DTE Energy (DTE) 10-K 13 Feb 25 2024 FY Annual report Financial data

Cover

Cover - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2024	Jan. 31, 2025	Jun. 30, 2024
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-11607
Entity Registrant Name	DTE Energy Co
Entity Incorporation, State or Country Code	MI
Entity Tax Identification Number	38-3217752
Entity Address, Address Line One	One Energy Plaza
Entity Address, City or Town	Detroit
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48226-1279
City Area Code	313
Local Phone Number	235-4000
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 22.9
Entity Common Stock, Shares Outstanding		207,242,390
Documents Incorporated by Reference	Certain information in DTE Energy's definitive Proxy Statement for its 2025 Annual Meeting of Common Shareholders to be held May 8, 2025, which will be filed with the Securities and Exchange Commission pursuant to Regulation 14A, not later than 120 days after the end of the Registrants' fiscal year covered by this report on Form 10-K, is incorporated herein by reference to Part III (Items 10, 11, 12, 13, and 14) of this Form 10-K. This combined Form 10-K is filed separately by two registrants: DTE Energy and DTE Electric. Information contained herein relating to any individual registrant is filed by such registrant solely on its own behalf. DTE Electric makes no representation as to information relating exclusively to DTE Energy. DTE Electric, an indirect wholly-owned subsidiary of DTE Energy, meets the conditions set forth in General Instructions I(1)(a) and (b) of Form 10-K and is therefore filing this form with the reduced disclosure format specified in General Instruction I(2) of Form 10-K.
Entity Central Index Key	0000936340
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Amendment Flag	false
Common stock, without par value
Entity Information [Line Items]
Title of 12(b) Security	Common stock, without par value
Trading Symbol	DTE
Security Exchange Name	NYSE
2017 Series E 5.25% Junior Subordinated Debentures due 2077
Entity Information [Line Items]
Title of 12(b) Security	2017 Series E 5.25% Junior Subordinated Debentures due 2077
Trading Symbol	DTW
Security Exchange Name	NYSE
2021 Series E 4.375% Junior Subordinated Debentures due 2081
Entity Information [Line Items]
Title of 12(b) Security	2020 Series G 4.375% Junior Subordinated Debentures due 2080
Trading Symbol	DTB
Security Exchange Name	NYSE
2021 Series E 4.375% Junior Subordinated Debentures due 2081
Entity Information [Line Items]
Title of 12(b) Security	2021 Series E 4.375% Junior Subordinated Debentures due 2081
Trading Symbol	DTG
Security Exchange Name	NYSE
DTE Electric
Entity Information [Line Items]
Entity File Number	1-2198
Entity Registrant Name	DTE Electric Co
Entity Incorporation, State or Country Code	MI
Entity Tax Identification Number	38-0478650
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		138,632,324
Entity Central Index Key	0000028385

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2024
Auditor [Line Items]
Auditor Firm ID	238
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Detroit, Michigan
DTE Electric
Auditor [Line Items]
Auditor Firm ID	238
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Detroit, Michigan

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Revenues
Utility operations	$ 7,990	$ 7,466	$ 8,243
Non-utility operations	4,467	5,279	10,985
Operating Revenues	12,457	12,745	19,228
Operating Expenses
Fuel, purchased power, and gas — utility	1,978	1,845	2,505
Fuel, purchased power, gas, and other — non-utility	3,879	4,413	10,655
Operation and maintenance	2,262	2,160	2,400
Depreciation and amortization	1,732	1,606	1,468
Taxes other than income	487	462	457
Asset (gains) losses and impairments, net	28	16	(5)
Operating Expenses	10,366	10,502	17,480
Operating Income	2,091	2,243	1,748
Other (Income) and Deductions
Interest expense	951	791	675
Interest income	(136)	(57)	(46)
Non-operating retirement benefits, net	0	9	(1)
Other income	(167)	(102)	(58)
Other expenses	73	36	66
Other (Income) and Deductions	721	677	636
Income Before Income Taxes	1,370	1,566	1,112
Income Tax Expense (Benefit)	(34)	169	29
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 1,404	$ 1,397	$ 1,083
Basic Earnings per Common Share
Basic Earnings per Common Share (in dollars per share)	$ 6.78	$ 6.77	$ 5.53
Diluted Earnings per Common Share
Diluted Earnings per Common Share (in dollars per share)	$ 6.77	$ 6.76	$ 5.52
Weighted Average Common Shares Outstanding
Basic (in shares)	207	206	195
Diluted (in shares)	207	206	196

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income	$ 1,404	$ 1,397	$ 1,083
Other comprehensive income (loss), net of tax:
Benefit obligations, net of taxes of $—, $2, and $12, respectively	1	6	43
Net unrealized gains (losses) on derivatives, net of taxes of $15, $(4), and $3, respectively	47	(13)	7
Foreign currency translation	(7)	2	0
Other comprehensive income (loss)	41	(5)	50
Comprehensive Income Attributable to DTE Energy Company	$ 1,445	$ 1,392	$ 1,133

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Tax effect on benefit obligation	$ 0	$ 2	$ 12
Tax effect on net unrealized gains (losses) on derivatives	$ 15	$ (4)	$ 3

Consolidated Statements of Fina

Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Current Assets
Cash and cash equivalents	$ 24	$ 26
Restricted cash	64	25
Accounts receivable (less allowance for doubtful accounts)
Customer	1,690	1,632
Other	137	155
Inventories
Fuel and gas	443	421
Materials, supplies, and other	802	633
Derivative assets	162	297
Regulatory assets	50	108
Other	235	242
Total Current Assets	3,607	3,539
Investments
Nuclear decommissioning trust funds	2,256	2,041
Investments in equity method investees	128	166
Other	176	168
Total Investments	2,560	2,375
Property
Property, plant, and equipment	40,840	37,274
Accumulated depreciation and amortization	(9,947)	(9,105)
Property, plant and equipment, net	30,893	28,169
Other Assets
Goodwill	1,993	1,993
Regulatory assets	6,771	6,209
Securitized regulatory assets	690	758
Intangible assets	144	156
Notes receivable	898	420
Derivative assets	85	109
Prepaid postretirement costs	705	633
Operating lease right-of-use assets	188	132
Other	312	262
Total Other Assets	11,786	10,672
Total Assets	48,846	44,755
Current Liabilities
Accounts payable	1,387	1,361
Accrued interest	224	170
Dividends payable	226	210
Short-term borrowings	1,067	1,283
Current portion long-term debt, including securitization bonds and finance leases	1,296	2,142
Derivative liabilities	118	177
Regulatory liabilities	181	71
Operating lease liabilities	21	17
Other	586	452
Total Current Liabilities	5,106	5,883
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	19,153	15,819
Securitization bonds	635	705
Junior subordinated debentures	884	883
Finance lease obligations	18	13
Total Long-Term Debt (net of current portion)	20,690	17,420
Other Liabilities
Deferred income taxes	2,958	2,649
Regulatory liabilities	2,856	2,603
Asset retirement obligations	4,031	3,556
Unamortized investment tax credit	269	181
Derivative liabilities	57	132
Accrued pension liability	214	350
Accrued postretirement liability	233	301
Nuclear decommissioning	353	320
Operating lease liabilities	167	108
Other	208	197
Total Other Liabilities	11,346	10,397
Commitments and Contingencies (Notes 8 and 17)
Equity
Common stock	6,779	6,713
Retained earnings	4,946	4,404
Accumulated other comprehensive loss	(26)	(67)
Total DTE Energy Company/DTE Electric Company Equity	11,699	11,050
Noncontrolling interests	5	5
Total Equity	11,704	11,055
Total Liabilities and Equity	$ 48,846	$ 44,755

Consolidated Statements of Fi_2

Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Current Assets:
Allowance for doubtful accounts	$ 70	$ 63
Stockholders' Equity:
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	207,171,582	206,357,070
Common stock, shares outstanding (in shares)	207,171,582	206,357,070

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Activities
Net Income		$ 1,404	$ 1,397	$ 1,083
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization		1,732	1,606	1,468
Nuclear fuel amortization		55	59	42
Allowance for equity funds used during construction		(86)	(42)	(29)
Deferred income taxes		194	181	44
Equity (earnings) losses of equity method investees		(15)	(3)	14
Dividends from equity method investees		3	3	4
Asset (gains) losses and impairments, net		28	16	(5)
Changes in assets and liabilities:
Accounts receivable, net		(40)	398	(352)
Inventories		(191)	(110)	(98)
Prepaid postretirement benefit costs		(72)	(62)	107
Accounts payable		45	(306)	109
Accrued pension liability		(136)	(28)	39
Accrued postretirement liability		(68)	14	(71)
Derivative assets and liabilities		25	(321)	65
Regulatory assets and liabilities		586	594	(766)
Other current and noncurrent assets and liabilities		179	(176)	323
Net cash from operating activities		3,643	3,220	1,977
Investing Activities
Plant and equipment expenditures — utility		(4,399)	(3,872)	(3,311)
Plant and equipment expenditures — non-utility		(68)	(62)	(67)
Proceeds from sale of assets		46	3	24
Proceeds from sale of nuclear decommissioning trust fund assets		555	681	879
Investment in nuclear decommissioning trust funds		(559)	(678)	(878)
Distributions from equity method investees		30	25	16
Contributions to equity method investees		(27)	(27)	(13)
Notes receivable		(449)	(86)	(30)
Investment in time deposits		(1,050)	0	0
Redemption of time deposits		1,050	0	0
Other		(80)	(79)	(51)
Net cash used for investing activities		(4,951)	(4,095)	(3,431)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs		4,533	3,167	2,171
Redemption of long-term debt		(2,139)	(1,616)	(1,587)
Short-term borrowings, net		(216)	121	404
Issuance of common stock		0	0	1,300
Repurchase of common stock		0	0	(55)
Dividends paid on common stock		(810)	(752)	(685)
Other		(23)	(37)	(86)
Net cash from financing activities		1,345	883	1,462
Net Increase in Cash, Cash Equivalents, and Restricted Cash		37	8	8
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period		51	43	35
Cash, Cash Equivalents, and Restricted Cash at End of Period		88	51	43
Supplemental disclosure of cash information
Cash paid (received) for: Interest, net of interest capitalized		869	751	638
Cash paid (received) for: Income taxes	[1]	(230)	(5)	(3)
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable		$ 454	$ 490	$ 435
[1] 2024 cash received primarily relates to the sale of PTCs and ITCs. See Note 9 to the Consolidated Financial Statements, "Income Taxes," for additional information.

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2021		193,748,000
Beginning balance at Dec. 31, 2021	$ 8,713	$ 5,379	$ 3,438	$ (112)	$ 8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,083		1,083
Dividends declared on common stock	(710)		(710)
Issuance of common stock (in shares)		11,887,000
Issuance of common stock	1,300	$ 1,300
Repurchase of common stock (in shares)		(465,000)
Repurchase of common stock	(55)	$ (55)
Other comprehensive income (loss), net of tax	50			50
Stock-based compensation / contributions from noncontrolling interests, and other (in shares)		462,000
Stock-based compensation and other	20	$ 27	(3)		(4)
Ending balance (in shares) at Dec. 31, 2022		205,632,000
Ending balance at Dec. 31, 2022	10,401	$ 6,651	3,808	(62)	4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,397		1,397
Dividends declared on common stock	(800)		(800)
Issuance of common stock (in shares)		318,000
Issuance of common stock	35	$ 35
Other comprehensive income (loss), net of tax	(5)			(5)
Stock-based compensation / contributions from noncontrolling interests, and other (in shares)		407,000
Stock-based compensation and other	$ 27	$ 27	(1)		1
Ending balance (in shares) at Dec. 31, 2023	206,357,070	206,357,000
Ending balance at Dec. 31, 2023	$ 11,055	$ 6,713	4,404	(67)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,404		1,404
Dividends declared on common stock	(859)		(859)
Issuance of common stock (in shares)		309,000
Issuance of common stock	35	$ 35
Other comprehensive income (loss), net of tax	41			41
Stock-based compensation / contributions from noncontrolling interests, and other (in shares)		506,000
Stock-based compensation and other	$ 28	$ 31	(3)
Ending balance (in shares) at Dec. 31, 2024	207,171,582	207,172,000
Ending balance at Dec. 31, 2024	$ 11,704	$ 6,779	$ 4,946	$ (26)	$ 5

