(14)
Inventories	(62)	(130)	(99)
Prepaid postretirement benefit costs — affiliates	(35)	(50)	(33)
Accounts payable	57	25	(9)
Accrued pension liability — affiliates	(3)	(86)	(53)
Accrued postretirement liability — affiliates	12	(65)	15
Regulatory assets and liabilities	(9)	499	461
Other current and noncurrent assets and liabilities	(208)	(93)	(218)
Net cash from operating activities	2,719	2,816	2,275
Investing Activities
Plant and equipment expenditures	(3,686)	(3,636)	(3,089)
Proceeds from sale of nuclear decommissioning trust fund assets	717	555	681
Investment in nuclear decommissioning trust funds	(719)	(559)	(678)
Investment in notes receivable	(231)	(42)	(20)
Principal collections on notes receivable	1	14	17
Other	(88)	(74)	(44)
Net cash used for investing activities	(4,006)	(3,742)	(3,133)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs	1,694	993	1,881
Redemption of long-term debt	(421)	(164)	(541)
Capital contribution by parent company	954	634	759
Dividends paid on common stock	(846)	(776)	(1,002)
Other	(16)	(15)	(21)
Net cash from financing activities	1,351	953	866
Net Increase in Cash, Cash Equivalents, and Restricted Cash	64	27	8
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	59	32	24
Cash, Cash Equivalents, and Restricted Cash at End of Period	123	59	32
Supplemental disclosure of cash information
Interest, net of interest capitalized	529	467	409
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	484	369	403
DTE Electric | Affiliates
Financing Activities
Short-term borrowings, net	0	0	(27)
DTE Electric | Other
Financing Activities
Short-term borrowings, net	$ (14)	$ 281	$ (183)