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Stockholders' Equity [Abstract]
Dividends declared on common stock (in dollars per share)	$ 4.15	$ 3.88	$ 3.61

Consolidated Statements of Op_2

Consolidated Statements of Operations - DTE Electric Company - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Revenues — Utility operations	$ 7,990	$ 7,466	$ 8,243
Operating Expenses
Fuel, purchased power, and gas — utility	1,978	1,845	2,505
Taxes other than income	487	462	457
Asset (gains) losses and impairments, net	28	16	(5)
Operating Expenses	10,366	10,502	17,480
Operating Income	2,091	2,243	1,748
Other (Income) and Deductions
Interest expense	951	791	675
Interest income	(136)	(57)	(46)
Non-operating retirement benefits, net	0	9	(1)
Other income	(167)	(102)	(58)
Other expenses	73	36	66
Other (Income) and Deductions	721	677	636
Income Before Income Taxes	1,370	1,566	1,112
Income Tax Expense (Benefit)	(34)	169	29
Net Income Attributable to DTE Energy Company/DTE Electric Company	1,404	1,397	1,083
DTE Electric
Operating Revenues — Utility operations	6,277	5,804	6,397
Operating Expenses
Fuel, purchased power, and gas — utility	1,618	1,492	1,990
Operation and maintenance	1,435	1,421	1,538
Depreciation and amortization	1,432	1,326	1,204
Taxes other than income	352	338	338
Asset (gains) losses and impairments, net	12	26	8
Operating Expenses	4,849	4,603	5,078
Operating Income	1,428	1,201	1,319
Other (Income) and Deductions
Interest expense	495	429	370
Interest income	(7)	(20)	(8)
Non-operating retirement benefits, net	(5)	(4)	(3)
Other income	(144)	(87)	(65)
Other expenses	49	33	44
Other (Income) and Deductions	388	351	338
Income Before Income Taxes	1,040	850	981
Income Tax Expense (Benefit)	(32)	78	26
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 1,072	$ 772	$ 955

Consolidated Statements of Co_3

Consolidated Statements of Comprehensive Income - DTE Electric Company - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net Income	$ 1,404	$ 1,397	$ 1,083
DTE Electric
Net Income	1,072	772	955
Other comprehensive income	0	0	0
Comprehensive Income (Loss) Attributable to DTE Energy Company/DTE Electric Company	$ 1,072	$ 772	$ 955

Consolidated Statements of Fi_3

Consolidated Statements of Financial Position - DTE Electric Company - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Current Assets
Cash and cash equivalents	$ 24	$ 26
Restricted cash	64	25
Accounts receivable (less allowance for doubtful accounts)
Customer	1,690	1,632
Other	137	155
Inventories
Fuel	443	421
Materials and supplies	802	633
Regulatory assets	50	108
Other	235	242
Total Current Assets	3,607	3,539
Investments
Nuclear decommissioning trust funds	2,256	2,041
Other	176	168
Total Investments	2,560	2,375
Property
Property, plant, and equipment	40,840	37,274
Accumulated depreciation and amortization	(9,947)	(9,105)
Property, plant and equipment, net	30,893	28,169
Other Assets
Regulatory assets	6,771	6,209
Securitized regulatory assets	690	758
Operating lease right-of-use assets	188	132
Other	312	262
Total Other Assets	11,786	10,672
Total Assets	48,846	44,755
Accounts payable
Accounts payable	1,387	1,361
Accrued interest	224	170
Current portion long-term debt, including securitization bonds and finance leases	1,296	2,142
Regulatory liabilities	181	71
Short-term borrowings
Short-term borrowings	1,067	1,283
Operating lease liabilities	21	17
Other	586	452
Total Current Liabilities	5,106	5,883
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	19,153	15,819
Securitization bonds	635	705
Finance lease obligations	18	13
Total Long-Term Debt (net of current portion)	20,690	17,420
Other Liabilities
Deferred income taxes	2,958	2,649
Regulatory liabilities	2,856	2,603
Asset retirement obligations	4,031	3,556
Unamortized investment tax credit	269	181
Nuclear decommissioning	353	320
Operating lease liabilities	167	108
Other	208	197
Total Other Liabilities	11,346	10,397
Commitments and Contingencies (Notes 8 and 17)
Shareholder's Equity
Common stock	6,779	6,713
Retained earnings	4,946	4,404
Total DTE Energy Company/DTE Electric Company Equity	11,699	11,050
Total Liabilities and Equity	48,846	44,755
DTE Electric
Current Assets
Cash and cash equivalents	11	15
Restricted cash	48	17
Accounts receivable (less allowance for doubtful accounts)
Other	58	55
Inventories
Fuel	193	191
Materials and supplies	537	409
Notes receivable	42	0
Regulatory assets	39	99
Other	101	114
Total Current Assets	1,769	1,676
Investments
Nuclear decommissioning trust funds	2,256	2,041
Other	67	53
Total Investments	2,323	2,094
Property
Property, plant, and equipment	30,801	27,936
Accumulated depreciation and amortization	(7,404)	(6,570)
Property, plant and equipment, net	23,397	21,366
Other Assets
Regulatory assets	6,187	5,596
Securitized regulatory assets	690	758
Prepaid postretirement costs — affiliates	428	378
Operating lease right-of-use assets	159	101
Other	268	216
Total Other Assets	7,732	7,049
Total Assets	35,221	32,185
Accounts payable
Accrued interest	128	113
Current portion long-term debt, including securitization bonds and finance leases	425	166
Regulatory liabilities	156	49
Short-term borrowings
Short-term borrowings	666	385
Operating lease liabilities	18	15
Other	204	169
Total Current Liabilities	2,342	1,651
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	10,825	10,174
Securitization bonds	635	705
Finance lease obligations	8	4
Total Long-Term Debt (net of current portion)	11,468	10,883
Other Liabilities
Deferred income taxes	3,393	3,109
Regulatory liabilities	1,753	1,710
Asset retirement obligations	3,791	3,326
Unamortized investment tax credit	269	181
Nuclear decommissioning	353	320
Accrued pension liability — affiliates	248	334
Accrued postretirement liability — affiliates	225	290
Operating lease liabilities	142	81
Other	83	76
Total Other Liabilities	10,257	9,427
Commitments and Contingencies (Notes 8 and 17)
Shareholder's Equity
Common stock	7,995	7,361
Retained earnings	3,159	2,863
Total DTE Energy Company/DTE Electric Company Equity	11,154	10,224
Total Liabilities and Equity	35,221	32,185
DTE Electric | Customer/ Other
Accounts receivable (less allowance for doubtful accounts)
Customer	734	764
Accounts payable
Accounts payable	681	696
DTE Electric | Affiliates
Accounts receivable (less allowance for doubtful accounts)
Customer	6	12
Accounts payable
Accounts payable	$ 64	$ 58

Consolidated Statements of Fi_4

Consolidated Statements of Financial Position - DTE Electric Company (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Current Assets:
Allowance for doubtful accounts	$ 70	$ 63
Stockholders' Equity:
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	207,171,582	206,357,070
Common stock, shares outstanding (in shares)	207,171,582	206,357,070
DTE Electric
Current Assets:
Allowance for doubtful accounts	$ 46	$ 41
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 10	$ 10
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	138,632,324	138,632,324
Common stock, shares outstanding (in shares)	138,632,324	138,632,324

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows - DTE Electric Company - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Activities
Net Income		$ 1,404	$ 1,397	$ 1,083
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization		1,732	1,606	1,468
Nuclear fuel amortization		55	59	42
Allowance for equity funds used during construction		(86)	(42)	(29)
Deferred income taxes		194	181	44
Asset (gains) losses and impairments, net		28	16	(5)
Changes in assets and liabilities:
Accounts receivable, net		(40)	398	(352)
Inventories		(191)	(110)	(98)
Accounts payable		45	(306)	109
Regulatory assets and liabilities		586	594	(766)
Other current and noncurrent assets and liabilities		179	(176)	323
Net cash from operating activities		3,643	3,220	1,977
Investing Activities
Proceeds from Sale and Maturity of Other Investments		555	681	879
Investment in nuclear decommissioning trust funds		(559)	(678)	(878)
Net cash used for investing activities		(4,951)	(4,095)	(3,431)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs		4,533	3,167	2,171
Redemption of long-term debt		(2,139)	(1,616)	(1,587)
Short-term borrowings, net — affiliates		(216)	121	404
Dividends paid on common stock		(810)	(752)	(685)
Other		(23)	(37)	(86)
Net cash from financing activities		1,345	883	1,462
Net Increase in Cash, Cash Equivalents, and Restricted Cash		37	8	8
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period		51	43	35
Cash, Cash Equivalents, and Restricted Cash at End of Period		88	51	43
Supplemental disclosure of cash information
Cash paid (received) for: Interest, net of interest capitalized		869	751	638
Cash paid (received) for: Income taxes	[1]	(230)	(5)	(3)
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable		454	490	435
DTE Electric
Operating Activities
Net Income		1,072	772	955
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization		1,432	1,326	1,204
Nuclear fuel amortization		55	59	42
Allowance for equity funds used during construction		(84)	(40)	(26)
Deferred income taxes		196	82	25
Asset (gains) losses and impairments, net		12	26	8
Changes in assets and liabilities:
Accounts receivable, net		33	(14)	(40)
Inventories		(130)	(99)	(26)
Prepaid postretirement benefit costs — affiliates		(50)	(33)	57
Accounts payable		25	(9)	23
Accrued pension liability — affiliates		(86)	(53)	(18)
Accrued postretirement liability — affiliates		(65)	15	(65)
Regulatory assets and liabilities		499	461	(653)
Other current and noncurrent assets and liabilities		(93)	(218)	204
Net cash from operating activities		2,816	2,275	1,690
Investing Activities
Plant and equipment expenditures		(3,636)	(3,089)	(2,626)
Proceeds from Sale and Maturity of Other Investments		555	681	879
Investment in nuclear decommissioning trust funds		(559)	(678)	(878)
Notes receivable and other		(102)	(47)	(40)
Net cash used for investing activities		(3,742)	(3,133)	(2,665)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs		993	1,881	1,118
Redemption of long-term debt		(164)	(541)	(337)
Capital contribution by parent company		634	759	600
Dividends paid on common stock		(776)	(1,002)	(763)
Other		(15)	(21)	(17)
Net cash from financing activities		953	866	990
Net Increase in Cash, Cash Equivalents, and Restricted Cash		27	8	15
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period		32	24	9
Cash, Cash Equivalents, and Restricted Cash at End of Period		59	32	24
Supplemental disclosure of cash information
Cash paid (received) for: Interest, net of interest capitalized		467	409	350
Cash paid (received) for: Income taxes	[2]	(231)	15	(33)
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable		369	403	335
DTE Electric | Affiliates
Financing Activities
Short-term borrowings, net — affiliates		0	(27)	(26)
DTE Electric | Customer/ Other
Financing Activities
Short-term borrowings, net — affiliates		$ 281	$ (183)	$ 415
[1] 2024 cash received primarily relates to the sale of PTCs and ITCs. See Note 9 to the Consolidated Financial Statements, "Income Taxes," for additional information. 2024 cash received primarily relates to the sale of PTCs and ITCs. See Note 9 to the Consolidated Financial Statements, "Income Taxes," for additional information.

Consolidated Statements of Ch_3

Consolidated Statements of Changes in Shareholder's Equity - DTE Electric Company - USD ($) $ in Millions	Total	Common Stock	Retained Earnings	DTE Electric	DTE Electric Common Stock	DTE Electric Additional Paid-in Capital	DTE Electric Retained Earnings
Beginning balance (in shares) at Dec. 31, 2021		193,748,000			138,632,000
Beginning balance at Dec. 31, 2021				$ 8,903	$ 1,386	$ 4,616	$ 2,901
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 1,083			955			955
Dividends declared on common stock	(710)		$ (710)	(763)			(763)
Capital contribution by parent company				600		600
Ending balance (in shares) at Dec. 31, 2022		205,632,000			138,632,000
Ending balance at Dec. 31, 2022				9,695	$ 1,386	5,216	3,093
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,397			772			772
Dividends declared on common stock	$ (800)		(800)	(1,002)			(1,002)
Capital contribution by parent company				$ 759		759
Ending balance (in shares) at Dec. 31, 2023	206,357,070	206,357,000		138,632,324	138,632,000
Ending balance at Dec. 31, 2023	$ 11,050			$ 10,224	$ 1,386	5,975	2,863
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,404			1,072			1,072
Dividends declared on common stock	$ (859)		$ (859)	(776)			(776)
Capital contribution by parent company				$ 634		634
Ending balance (in shares) at Dec. 31, 2024	207,171,582	207,172,000		138,632,324	138,632,000
Ending balance at Dec. 31, 2024	$ 11,699			$ 11,154	$ 1,386	$ 6,609	$ 3,159

Organization and Basis of Prese

Organization and Basis of Presentation	12 Months Ended
	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	ORGANIZATION AND BASIS OF PRESENTATION Corporate Structure DTE Energy owns the following businesses: • DTE Electric is a public utility engaged in the generation, purchase, distribution, and sale of electricity to approximately 2.3 million customers in southeastern Michigan; • DTE Gas is a public utility engaged in the purchase, storage, transportation, distribution, and sale of natural gas to approximately 1.3 million customers throughout Michigan and the sale of storage and transportation capacity; and • Other businesses include 1) DTE Vantage, which is primarily involved in renewable natural gas projects and providing custom energy solutions to industrial, commercial, and institutional customers, and 2) energy marketing and trading operations. DTE Electric and DTE Gas are regulated by the MPSC. Certain activities of DTE Electric and DTE Gas, as well as various other aspects of businesses under DTE Energy, are regulated by the FERC. In addition, the Registrants are regulated by other federal and state regulatory agencies including the NRC, the EPA, EGLE, and for DTE Energy, the CFTC and CARB. Basis of Presentation The accompanying Consolidated Financial Statements of the Registrants are prepared using accounting principles generally accepted in the United States of America. These accounting principles require management to use estimates and assumptions that impact reported amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities. Actual results may differ from the Registrants' estimates. The information in these combined notes relates to each of the Registrants as noted in the Index of Combined Notes to Consolidated Financial Statements. However, DTE Electric does not make any representation as to information related solely to DTE Energy or the subsidiaries of DTE Energy other than itself. Certain prior year balances for the Registrants were reclassified to match the current year's Consolidated Financial Statements presentation. Principles of Consolidation The Registrants consolidate all majority-owned subsidiaries and investments in entities in which they have controlling influence. Non-majority owned investments are accounted for using the equity method when the Registrants are able to significantly influence the operating policies of the investee. When the Registrants do not influence the operating policies of an investee, the equity investment is valued at cost minus any impairments, if applicable. These Consolidated Financial Statements also reflect the Registrants' proportionate interests in certain jointly-owned utility plants. The Registrants eliminate all intercompany balances and transactions. The Registrants evaluate whether an entity is a VIE whenever reconsideration events occur. The Registrants consolidate VIEs for which they are the primary beneficiary. If a Registrant is not the primary beneficiary and an ownership interest is held, the VIE is accounted for under the equity method of accounting. When assessing the determination of the primary beneficiary, a Registrant considers all relevant facts and circumstances, including: the power, through voting or similar rights, to direct the activities of the VIE that most significantly impact the VIE's economic performance and the obligation to absorb the expected losses and/or the right to receive the expected returns of the VIE. The Registrants perform ongoing reassessments of all VIEs to determine if the primary beneficiary status has changed. Legal entities within the DTE Vantage segment enter into long-term contractual arrangements with customers to supply energy-related products or services. The entities are generally designed to pass-through the commodity risk associated with these contracts to the customers, with DTE Energy retaining operational and customer default risk. These entities generally are VIEs and consolidated when DTE Energy is the primary beneficiary. In addition, DTE Energy has interests in certain VIEs through which control of all significant activities is shared with partners, and therefore are generally accounted for under the equity method. The Registrants hold ownership interests in certain limited partnerships. The limited partnerships include investment funds which support regional development and economic growth, and an operational business providing energy-related products. These entities are generally VIEs as a result of certain characteristics of the limited partnership voting rights. The ownership interests are accounted for under the equity method as the Registrants are not the primary beneficiaries. DTE Energy has variable interests in VIEs through certain of its long-term purchase and sale contracts. DTE Electric has variable interests in VIEs through certain of its long-term purchase contracts. As of December 31, 2024, the carrying amount of assets and liabilities in DTE Energy's Consolidated Statements of Financial Position that relate to its variable interests under long-term purchase and sale contracts are predominantly related to working capital accounts and generally represent the amounts owed by or to DTE Energy for the deliveries associated with the current billing cycle under the contracts. As of December 31, 2024, the carrying amount of assets and liabilities in DTE Electric's Consolidated Statements of Financial Position that relate to its variable interests under long-term purchase contracts are predominantly related to working capital accounts and generally represent the amounts owed by DTE Electric for the deliveries associated with the current billing cycle under the contracts. The Registrants have not provided any significant form of financial support associated with these long-term contracts. There is no material potential exposure to loss as a result of DTE Energy's variable interests through these long-term purchase and sale contracts. In addition, there is no material potential exposure to loss as a result of DTE Electric's variable interests through these long-term purchase contracts. DTE Electric previously financed regulatory assets for deferred costs related to certain retired generation plants and its tree trimming surge program through the sale of bonds by wholly-owned special purpose entities, DTE Securitization I and DTE Securitization II (collectively "the DTE Securitization entities"). The DTE Securitization entities are VIEs. DTE Electric has the power to direct the most significant activities of these entities, including performing servicing activities such as billing and collecting surcharge revenue. Accordingly, DTE Electric is the primary beneficiary and the DTE Securitization entities are consolidated by the Registrants. Securitization bond holders have no recourse to the Registrants' assets, except for those held by the DTE Securitization entities. Surcharges collected by DTE Electric to pay for bond servicing and other qualified costs reflect securitization property solely owned by the DTE Securitization entities. These surcharges are remitted to a trustee and are not available to other creditors of the Registrants. The maximum risk exposure for consolidated VIEs is reflected on the Registrants' Consolidated Statements of Financial Position. For non-consolidated VIEs, the maximum risk exposure of the Registrants is generally limited to their investment and notes receivable. The table below summarizes the major Consolidated Statements of Financial Position items for consolidated VIEs as of December 31, 2024 and 2023. All assets and liabilities of a consolidated VIE are presented where it has been determined that a consolidated VIE has either (1) assets that can be used only to settle obligations of the VIE or (2) liabilities for which creditors do not have recourse to the general credit of the primary beneficiary. Assets and liabilities of the DTE Securitization entities have been aggregated due to their similar nature and are separately stated in the table below, comprising the entirety of the DTE Electric amounts. For all other VIEs, assets and liabilities are also aggregated due to their similar nature and presented together with the DTE Securitization entities in the DTE Energy amounts below. VIEs, in which DTE Energy holds a majority voting interest and is the primary beneficiary, that meet the definition of a business and whose assets can be used for purposes other than the settlement of the VIE's obligations have been excluded from the table. Amounts for the Registrants' consolidated VIEs are as follows: December 31, 2024 2023 DTE Energy DTE Electric DTE Energy DTE Electric (In millions) ASSETS Cash and cash equivalents $ 6 $ — $ 7 $ — Restricted cash 64 48 25 17 Accounts receivable 27 6 85 6 Securitized regulatory assets 690 690 758 758 Notes receivable (a) 657 — 183 — Other current and long-term assets 1 — 4 1 $ 1,445 $ 744 $ 1,062 $ 782 LIABILITIES Accounts payable $ 26 — $ 59 $ — Accrued interest 12 12 6 6 Regulatory liabilities — current 27 27 8 8 Securitization bonds (b) 706 706 769 769 Other current and long-term liabilities 20 — 12 — $ 791 $ 745 $ 854 $ 783 _______________________________________ (a) At December 31, 2024, Notes Receivable includes $14 million reported in Current Assets — Other on DTE Energy's Consolidated Statements of Financial Position. (b) Includes $71 million and $64 million reported in Current portion of long-term debt on the Registrants' Consolidated Statements of Financial Position for the periods ended December 31, 2024 and December 31, 2023, respectively. Amounts for DTE Energy's non-consolidated VIEs are as follows: December 31, 2024 2023 (In millions) Investments in equity method investees $ 65 $ 112 Notes receivable $ — $ 15 Equity Method Investments Investments in non-consolidated affiliates that are not controlled by the Registrants, but over which they have significant influence, are accounted for using the equity method. Certain of the equity method investees are also considered VIEs and disclosed in the non-consolidated VIEs table above. At December 31, 2024 and 2023, DTE Energy's Investments in equity method investees were $128 million and $166 million, respectively. The balances are primarily comprised of investments in the DTE Vantage segment and Corporate and Other, of which no investment is individually significant. DTE Vantage investments include projects that deliver energy and utility-type products and services to industrial customers, sell electricity and gas from renewable energy projects, and produce and sell metallurgical coke. Corporate and Other holds various ownership interests in limited partnerships that include investment funds supporting regional development and economic growth. For further information by segment, see Note 21 to the Consolidated Financial Statements, "Segment and Related Information." At December 31, 2024 and 2023, DTE Energy's share of the underlying equity in the net assets of the investees exceeded the carrying amounts of Investments in equity method investees by $94 million and $101 million, respectively. The difference is being amortized over the life of the underlying assets.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Significant Accounting Policies	SIGNIFICANT ACCOUNTING POLICIES Other Income Other income for the Registrants is recognized for non-operating income such as equity earnings of equity method investees, allowance for equity funds used during construction, contract services, and certain investment income, primarily from trading securities held in DTE Energy's rabbi trust. The following is a summary of DTE Energy's Other income: 2024 2023 2022 (In millions) Allowance for equity funds used during construction $ 86 $ 42 $ 29 Contract services 34 26 28 Investment income (a) 17 17 3 Equity earnings (losses) of equity method investees 15 3 (14) Other 15 14 12 $ 167 $ 102 $ 58 _______________________________________ (a) Investment losses are recorded separately to Other expenses on the Consolidated Statements of Operations. The following is a summary of DTE Electric's Other income: 2024 2023 2022 (In millions) Allowance for equity funds used during construction $ 84 $ 40 $ 26 Contract services 33 25 27 Investment income (a) 13 11 3 Other 14 11 9 $ 144 $ 87 $ 65 _______________________________________ (a) Investment losses are recorded separately to Other expenses on the Consolidated Statements of Operations. For information on equity earnings of equity method investees by segment, see Note 21 to the Consolidated Financial Statements, "Segment and Related Information." Accounting for ISO Transactions DTE Electric participates in the energy market through MISO. MISO requires that DTE Electric submit hourly day-ahead, real-time, and FTR bids and offers for energy at locations across the MISO region. DTE Electric accounts for MISO transactions on a net hourly basis in each of the day-ahead, real-time, and FTR markets. In any single hour, transactions in each of the MISO energy markets are netted based on MWh to determine if DTE Electric is in a net sale or purchase position. Net purchases are recorded in Fuel, purchased power, and gas — utility and net sales are recorded in Operating Revenues — Utility operations on the Registrants' Consolidated Statements of Operations. The Energy Trading segment participates in the energy markets through various ISOs and RTOs. These markets require that Energy Trading submits hourly day-ahead, real-time bids and offers for energy at locations across each region. Energy Trading submits bids in the annual and monthly auction revenue rights and FTR auctions to the RTOs. Energy Trading accounts for these transactions on a net hourly basis for the day-ahead, real-time, and FTR markets. These transactions are related to trading contracts which, if derivatives, are presented on a net basis in Operating Revenues — Non-utility operations, and if non-derivatives, the realized gains and losses for sales are recorded in Operating Revenues — Non-utility operations and purchases are recorded in Fuel, purchased power, gas, and other — non-utility in the DTE Energy Consolidated Statements of Operations. DTE Electric and Energy Trading record accruals for future net purchase adjustments based on historical experience and reconcile accruals to actual costs when invoices are received from MISO and other ISOs and RTOs. Derivatives Energy Trading classifies derivative transactions as revenue or expense based on the intent of the transaction (buy or sell). Revenues are recorded on a gross or net basis within the income statement depending upon whether it represents a non-trading activity or trading activity, respectively. Cash flows associated with derivative instruments, including related gains and losses, are presented as Operating Activities within the Registrants' Consolidated Statements of Cash Flows. For additional information, refer to Note 12 to the Consolidated Financial Statements, "Financial and Other Derivative Instruments." Changes in Accumulated Other Comprehensive Income (Loss) Comprehensive income (loss) is the change in common shareholders’ equity during a period from transactions and events from non-owner sources, including Net Income. The amounts recorded to Accumulated other comprehensive income (loss) for DTE Energy include changes in benefit obligations, consisting of deferred actuarial losses and prior service costs, unrealized gains and losses from derivatives accounted for as cash flow hedges, and foreign currency translation adjustments, if any. DTE Energy releases income tax effects from accumulated other comprehensive income when the circumstances upon which they are premised cease to exist. Changes in Accumulated other comprehensive income (loss) are presented in DTE Energy's Consolidated Statements of Changes in Equity and DTE Electric's Consolidated Statements of Changes in Shareholder's Equity, if any. For the years ended December 31, 2024 and 2023, reclassifications out of Accumulated other comprehensive income (loss) were not material. The following table summarizes the changes in DTE Energy's Accumulated other comprehensive income (loss) by component (a) for the years ended December 31, 2024 and 2023: Net Unrealized Gain (Loss) on Derivatives Benefit Obligations (b) Foreign Currency Translation Total (In millions) Balance, December 31, 2022 $ (4) $ (58) $ — $ (62) Other comprehensive income (loss) before reclassifications (14) 3 2 (9) Amounts reclassified from Accumulated other comprehensive loss 1 3 — 4 Net current period Other comprehensive income (loss) (13) 6 2 (5) Balance, December 31, 2023 $ (17) $ (52) $ 2 $ (67) Other comprehensive income (loss) before reclassifications 47 (3) (7) 37 Amounts reclassified from Accumulated other comprehensive loss — 4 — 4 Net current period Other comprehensive income (loss) 47 1 (7) 41 Balance, December 31, 2024 $ 30 $ (51) $ (5) $ (26) ______________________________________ (a) All amounts are net of tax, except for foreign currency translation. (b) Benefit obligations activity includes changes in actuarial (gain) loss and prior service cost in DTE Energy's pension and other postretirement benefit plans. Refer to Note 19 to the Consolidated Financial Statements, "Retirement Benefits and Trusteed Assets," for details regarding this activity. Cash, Cash Equivalents, and Restricted Cash Cash and cash equivalents include cash on hand, cash in banks, and temporary investments purchased with maturities of three months or less. Restricted cash includes funds held in separate bank accounts and principally consists of amounts at DTE Securitization I and DTE Securitization II to pay for debt service and other qualified costs. Restricted cash also consists of funds held to satisfy contractual obligations related to a large construction project at DTE Vantage. Restricted cash designated for payments within one year is classified as a Current Asset. Financing Receivables Financing receivables are primarily composed of trade receivables, notes receivable, and unbilled revenue. The Registrants' financing receivables are stated at net realizable value. DTE Energy had unbilled revenues of $992 million and $882 million at December 31, 2024 and 2023, respectively, including $303 million and $311 million of DTE Electric unbilled revenues, respectively, included in Customer Accounts receivable. The Registrants monitor the credit quality of their financing receivables on a regular basis by reviewing credit quality indicators and monitoring for trigger events, such as a credit rating downgrade or bankruptcy. Credit quality indicators include, but are not limited to, ratings by credit agencies where available, collection history, collateral, counterparty financial statements and other internal metrics. Utilizing such data, the Registrants have determined three internal grades of credit quality. Internal grade 1 includes financing receivables for counterparties where credit rating agencies have ranked the counterparty as investment grade. To the extent credit ratings are not available, the Registrants utilize other credit quality indicators to determine the level of risk associated with the financing receivable. Internal grade 1 may include financing receivables for counterparties for which credit rating agencies have ranked the counterparty as below investment grade; however, due to favorable information on other credit quality indicators, the Registrants have determined the risk level to be similar to that of an investment grade counterparty. Internal grade 2 includes financing receivables for counterparties with limited credit information and those with a higher risk profile based upon credit quality indicators. Internal grade 3 reflects financing receivables for which the counterparties have the greatest level of risk, including those in bankruptcy status. The following represents the Registrants' financing receivables by year of origination, classified by internal grade of credit risk, including current year-to-date gross write-offs, if any. The related credit quality indicators and risk ratings utilized to develop the internal grades have been updated through December 31, 2024. DTE Energy DTE Electric Year of origination 2024 2023 2022 and prior Total 2024 and prior (In millions) Notes receivable Internal grade 1 (a) $ — $ 1 $ 4 $ 5 $ 43 Internal grade 2 622 6 253 881 1 Total notes receivable (b) $ 622 $ 7 $ 257 $ 886 $ 44 Net investment in leases Internal grade 1 $ — $ — $ 36 $ 36 $ — Internal grade 2 4 — — 4 — Total net investment in leases (b) $ 4 $ — $ 36 $ 40 $ — _______________________________________ (a) For DTE Electric, includes Notes receivable — Affiliates balance of $42 million originated in 2024 that eliminates in consolidation for DTE Energy. Remaining balance for DTE Electric originated in 2023. (b) For DTE Energy, the current portion is included in Current Assets — Other on the Consolidated Statements of Financial Position. For DTE Electric, the amounts are included in Other Assets — Other on the Consolidated Statements of Financial Position. The allowance for doubtful accounts on accounts receivable for the utility entities is generally calculated using an aging approach that utilizes rates developed in reserve studies. DTE Electric and DTE Gas establish an allowance for uncollectible accounts based on historical losses and management's assessment of existing and future economic conditions, customer trends and other factors. Customer accounts are generally considered delinquent if the amount billed is not received by the due date, which is typically in 21 days, however, factors such as assistance programs may delay aggressive action. DTE Electric and DTE Gas generally assess late payment fees on trade receivables based on past-due terms with customers. Customer accounts are written off when collection efforts have been exhausted. The time period for write-off is 150 days after service has been terminated. The customer allowance for doubtful accounts for non-utility businesses and other receivables for both utility and non-utility businesses is generally calculated based on specific review of probable future collections based on receivable balances generally in excess of 30 days. Existing and future economic conditions, customer trends and other factors are also considered. Receivables are written off on a specific identification basis and determined based upon the specific circumstances of the associated receivable. Notes receivable for DTE Energy are primarily comprised of finance lease receivables and loans that are included in Notes Receivable and Other current assets on DTE Energy's Consolidated Statements of Financial Position. Notes receivable for DTE Electric are primarily comprised of loans. The Registrants establish an allowance for credit loss for principal and interest amounts due that are estimated to be uncollectible in accordance with the contractual terms of the note receivable. In determining the allowance for credit losses for notes receivable, the Registrants consider the historical payment experience and other factors that are expected to have a specific impact on the counterparty's ability to pay including existing and future economic conditions. Notes receivable are typically considered delinquent when payment is not received for periods ranging from 60 to 120 days. If amounts are no longer probable of collection, the Registrants may consider the note receivable impaired, adjust the allowance, and cease accruing interest (nonaccrual status). Cash payments received on nonaccrual status notes receivable, that do not bring the account contractually current, are first applied to the contractually owed past due interest, with any remainder applied to principal. Accrual of interest is generally resumed when the note receivable becomes contractually current. The following tables present a roll-forward of the activity for the Registrants' financing receivables credit loss reserves: DTE Energy DTE Electric Trade accounts receivable Other receivables Total Trade and other accounts receivable (In millions) Balance at December 31, 2021 $ 89 $ 3 $ 92 $ 54 Current period provision 49 — 49 33 Write-offs charged against allowance (105) (2) (107) (66) Recoveries of amounts previously written off 45 — 45 28 Balance at December 31, 2022 $ 78 $ 1 $ 79 $ 49 Current period provision 52 — 52 36 Write-offs charged against allowance (112) — (112) (72) Recoveries of amounts previously written off 44 — 44 28 Balance at December 31, 2023 $ 62 $ 1 $ 63 $ 41 Current period provision 74 2 76 49 Write-offs charged against allowance (108) — (108) (70) Recoveries of amounts previously written off 41 — 41 26 Balance at December 31, 2024 $ 69 $ 3 $ 72 $ 46 Uncollectible expense for the Registrants is primarily comprised of the current period provision for allowance for doubtful accounts and is summarized as follows: Year Ended December 31, 2024 2023 2022 (In millions) DTE Energy $ 74 $ 55 $ 55 DTE Electric $ 50 $ 38 $ 35 There are no material amounts of past due financing receivables for the Registrants as of December 31, 2024. Inventories Inventory related to utility and non-utility operations is valued at the lower of cost or net realizable value, where cost is generally valued using average cost. Inventory primarily includes fuel, gas, materials, and supplies. Other inventories include RECs, emission allowances, and other environmental products in the Energy Trading segment. DTE Gas' natural gas inventory includes $69 million and $73 million as of December 31, 2024 and 2023, respectively, that is determined using the last-in, first-out (LIFO) method. The replacement cost of gas in inventory exceeded the LIFO cost by $81 million and $50 million at December 31, 2024 and 2023, respectively. Property, Retirement and Maintenance, and Depreciation and Amortization Property is stated at cost and includes construction-related labor, materials, overheads, and AFUDC for utility property. The cost of utility properties retired is charged to accumulated depreciation. Expenditures for maintenance and repairs are charged to expense when incurred. Utility property at DTE Electric and DTE Gas is depreciated over its estimated useful life using straight-line rates approved by the MPSC. DTE Energy's non-utility property is depreciated over its estimated useful life using the straight-line method. Depreciation and amortization expense also includes the amortization of certain regulatory assets and liabilities for the Registrants. The cost of nuclear fuel is capitalized. The amortization of nuclear fuel is included within Fuel, purchased power, and gas — utility in the DTE Energy Consolidated Statements of Operations, and Fuel and purchased power in the DTE Electric Consolidated Statements of Operations, and is recorded using the units-of-production method. See Note 5 to the Consolidated Financial Statements, "Property, Plant, and Equipment." Long-Lived Assets Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. If the carrying amount of the asset exceeds the expected undiscounted future cash flows generated by the asset, an impairment loss is recognized resulting in the asset being written down to its estimated fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less costs to sell. Goodwill DTE Energy has goodwill resulting from business combinations. For each reporting unit, DTE Energy performs an impairment test annually or whenever events or circumstances indicate that the value of goodwill may be impaired. For the years ended December 31, 2024 and 2023, there were no impairments resulting from these tests and there were no other changes in the carrying amount of goodwill. Intangible Assets The Registrants have certain Intangible assets as shown below: December 31, 2024 December 31, 2023 Useful Lives Gross Carrying Value Accumulated Amortization Net Carrying Value Gross Carrying Value Accumulated Amortization Net Carrying Value (In millions) Intangible assets subject to amortization Contract intangibles 12 to 26 years $ 246 $ (119) $ 127 $ 246 $ (103) $ 143 Carbon offsets 14 — 14 10 — 10 Renewable energy credits 1 — 1 2 — 2 Other 2 — 2 1 — 1 Intangible assets not subject to amortization (a) 17 — 17 13 — 13 DTE Energy Long-term intangible assets $ 263 $ (119) $ 144 $ 259 $ (103) $ 156 ______________________________________ (a) Amounts are charged to expense, using average cost, as they are consumed in the operation of the business. DTE Electric intangible assets include the Renewable energy credits above, which are included in Other Assets — Other on the DTE Electric Consolidated Statements of Financial Position. The following table summarizes DTE Energy's estimated contract intangible amortization expense expected to be recognized during each year through 2029: 2025 2026 2027 2028 2029 (In millions) Estimated amortization expense $ 15 $ 15 $ 15 $ 14 $ 14 DTE Energy amortizes contract intangible assets on a straight-line basis over the expected period of benefit. DTE Energy's Intangible assets amortization expense was $16 million, $15 million, and $16 million in 2024, 2023, and 2022, respectively. Cloud Computing Arrangements The Registrants capitalize implementation costs incurred in a cloud computing arrangement that is a service contract consistent with capitalized implementation costs incurred to develop or obtain internal-use software. Capitalized costs are recorded in Other noncurrent assets on the Consolidated Statements of Financial Position and amortization of the costs is reflected in Operation and maintenance within the Consolidated Statements of Operations. Costs are amortized on a straight-line basis over the life of the contract. Contracts primarily involve the implementation or upgrade of cloud-based solutions for generation and distribution operations and customer service support. The following balances for cloud computing costs relate to DTE Energy: Year Ended December 31, 2024 2023 2022 (In millions) Amortization expense of capitalized cloud computing costs $ 12 $ 10 $ 4 Gross value of capitalized cloud computing costs $ 64 $ 56 Accumulated amortization of capitalized cloud computing costs $ 27 $ 15 The following balances for cloud computing costs relate to DTE Electric: Year Ended December 31, 2024 2023 2022 (In millions) Amortization expense of capitalized cloud computing costs $ 10 $ 8 $ 3 Gross value of capitalized cloud computing costs $ 51 $ 44 Accumulated amortization of capitalized cloud computing costs $ 22 $ 12 Excise and Sales Taxes The Registrants record the billing of excise and sales taxes as a receivable with an offsetting payable to the applicable taxing authority, with no net impact on the Registrants’ Consolidated Statements of Operations. Deferred Debt Costs The costs related to the issuance of long-term debt are deferred and amortized over the life of each debt issue. The deferred amounts are included as a direct deduction from the carrying amount of each debt issue in Mortgage bonds, notes, and other and Securitization bonds on the Registrants' Consolidated Statements of Financial Position and in Junior subordinated debentures on DTE Energy's Consolidated Statements of Financial Position. In accordance with MPSC regulations applicable to DTE Energy’s electric and gas utilities, the unamortized discount, premium, and expense related to utility debt redeemed with a refinancing are amortized over the life of the replacement issue. Discounts, premiums, and expense on early redemptions of debt associated with DTE Energy's non-utility operations are charged to earnings. Investments in Debt and Equity Securities The Registrants generally record investments in debt and equity securities at market value with unrealized gains or losses included in earnings. Changes in the fair value of Fermi 2 nuclear decommissioning investments are recorded as adjustments to Regulatory assets or liabilities, due to a recovery mechanism from customers. The Registrants' equity investments are reviewed for impairment each reporting period. If the assessment indicates that an impairment exists, a loss is recognized resulting in the equity investment being written down to its estimated fair value. See Note 11 of the Consolidated Financial Statements, "Fair Value." DTE Energy Foundation DTE Energy made a charitable contribution to the DTE Energy Foundation of $10 million for the year ended December 31, 2024. There were no contributions for the years ended December 31, 2023 and 2022. The DTE Energy Foundation is a non-consolidated not-for-profit private foundation, the purpose of which is to contribute to and assist charitable organizations. Other Accounting Policies See the following notes for other accounting policies impacting the Registrants’ Consolidated Financial Statements: Note Title 4 Revenue 5 Property, Plant, and Equipment 7 Asset Retirement Obligations 8 Regulatory Matters 9 Income Taxes 11 Fair Value 12 Financial and Other Derivative Instruments 16 Leases 19 Retirement Benefits and Trusteed Assets 20 Stock-Based Compensation 21 Segment and Related Information 22 Related Party Transactions

New Accounting Pronouncements

New Accounting Pronouncements	12 Months Ended
	Dec. 31, 2024
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements	NEW ACCOUNTING PRONOUNCEMENTS Recently Adopted Pronouncements In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures . The amendments in this update require disclosure of incremental segment information and the title and position of the chief operating decision maker ("CODM"). Registrants are required to disclose significant segment expenses that are regularly provided to the CODM, as well as additional information on segment profit and loss measures and how such information is used by the CODM to assess segment performance and allocate resources. The Registrants adopted the ASU for the fiscal year ended December 31, 2024, and will adopt for interim periods beginning January 1, 2025, on a retrospective basis. The Reportable Segments disclosures have been updated to reflect these requirements. Refer to Note 21 to the Consolidated Financial Statements, "Segment and Related Information." Recently Issued Pronouncements In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures . The amendments in this update require enhanced income tax disclosures, particularly related to a reporting entity's effective tax rate reconciliation and income taxes paid. For the rate reconciliation table, the update requires additional categories of information about federal, state, and foreign taxes and details about significant reconciling items, subject to a quantitative threshold. Income taxes paid must be similarly disaggregated by federal, state, and foreign based on a quantitative threshold. The ASU is effective for the Registrants for annual periods beginning after December 15, 2024. The guidance shall be applied on a prospective basis with the option to apply retrospectively. Early adoption is permitted. The Registrants will apply the guidance upon the effective date. In November 2024, the FASB issued ASU No. 2024-03, Income Statement-Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-04) : Disaggregation of Income Statement Expenses, as amended. The amendments in this update require disaggregated disclosure of income statement expense captions into specified categories in disclosures within the footnotes to the financial statements. The ASU is effective for the Registrants for annual reporting periods beginning after December 15, 2026, and for interim reporting periods beginning after December 15, 2027. The guidance may be applied on a prospective or retrospective basis. Early adoption is permitted. The Registrants will apply the guidance upon the effective date.

Revenue

Revenue	12 Months Ended
	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenue	REVENUE Significant Accounting Policy Revenue is measured based upon the consideration specified in a contract with a customer at the time when performance obligations are satisfied. A performance obligation is a promise in a contract to transfer a distinct good or service or a series of distinct goods or services to the customer. The Registrants recognize revenue when performance obligations are satisfied by transferring control over a product or service to a customer. The Registrants have determined control to be transferred when the product is delivered, or the service is provided to the customer. Rates for DTE Electric and DTE Gas include provisions to adjust billings for fluctuations in fuel and purchased power costs, cost of natural gas, and certain other costs. Revenues are adjusted for differences between actual costs subject to reconciliation and the amounts billed in current rates. Under or over recovered revenues related to these cost recovery mechanisms are included in Regulatory assets or liabilities on the Registrants' Consolidated Statements of Financial Position and are recovered or returned to customers through adjustments to the billing factors. For discussion of derivative contracts, see Note 12 to the Consolidated Financial Statements, "Financial and Other Derivative Instruments." Disaggregation of Revenue The following is a summary of revenues disaggregated by segment for DTE Energy: 2024 2023 2022 (In millions) Electric (a) Residential $ 3,045 $ 2,847 $ 2,911 Commercial 2,263 2,114 1,958 Industrial 715 732 659 Other (b) 270 125 884 Total Electric operating revenues $ 6,293 $ 5,818 $ 6,412 Gas Gas sales $ 1,307 $ 1,324 $ 1,442 End User Transportation 246 250 264 Intermediate Transportation 83 85 81 Other (b) 162 89 137 Total Gas operating revenues $ 1,798 $ 1,748 $ 1,924 Other segment operating revenues DTE Vantage $ 753 $ 809 $ 848 Energy Trading $ 3,843 $ 4,612 $ 10,308 _______________________________________ (a) Revenues generally represent those of DTE Electric, except $16 million, $14 million, and $15 million of Other revenues related to DTE Sustainable Generation for the years ended December 31, 2024, 2023, and 2022, respectively. (b) Includes revenue adjustments related to various regulatory mechanisms, including the PSCR at the Electric segment and GCR at the Gas segment. Revenues related to these mechanisms may vary based on changes in the cost of fuel, purchased power, and gas. Revenues included the following which were outside the scope of Topic 606: 2024 2023 2022 (In millions) Electric — Alternative Revenue Programs $ 43 $ 36 $ 35 Electric — Other revenues $ 25 $ 22 $ 19 Gas — Alternative Revenue Programs $ 21 $ 16 $ 9 Gas — Other revenues $ 11 $ 8 $ 7 DTE Vantage — Leases $ 60 $ 59 $ 82 Energy Trading — Derivatives $ 2,540 $ 3,436 $ 8,489 Nature of Goods and Services The following is a description of principal activities, separated by reportable segments, from which DTE Energy generates revenue. For more detailed information about reportable segments, see Note 21 to the Consolidated Financial Statements, “Segment and Related Information.” The Registrants have contracts with customers which may contain more than one performance obligation. When more than one performance obligation exists in a contract, the consideration under the contract is allocated to the performance obligations based on the relative standalone selling price. DTE Energy generally determines standalone selling prices based on the prices charged to customers or the use of the adjusted market assessment approach. The adjusted market assessment approach involves the evaluation of the market in which DTE Energy sells goods or services and estimating the price that a customer in that market would be willing to pay. Under Topic 606, when a customer simultaneously receives and consumes the product or service provided, revenue is considered to be recognized over time. Alternatively, if it is determined that the criteria for recognition of revenue over time is not met, the revenue is considered to be recognized at a point in time. Electric segment The Electric segment consists principally of DTE Electric. Electric revenues are primarily comprised of the supply and delivery of electricity, related capacity, and RECs. Revenues are primarily associated with cancellable contracts, with the exception of certain long-term contracts with commercial and industrial customers. Revenues, including estimated unbilled amounts, are generally recognized over time based upon volumes delivered or through the passage of time ratably based upon providing a stand-ready service. The Registrants have determined that the above methods represent a faithful depiction of the transfer of control to the customer. Unbilled revenues are typically determined utilizing approved tariff rates and estimated meter volumes. Estimated unbilled amounts recognized in revenue are subject to adjustment in the following reporting period as actual volumes by customer class are known. Revenues are typically subject to tariff rates based upon customer class and type of service and are billed and received monthly. Tariff rates are determined by the MPSC on a per unit or monthly basis. Gas segment The Gas segment consists principally of DTE Gas. Gas revenues are primarily comprised of the supply and delivery of natural gas, and other services including storage, transportation, and appliance maintenance. Revenues are primarily associated with cancellable contracts, with the exception of certain long-term contracts with commercial and industrial customers. Revenues, including estimated unbilled amounts, are generally recognized over time based upon volumes delivered or through the passage of time ratably based upon providing a stand-ready service. DTE Energy has determined that the above methods represent a faithful depiction of the transfer of control to the customer. Unbilled revenues are typically determined using both estimated meter volumes and estimated usage based upon the number of unbilled days and historical temperatures. Estimated unbilled amounts recognized in revenue are subject to adjustment in the following reporting period as actual volumes by customer class and service type are known. Revenues are typically subject to tariff rates or other rates subject to regulatory oversight and are billed and received monthly. Tariff rates are determined by the MPSC on a per unit or monthly basis. DTE Vantage segment The DTE Vantage segment revenues include contracts accounted for as leases which are outside of the scope of Topic 606. For performance obligations within the scope of Topic 606, the timing of revenue recognition is dependent upon when control over the associated product or service is transferred. Revenues at DTE Vantage, within the scope of Topic 606, generally consist of sales of blast furnace coke, renewable natural gas and related credits, electricity, equipment maintenance services, and other energy related products and services. Revenues for the sale of blast furnace coke, including estimated unbilled amounts, are recognized at a point in time when the product is delivered, which represents the transfer of control to the customer. Other revenues are generally recognized over time based upon volumes delivered or services provided, or through the passage of time ratably based upon providing a stand-ready service. DTE Energy has determined that the above methods represent a faithful depiction of the transfer of control to the customer. Market based pricing structures exist in such contracts including adjustments for consumer price or other indices. Consideration may consist of both fixed and variable components. Generally, uncertainties in the variable consideration components are resolved, and revenues are known at the time of recognition. Billing terms vary and are generally monthly with payment terms typically within 30 days following billing. Energy Trading segment The Energy Trading segment revenues consist primarily of derivative contracts outside of the scope of Topic 606. For performance obligations within the scope of Topic 606, the timing of revenue recognition is dependent upon when control over the associated product or service is transferred. Revenues, including estimated unbilled amounts, within the scope of Topic 606 arising from the sale of natural gas, electricity, power capacity, and other energy related products are generally recognized over time based upon volumes delivered or through the passage of time ratably based upon providing a stand-ready service. DTE Energy has determined that the above methods represent a faithful depiction of the transfer of control to the customer. Revenues are known at the time of recognition. Payment for the aforementioned revenues is generally due from customers in the month following delivery. Revenues associated with RECs and other environmental products are recognized at a point in time when control is transferred to the customer which is deemed to be when these products are entered for transfer to the customer in the applicable tracking system. Revenues associated with RECs under a wholesale full requirements power contract are deferred until control has been transferred. The deferred revenues represent a contract liability for which payment has been received and the amounts have been estimated using the adjusted market assessment approach. With the exception of RECs, generally all other performance obligations associated with wholesale full requirements power contracts are satisfied over time in conjunction with the delivery of power. At the time power is delivered, DTE Energy may not have control over the RECs as the RECs are not self-generated and may not yet have been procured resulting in deferred revenues. Deferred Revenue The following is a summary of deferred revenue activity for DTE Energy: 2024 2023 (In millions) Beginning Balance, January 1 $ 106 $ 94 Increases due to cash received or receivable, excluding amounts recognized as revenue during the period 132 103 Revenue recognized that was included in the deferred revenue balance at the beginning of the period (100) (91) Ending Balance, December 31 $ 138 $ 106 Deferred revenues are included in Current Liabilities — Other and Other Liabilities — Other on DTE Energy's Consolidated Statements of Financial Position. Deferred revenues generally represent amounts paid by or receivables from customers for which the associated performance obligation has not yet been satisfied. Deferred revenues include amounts associated with REC performance obligations under certain wholesale full requirements power contracts. Deferred revenues related to RECs are recognized as revenue when control of the RECs has transferred. Other performance obligations associated with deferred revenues include providing products and services related to customer prepayments. Deferred revenues associated with these products and services are recognized when control has transferred to the customer. The following table represents deferred revenue amounts for DTE Energy that are expected to be recognized as revenue in future periods: DTE Energy (In millions) 2025 $ 135 2026 1 2027 1 2028 1 2029 — 2030 and thereafter — $ 138 Transaction Price Allocated to the Remaining Performance Obligations In accordance with optional exemptions available under Topic 606, the Registrants did not disclose the value of unsatisfied performance obligations for (1) contracts with an original expected length of one year or less, (2) with the exception of fixed consideration, contracts for which revenue is recognized at the amount to which the Registrants have the right to invoice for goods provided and services performed, and (3) contracts for which variable consideration relates entirely to an unsatisfied performance obligation. Such contracts consist of varying types of performance obligations across the segments, including the supply and delivery of energy related products and services. Contracts with variable volumes and/or variable pricing, including those with pricing provisions tied to a consumer price or other index, have also been excluded as the related consideration under the contract is variable at inception of the contract. Contract lengths vary from cancellable to multi-year. The Registrants expect to recognize revenue for the following amounts related to fixed consideration associated with remaining performance obligations in each of the future periods noted: DTE Energy DTE Electric (In millions) 2025 $ 225 $ 1 2026 170 — 2027 133 — 2028 90 — 2029 77 — 2030 and thereafter 327 — $ 1,022 $ 1

Property, Plant, and Equipment

Property, Plant, and Equipment	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment	PROPERTY, PLANT, AND EQUIPMENT The following is a summary of Property, plant, and equipment by classification as of December 31: 2024 2023 Property, plant, and equipment (In millions) DTE Electric Distribution $ 14,995 $ 13,673 Dispatchable generation 8,428 7,969 Renewable generation 3,933 3,074 Other 3,445 3,220 Total DTE Electric 30,801 27,936 DTE Gas Distribution 6,334 5,838 Transmission 1,212 1,132 Storage 586 578 Other 500 481 Total DTE Gas 8,632 8,029 DTE Vantage 1,135 1,075 Other 272 234 Total DTE Energy $ 40,840 $ 37,274 Accumulated depreciation and amortization DTE Electric Distribution $ (3,513) $ (3,205) Dispatchable generation (2,146) (1,872) Renewable generation (615) (524) Other (1,130) (969) Total DTE Electric (7,404) (6,570) DTE Gas Distribution (1,319) (1,365) Transmission (278) (300) Storage (138) (132) Other (210) (193) Total DTE Gas (1,945) (1,990) DTE Vantage (520) (479) Other (78) (66) Total DTE Energy $ (9,947) $ (9,105) Net DTE Energy Property, plant, and equipment $ 30,893 $ 28,169 Net DTE Electric Property, plant, and equipment $ 23,397 $ 21,366 AFUDC and Capitalized Interest AFUDC represents the cost of financing construction projects for regulated businesses, including the estimated cost of debt and authorized return on equity. The debt component is recorded as a reduction to Interest expense and the equity component is recorded as Other income on the Registrants' Consolidated Statements of Operations. Non-regulated businesses record capitalized interest as a reduction to Interest expense. The AFUDC and capitalized interest rates were as follows for the years ended December 31: 2024 2023 2022 DTE Electric AFUDC 5.56 % 5.53 % 5.46 % DTE Gas AFUDC 5.45 % 5.41 % 5.41 % Non-regulated businesses capitalized interest 4.25 % 3.00 % 3.00 % The following is a summary of AFUDC and interest capitalized for the years ended December 31: 2024 2023 2022 DTE Energy (In millions) Allowance for debt funds used during construction and interest capitalized $ 36 $ 20 $ 13 Allowance for equity funds used during construction 86 42 29 Total $ 122 $ 62 $ 42 2024 2023 2022 DTE Electric (In millions) Allowance for debt funds used during construction $ 34 $ 15 $ 11 Allowance for equity funds used during construction 84 40 26 Total $ 118 $ 55 $ 37 Depreciation and Amortization The composite depreciation rate for DTE Electric was approximately 4.2% in 2024, 4.4% in 2023, and 4.2% in 2022. The composite depreciation rate for DTE Gas was 2.9% in 2024, 2023, and 2022. The average estimated useful life for each major class of utility Property, plant, and equipment as of December 31, 2024 follows: Estimated Useful Lives in Years Utility Distribution Generation Transmission Storage DTE Electric 38 32 N/A N/A DTE Gas 55 N/A 67 60 The estimated useful lives for DTE Electric's Other utility assets range from 3 to 45 years, while the estimated useful lives for DTE Gas' Other utility assets range from 3 to 39 years. The estimated useful lives for major classes of DTE Energy's non-utility assets and facilities range from 3 to 50 years. The following is a summary of Depreciation and amortization expense for DTE Energy: 2024 2023 2022 (In millions) Property, plant, and equipment $ 1,316 $ 1,239 $ 1,148 Regulatory assets and liabilities 394 344 297 Intangible assets 16 15 16 Other 6 8 7 $ 1,732 $ 1,606 $ 1,468 The following is a summary of Depreciation and amortization expense for DTE Electric: 2024 2023 2022 (In millions) Property, plant, and equipment $ 1,089 $ 1,029 $ 951 Regulatory assets and liabilities 338 292 248 Other 5 5 5 $ 1,432 $ 1,326 $ 1,204 Capitalized Software Capitalized software costs are classified as Property, plant, and equipment and the related amortization is included in Accumulated depreciation and amortization on the Registrants' Consolidated Statements of Financial Position. The Registrants capitalize the costs associated with computer software developed or obtained for use in their businesses. The Registrants amortize capitalized software costs on a straight-line basis over the expected period of benefit, ranging from 3 to 15 years for both DTE Energy and DTE Electric. The following balances for capitalized software relate to DTE Energy: Year Ended December 31, 2024 2023 2022 (In millions) Amortization expense of capitalized software $ 192 $ 189 $ 159 Gross carrying value of capitalized software $ 1,005 $ 940 Accumulated amortization of capitalized software $ 476 $ 427 The following balances for capitalized software relate to DTE Electric: Year Ended December 31, 2024 2023 2022 (In millions) Amortization expense of capitalized software $ 175 $ 172 $ 146 Gross carrying value of capitalized software $ 910 $ 849 Accumulated amortization of capitalized software $ 414 $ 369

Jointly-Owned Utility Plant

Jointly-Owned Utility Plant	12 Months Ended
	Dec. 31, 2024
Jointly Owned Utility Plant, Net Ownership Amount [Abstract]
Jointly-Owned Utility Plant	JOINTLY-OWNED UTILITY PLANT DTE Electric has joint ownership interest in two power plants, Belle River and Ludington Hydroelectric Pumped Storage. DTE Electric’s share of direct expenses of the jointly-owned plants are included in Fuel, purchased power, and gas — utility and Operation and maintenance expenses in the DTE Energy Consolidated Statements of Operations and Fuel and purchased power — utility and Operation and maintenance expenses in the DTE Electric Consolidated Statements of Operations. DTE Electric's ownership information of the two utility plants as of December 31, 2024 was as follows: Belle River Ludington In-service date 1984-1985 1973 Total plant capacity 1,270 MW 2,290 MW Ownership interest 81% 49% Investment in Property, plant, and equipment (in millions) $ 2,053 $ 656 Accumulated depreciation (in millions) $ 1,140 $ 160 Belle River The Michigan Public Power Agency (MPPA) has ownership interests in Belle River Unit No. 1 and other related facilities. The MPPA is entitled to 19% of the total capacity and energy of the plant and is responsible for the same percentage of the plant’s operation, maintenance, and capital improvement costs. Ludington Hydroelectric Pumped Storage Consumers Energy Company has an ownership interest in the Ludington Hydroelectric Pumped Storage Plant. Consumers Energy is entitled to 51% of the total capacity and energy of the plant and is responsible for the same percentage of the plant’s operation, maintenance, and capital improvement costs. For discussion of the ongoing contract dispute related to the Ludington Plant, see Note 17 to the Consolidated Financial Statements, "Commitments and Contingencies."

Asset Retirement Obligations

Asset Retirement Obligations	12 Months Ended
	Dec. 31, 2024
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligations	ASSET RETIREMENT OBLIGATIONS DTE Electric has a legal retirement obligation for the decommissioning costs for its Fermi 1 and Fermi 2 nuclear plants, dismantlement of facilities located on leased property, and various other operations. DTE Electric has conditional retirement obligations for asbestos and PCB removal at certain of its power plants and various distribution equipment. DTE Gas has conditional retirement obligations for gas pipelines, certain service centers, and compressor and gate stations. The Registrants recognize such obligations as liabilities at fair market value when they are incurred, which generally is at the time the associated assets are placed in service. Fair value is measured using expected future cash outflows discounted at the Registrants' credit-adjusted risk-free rate. For its utility operations, the Registrants recognize in the Consolidated Statements of Operations removal costs in accordance with regulatory treatment. Any differences between costs recognized related to asset retirement and those reflected in rates are recognized as either a Regulatory asset or liability on the Consolidated Statements of Financial Position. If a reasonable estimate of fair value cannot be made in the period in which the retirement obligation is incurred, such as for assets with indeterminate lives, the liability is recognized when a reasonable estimate of fair value can be made. Natural gas storage system and certain other distribution assets for DTE Gas and substations, manholes, and certain other distribution assets for DTE Electric have an indeterminate life. Therefore, no liability has been recorded for these assets. Changes to Asset retirement obligations for 2024, 2023, and 2022 were as follows: 2024 2023 2022 DTE Energy (In millions) Asset retirement obligations at January 1 $ 3,556 $ 3,460 $ 3,162 Accretion 211 198 184 Liabilities incurred (a) 324 7 24 Liabilities settled (14) (96) (7) Revision in estimated cash flows (46) (13) 97 Asset retirement obligations at December 31 $ 4,031 $ 3,556 $ 3,460 _______________________________________ (a) Liabilities incurred was primarily due to the impact of the Coal Combustion Residuals on DTE Electric's coal ash storage facility asset retirement obligations. Refer to Note 17 to the Consolidated Financial Statements, "Commitments and Contingencies." 2024 2023 2022 DTE Electric (In millions) Asset retirement obligations at January 1 $ 3,326 $ 3,221 $ 2,932 Accretion 199 185 172 Liabilities incurred (a) 323 4 22 Liabilities settled (11) (81) (2) Revision in estimated cash flows (46) (3) 97 Asset retirement obligations at December 31 $ 3,791 $ 3,326 $ 3,221 _______________________________________ (a) Liabilities incurred was primarily due to the impact of the Coal Combustion Residuals on DTE Electric's coal ash storage facility asset retirement obligations. Refer to Note 17 to the Consolidated Financial Statements, "Commitments and Contingencies." Approximately $2.9 billion of the Asset retirement obligations represent nuclear decommissioning liabilities that are funded through a surcharge to electric customers over the life of the Fermi 2 nuclear plant. The NRC has jurisdiction over the decommissioning of nuclear power plants and requires minimum decommissioning funding based upon a formula. The MPSC and FERC regulate the recovery of costs of decommissioning nuclear power plants and both require the use of external trust funds to finance the decommissioning of Fermi 2. Rates approved by the MPSC provide for the recovery of decommissioning costs of Fermi 2 and the disposal of low-level radioactive waste. DTE Electric believes the MPSC collections will be adequate to fund the estimated cost of decommissioning. The decommissioning assets, anticipated earnings thereon, and future revenues from decommissioning collections will be used to decommission Fermi 2. DTE Electric expects the liabilities to be reduced to zero at the conclusion of the decommissioning activities. If amounts remain in the trust funds for Fermi 2 following the completion of the decommissioning activities, those amounts will be disbursed based on rulings by the MPSC and FERC. A portion of the funds recovered through the Fermi 2 decommissioning surcharge and deposited in external trust accounts is designated for the removal of non-radioactive assets and returning the site to greenfield. This removal and greenfielding is not considered a legal liability. Therefore, it is not included in the asset retirement obligation, but is reflected as the Nuclear decommissioning liability. The decommissioning of Fermi 1 is funded by DTE Electric. Contributions to the Fermi 1 trust are discretionary. For additional discussion of Nuclear decommissioning trust fund assets, see Note 11 to the Consolidated Financial Statements, "Fair Value."

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2024
Regulatory Assets and Liabilities Disclosure [Abstract]
Regulatory Matters	REGULATORY MATTERS Regulation DTE Electric and DTE Gas are subject to the regulatory jurisdiction of the MPSC, which issues orders pertaining to rates, recovery of certain costs, including the costs of generating facilities and regulatory assets, conditions of service, accounting, and operating-related matters. The MPSC has authorized a return on equity of 9.9% for DTE Electric and 9.8% for DTE Gas, subject to changes from any pending or future rate case filings. DTE Electric is also regulated by the FERC with respect to financing authorization, wholesale electric market activities, certain affiliate transactions, the acquisition and disposition of certain generation and other facilities, and, in conjunction with the NERC, compliance with mandatory reliability standards. Regulation results in differences in the application of generally accepted accounting principles between regulated and non-regulated businesses. The Registrants are unable to predict the outcome of any unresolved regulatory matters discussed herein. Resolution of these matters is dependent upon future MPSC and FERC orders and appeals, which may materially impact the Consolidated Financial Statements of the Registrants. Regulatory Assets and Liabilities DTE Electric and DTE Gas are required to record Regulatory assets and liabilities for certain transactions that would have been treated as revenue or expense in non-regulated businesses. Continued applicability of regulatory accounting treatment requires that rates be designed to recover specific costs of providing regulated services and be charged to and collected from customers. Future regulatory changes could result in the discontinuance of this accounting treatment for Regulatory assets and liabilities for some or all of the Registrants' businesses and may require the write-off of the portion of any Regulatory asset or liability that was no longer probable of recovery through regulated rates. Management believes that currently available facts support the continued use of Regulatory assets and liabilities and that all Regulatory assets and liabilities are recoverable or refundable in the current regulatory environment. The following are balances and a brief description of the Registrants' Regulatory assets and liabilities at December 31: DTE Energy DTE Electric 2024 2023 2024 2023 Assets (In millions) Recoverable undepreciated costs on retiring plants $ 2,986 $ 2,736 $ 2,986 $ 2,736 Recoverable pension and other postretirement costs Pension 1,315 1,421 971 1,045 Other postretirement costs 91 163 — 67 Fermi 2 asset retirement obligation 951 952 951 952 Removal costs asset 501 223 501 223 Enhanced tree trimming program deferred costs 211 157 211 157 Recoverable Michigan income taxes 119 133 99 110 Recoverable income taxes related to AFUDC equity 116 89 107 80 Energy Waste Reduction incentive 102 90 82 72 Renewable ITC offset 89 — 89 — Deferred environmental costs 43 46 — — Unamortized loss on reacquired debt 38 41 29 31 Customer360 deferred costs 34 38 34 38 Ludington contract dispute costs 31 10 31 10 Accrued PSCR/GCR revenue — 55 — 55 Other 194 163 135 119 6,821 6,317 6,226 5,695 Less amount included in Current Assets (50) (108) (39) (99) $ 6,771 $ 6,209 $ 6,187 $ 5,596 Securitized regulatory assets $ 690 $ 758 $ 690 $ 758 DTE Energy DTE Electric 2024 2023 2024 2023 Liabilities (In millions) Refundable federal income taxes $ 1,733 $ 1,823 $ 1,389 $ 1,463 Removal costs liability 506 342 — — Non-service pension and other postretirement costs 255 199 94 84 Negative other postretirement offset 214 210 139 142 Accrued PSCR/GCR refund 136 21 111 — Renewable energy 90 7 90 7 Other 103 72 86 63 3,037 2,674 1,909 1,759 Less amount included in Current Liabilities (181) (71) (156) (49) $ 2,856 $ 2,603 $ 1,753 $ 1,710 As noted below, certain Regulatory assets for which costs have been incurred have been included (or are expected to be included, for costs incurred subsequent to the most recently approved rate case) in DTE Electric's or DTE Gas' rate base, thereby providing a return on invested costs (except as noted). Certain other Regulatory assets are not included in rate base but accrue recoverable carrying charges until surcharges to collect the assets are billed. Certain Regulatory assets do not result from cash expenditures and therefore do not represent investments included in rate base or have offsetting liabilities that reduce rate base. ASSETS • Recoverable undepreciated costs on retiring plants — Undepreciated costs at the Belle River and Monroe power plants that will be retired in future periods. These costs were approved for recovery as a result of DTE Electric's Integrated Resource Plan settlement agreement in 2023. The Belle River power plant will be retired in 2025-2026 and the Monroe power plant will be retired in 2032. Amounts will be recovered in the future through securitization and amortization. • Recoverable pension and other postretirement costs — Accounting standards for pension and other postretirement benefit costs require, among other things, the recognition in Other comprehensive income of the actuarial gains or losses and the prior service costs that arise during the period but are not immediately recognized as components of net periodic benefit costs (credits). DTE Electric and DTE Gas record the impact of actuarial gains or losses and prior service costs as Regulatory assets or Regulatory liabilities since the traditional rate setting process allows for the recovery of pension and other postretirement costs. The asset and liability will reverse as the deferred items are amortized and recognized as components of net periodic benefit costs (credits). Refer to Note 19 to the Consolidated Financial Statements, "Retirement Benefits and Trusteed Assets," for additional information regarding the changes in pension and other postretirement costs for the period and the impact on Regulatory assets. (a) • Fermi 2 asset retirement obligation — Obligation for Fermi 2 decommissioning costs. The asset captures the timing differences between expense recognition and current recovery in rates and will reverse over the remaining life of the related plant. (a) • Removal costs asset — Receivable for the recovery of asset removal expenditures in excess of amounts collected from customers. • Enhanced tree trimming program deferred costs — The MPSC approved the deferral of costs for a tree trimming surge through 2025, aimed at reducing the number and duration of customer interruptions. • Recoverable Michigan income taxes — The State of Michigan enacted a corporate income tax resulting in the establishment of state deferred tax liabilities for DTE Energy's utilities. Offsetting Regulatory assets were also recorded as the impacts of the deferred tax liabilities will be reflected in rates as the related taxable temporary differences reverse and flow through current income tax expense. • Recoverable income taxes related to AFUDC equity — Accounting standards for income taxes require recognition of a deferred tax liability for the equity component of AFUDC. A Regulatory asset is required for the future increase in taxes payable related to the equity component of AFUDC that will be recovered from customers through future rates over the remaining life of the related plant. • Energy Waste Reduction incentive — DTE Electric and DTE Gas operate MPSC approved energy waste reduction programs designed to reduce overall energy usage by their customers. The utilities are eligible to earn an incentive by exceeding statutory savings targets. The utilities have consistently exceeded the savings targets and recognize the incentive as a Regulatory asset in the period earned. (a) • Renewable ITC offset — DTE Electric's accounting policy for ITCs is to use the deferral method where the ITC benefit is deferred and amortized to net income over the book life of the related property. For an ITC that is sold, this regulatory asset is used to adjust net income to reflect the benefit over a period shorter than the book life, as approved by the MPSC. (a) • Deferred environmental costs — The MPSC approved the deferral of investigation and remediation costs associated with DTE Gas' former MGP sites. Amortization of deferred costs is over a ten-year period beginning in the year after costs were incurred, with recovery (net of any insurance proceeds) through base rate filings. (a) • Unamortized loss on reacquired debt — The unamortized discount, premium, and expense related to debt redeemed with a refinancing are deferred, amortized, and recovered over the life of the replacement issue. • Customer360 deferred costs — The MPSC approved the deferral and amortization of certain costs associated with implementing Customer360, an integrated software application that enables improved interface among customer service, billing, meter reading, credit and collections, device management, account management, and retail access. Amortization of deferred costs over a 15-year amortization period began after the billing system was put into operation during the second quarter of 2017. The deferred costs are recorded as Regulatory Assets at DTE Electric and DTE Gas receives an intercompany charge for their proportionate share of amortization expense. • Ludington contract dispute costs — The MPSC approved the deferral of costs incurred for repairing or replacing defective work performed by a third party related to the overhaul and upgrade of the Ludington Hydroelectric Pumped Storage Plant while the dispute is in litigation. These costs will be offset by any potential future proceeds received related to the litigation. Upon resolution of the dispute, DTE Electric will have the opportunity to seek recovery through the regulatory process for any remaining costs. Refer to the Ludington Plant Contract Dispute section of Note 17 to the Consolidated Financial Statements, “Commitments and Contingencies,” for additional information regarding the complaint and ongoing legal proceedings. • Accrued PSCR/GCR revenue — Receivable for the temporary under-recovery of and carrying costs on fuel and purchased power costs incurred by DTE Electric which are recoverable through the PSCR mechanism and temporary under-recovery of and carrying costs on gas costs incurred by DTE Gas which are recoverable through the GCR mechanism. • Securitized regulatory assets — Costs approved for securitization and recovery by the MPSC. Amounts include the undepreciated cost of the River Rouge power plant and tree trim surge costs. Securitization bond surcharges began in 2022 to recover the tree trimming costs over a period not to exceed 5 years and River Rouge costs over a period not to exceed 14 years. Amounts also include the undepreciated costs of the St. Clair and Trenton Channel power plants. Securitization bond surcharges began in 2023 to recover costs over a period not to exceed 15 years. ________________________________________________ (a) Regulatory assets not earning a return or accruing carrying charges. LIABILITIES • Refundable federal income taxes — In December 2017, the TCJA was enacted and reduced the corporate income tax rate, effective January 1, 2018. DTE Electric and DTE Gas remeasured deferred taxes, resulting in a reduction to deferred tax liabilities, to reflect the impact of the TCJA on the cumulative temporary differences expected to reverse after the effective date. Regulatory liabilities were also recorded to offset the impact of the deferred tax remeasurement reflected in rates. • Removal costs liability — The amounts collected from customers to fund future asset removal activities in excess of removal costs incurred. • Non-service pension and other postretirement costs — Upon adoption of ASU 2017-07 on January 1, 2018, certain non-service pension and other postretirement cost activity is no longer credited to Property, plant, and equipment. Such costs may be recorded to Regulatory liabilities for ratemaking purposes and refunded through credits to amortization expense based on the composite depreciation rate for plant-in-service. • Negative other postretirement offset — DTE Electric and DTE Gas' negative other postretirement costs have historically not been included as a reduction to their authorized rates; therefore, DTE Electric and DTE Gas have accrued a Regulatory liability to eliminate the impact on earnings of the negative other postretirement expense accrual. The Regulatory liabilities may reverse to the extent DTE Electric and DTE Gas' other postretirement expense is positive in future years. As a result of MPSC orders, the Regulatory liability balances as of December 31, 2022 began to be amortized over a 7-year period for both DTE Electric and DTE Gas. • Accrued PSCR/GCR refund — Liability for the temporary over-recovery of and a return on power supply costs and transmission costs incurred by DTE Electric which are recoverable through the PSCR mechanism and temporary over-recovery of and a return on gas costs primarily incurred by DTE Gas which are recoverable through the GCR mechanism. • Renewable energy — Amounts collected in excess of renewable energy expenditures, including subscription revenue related to MIGreenPower, DTE Electric's voluntary renewable program providing customers the option to source their energy usage from renewables. 2024 Gas Rate Case Filing DTE Gas filed a rate case with the MPSC on January 8, 2024 requesting an increase in base rates of $266 million based on a projected twelve-month period ending September 30, 2025, and an increase in return on equity from 9.9% to 10.25%. The request reflected a net increase to customer rates of only $160 million, as an existing IRM surcharge of $106 million would be rolled into the new base rates. The requested increase was primarily due to increased investments in plant related to system reliability and pipeline safety and inflationary impacts on operating costs, partially offset by higher sales. On November 7, 2024, the MPSC issued an order approving an annual revenue increase of $114 million for services rendered on or after November 21, 2024 and a return on equity of 9.8%. 2024 Electric Rate Case Filing DTE Electric filed a rate case with the MPSC on March 28, 2024 requesting an increase in base rates of $456 million based on a projected twelve-month period ending December 31, 2025, and an increase in return on equity from 9.9% to 10.5%. The requested increase in base rates was primarily due to the capital investments required to support continued reliability improvements and the ongoing transition to cleaner energy. The requested increase in base rates was also due to the increased cost of debt resulting from market dynamics and increasing operating and maintenance expenses. On January 23, 2025, the MPSC issued an order approving an annual revenue increase of $217 million for services rendered on or after February 6, 2025 and a return on equity of 9.9%. The MPSC order also disallowed $12 million of capital expenditures previously recorded, primarily related to various IT projects. The disallowance was included in Asset (gains) losses and impairments, net on the Consolidated Statements of Operations for the year ended December 31, 2024.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Income Tax Summary DTE Energy files a consolidated federal income tax return. DTE Electric is a part of the consolidated federal income tax return of DTE Energy. DTE Energy and its subsidiaries file consolidated and/or separate company income tax returns in various states and localities, including a consolidated return in the State of Michigan. DTE Electric is part of the Michigan consolidated income tax return of DTE Energy. The federal, state and local income tax expense for DTE Electric is determined on an individual company basis with no allocation of tax expenses or benefits from other affiliates of DTE Energy. DTE Electric had federal income tax receivables with DTE Energy of $5 million and $7 million at December 31, 2024 and 2023, respectively. Income tax receivables with DTE Energy are included in Accounts receivable – Affiliates on the DTE Electric Consolidated Statements of Financial Position. The Registrants' total Income Tax Expense varied from the statutory federal income tax rate for the following reasons: 2024 2023 2022 DTE Energy (In millions) Income Before Income Taxes $ 1,370 $ 1,566 $ 1,112 Income tax expense at 21% statutory rate $ 288 $ 329 $ 234 Production tax credits (a)(b) (169) (91) (91) Investment tax credits (a) (128) (44) (1) TCJA regulatory liability amortization (66) (63) (155) AFUDC equity (17) (7) (5) State and local income taxes, net of federal benefit 59 59 42 Other, net (1) (14) 5 Income Tax Expense (Benefit) $ (34) $ 169 $ 29 Effective income tax rate (2.5) % 10.8 % 2.6 % _______________________________________ (a) PTCs and ITCs include $231 million of certain eligible credits generated in 2023 and 2024, net of discount, that were sold in 2024 under the transferability provisions of the Inflation Reduction Act of 2022. Cash received related to the transfer of tax credits is included in Cash paid (received) for: Income taxes within the supplemental disclosures of cash flow information on the DTE Energy Consolidated Statements of Cash Flows. These tax credit sales are subject to standard indemnifications up to the cash received. Payments under these indemnifications are considered remote. (b) Includes nuclear PTCs of $89 million, net of discount, recognized in 2024. The nuclear PTCs continue to be the subject of additional guidance expected to be issued from the U.S. Department of the Treasury and IRS that may materially impact the total amount of the benefits we receive. The benefit of these PTCs is provided to customers through the regulatory construct of the PSCR mechanism. 2024 2023 2022 DTE Electric (In millions) Income Before Income Taxes $ 1,040 $ 850 $ 981 Income tax expense at 21% statutory rate $ 218 $ 179 $ 206 Production tax credits (a)(b) (162) (79) (83) Investment tax credits (a) (70) (1) (1) TCJA regulatory liability amortization (55) (53) (145) AFUDC equity (16) (7) (4) State and local income taxes, net of federal benefit 57 45 56 Other, net (4) (6) (3) Income Tax Expense (Benefit) $ (32) $ 78 $ 26 Effective income tax rate (3.1) % 9.2 % 2.7 % _______________________________________ (a) PTCs and ITCs include $231 million of certain eligible credits generated in 2023 and 2024, net of discount, that were sold in 2024 under the transferability provisions of the Inflation Reduction Act of 2022. Cash received related to the transfer of tax credits is included in Cash paid (received) for: Income taxes within the supplemental disclosures of cash flow information on the DTE Energy Consolidated Statements of Cash Flows. These tax credit sales are subject to standard indemnifications up to the cash received. Payments under these indemnifications are considered remote. (b) Includes nuclear PTCs of $89 million, net of discount, recognized in 2024. The nuclear PTCs continue to be the subject of additional guidance expected to be issued from the U.S. Department of the Treasury and IRS that may materially impact the total amount of the benefits we receive. The benefit of these PTCs is provided to customers through the regulatory construct of the PSCR mechanism. Components of the Registrants' Income Tax Expense were as follows: 2024 2023 2022 DTE Energy (In millions) Current income tax benefit Federal $ (226) $ (10) $ (13) State and other income tax (2) (2) (2) Total current income taxes (228) (12) (15) Deferred income tax expense (benefit) Federal 117 103 (13) State and other income tax 77 78 57 Total deferred income taxes 194 181 44 $ (34) $ 169 $ 29 2024 2023 2022 DTE Electric (In millions) Current income tax expense (benefit) Federal $ (228) $ 1 $ 1 State and other income tax — (5) — Total current income taxes (228) (4) 1 Deferred income tax expense (benefit) Federal 124 19 (46) State and other income tax 72 63 71 Total deferred income taxes 196 82 25 $ (32) $ 78 $ 26 Deferred tax assets and liabilities are recognized for the estimated future tax effect of temporary differences between the tax basis of assets or liabilities and the reported amounts in the Registrants' Consolidated Financial Statements. The Registrants' deferred tax assets (liabilities) were comprised of the following at December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Property, plant, and equipment $ (3,695) $ (3,423) $ (2,788) $ (2,693) Regulatory assets and liabilities (1,272) (1,158) (1,492) (1,314) Tax credit carryforwards 1,604 1,519 583 572 Pension and benefits 55 77 62 69 Federal net operating loss carryforward 190 202 30 71 State and local net operating loss carryforwards 68 76 42 49 Investments in equity method investees (28) (33) (1) — Other 145 130 176 137 (2,933) (2,610) (3,388) (3,109) Less: Valuation allowance (25) (39) (5) — Long-term deferred income tax liabilities $ (2,958) $ (2,649) $ (3,393) $ (3,109) Deferred income tax assets $ 2,508 $ 2,415 $ 1,209 $ 1,202 Deferred income tax liabilities (5,466) (5,064) (4,602) (4,311) $ (2,958) $ (2,649) $ (3,393) $ (3,109) Tax credit carryforwards for DTE Energy include $1.6 billion of general business credits that expire from 2032 through 2046. No valuation allowance is required for the tax credit carryforwards deferred tax asset. DTE Energy has a pre-tax federal net operating loss carryforward of $904 million as of December 31, 2024 which can be carried forward indefinitely. No valuation allowance is required for the federal net operating loss deferred tax asset. DTE Energy has state and local deferred tax assets related to net operating loss carryforwards of $68 million and $76 million at December 31, 2024 and 2023, respectively. Most of the state and local net operating loss carryforwards expire from 2025 through 2046 with the remainder being carried forward indefinitely. DTE Energy has recorded valuation allowances of $25 million and $39 million at December 31, 2024 and 2023, respectively. The valuation allowances include $16 million and $19 million related to the state net operating loss carryforwards noted above and $3 million and $20 million related to charitable contribution carryforwards as of the respective periods ended. Tax credit carryforwards for DTE Electric include $583 million of general business credits that expire from 2036 through 2046. No valuation allowance is required for the tax credit carryforwards deferred tax asset. DTE Electric has a pre-tax federal net operating loss carryforward of $142 million as of December 31, 2024 which can be carried forward indefinitely. No valuation allowance is required for the federal net operating loss deferred tax asset. DTE Electric has $42 million and $49 million in state and local deferred tax assets related to net operating loss carryforwards at December 31, 2024 and 2023, respectively, which will expire from 2030 through 2042. No valuation allowance is required for the state and local net operating loss deferred tax assets. In assessing the realizability of deferred tax assets, DTE Energy considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. The above tables exclude unamortized ITCs that are shown separately on the Registrants' Consolidated Statements of Financial Position. DTE Energy's policy election is to follow the flow-through method of accounting for ITCs earned from its non-utility businesses and the deferral method of accounting for its regulated utilities due to different economic profiles of the various entities. The flow-through method used by the non-utility businesses recognizes ITCs in earnings when the related assets are placed in service. The ITCs generated by the regulated utilities are deferred and amortized to earnings over the average life of the related property. ITCs generated and sold by the regulated utilities are offset with a regulatory asset to give the benefit to customers over a period shorter than the book life, as approved by the MPSC. Refer to Note 8 to the Consolidated Financial Statements, "Regulatory Matters" for the regulatory asset balance at December 31, 2024. Uncertain Tax Positions There were no unrecognized tax benefits at the Registrants for the years ended December 31, 2024 or 2023. The Registrants recognize interest and penalties pertaining to income taxes in Interest expense and Other expenses, respectively, on the Consolidated Statements of Operations. DTE Energy did not recognize any interest expense related to income taxes in 2024 and recognized a nominal amount of interest expense related to income taxes in 2023 and 2022. DTE Electric did not recognize any interest expense related to income taxes in 2024 and recognized a nominal amount of interest expense in 2023 and $1 million in 2022. There was no accrued interest or penalties pertaining to income taxes for the Registrants at December 31, 2024 and 2023. Accrued interest pertaining to income taxes at December 31, 2022 was $5 million and $8 million for DTE Energy and DTE Electric, respectively. There were no accrued penalties pertaining to income taxes for the Registrants at December 31, 2022. In 2024, DTE Energy, including DTE Electric, settled a federal tax audit for the 2022 tax year. DTE Energy's federal income tax returns for 2023 and subsequent years remain subject to examination by the IRS. DTE Energy's Michigan Corporate Income Tax returns for the year 2019 and subsequent years remain subject to examination by the State of Michigan. DTE Energy also files tax returns in numerous state and local jurisdictions with varying statutes of limitation.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2024
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE Basic earnings per share is calculated by dividing net income, adjusted for income allocated to participating securities, by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflect the dilution that would occur if any potentially dilutive instruments were exercised or converted into common shares. DTE Energy's participating securities are restricted shares under the stock incentive program that contain rights to receive non-forfeitable dividends. Performance shares do not receive cash dividends; as such, these awards are not considered participating securities. For additional information regarding performance shares, see Note 20 to the Consolidated Financial Statements, "Stock-Based Compensation." The following is a reconciliation of DTE Energy's basic and diluted income per share calculation for the years ended December 31: 2024 2023 2022 (In millions, except per share amounts) Basic Earnings per Share Net Income Attributable to DTE Energy Company $ 1,404 $ 1,397 $ 1,083 Less: Allocation of earnings to net restricted stock awards 3 3 3 Net income available to common shareholders — basic $ 1,401 $ 1,394 $ 1,080 Average number of common shares outstanding — basic 207 206 195 Basic Earnings per Common Share $ 6.78 $ 6.77 $ 5.53 Diluted Earnings per Share Net Income Attributable to DTE Energy Company $ 1,404 $ 1,397 $ 1,083 Less: Allocation of earnings to net restricted stock awards 3 3 3 Net income available to common shareholders — diluted $ 1,401 $ 1,394 $ 1,080 Average number of common shares outstanding — basic 207 206 195 Average performance share awards — — 1 Average number of common shares outstanding — diluted 207 206 196 Diluted Earnings per Common Share $ 6.77 $ 6.76 $ 5.52

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value	FAIR VALUE Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in a principal or most advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants use in pricing assets or liabilities. These inputs can be readily observable, market corroborated, or generally unobservable inputs. The Registrants make certain assumptions they believe that market participants would use in pricing assets or liabilities, including assumptions about risk, and the risks inherent in the inputs to valuation techniques. Credit risk of the Registrants and their counterparties is incorporated in the valuation of assets and liabilities through the use of credit reserves, the impact of which was immaterial at December 31, 2024 and 2023. The Registrants believe they use valuation techniques that maximize the use of observable market-based inputs and minimize the use of unobservable inputs. A fair value hierarchy has been established that prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall in different levels of the fair value hierarchy. All assets and liabilities are required to be classified in their entirety based on the lowest level of input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability and may affect the valuation of the asset or liability and its placement within the fair value hierarchy. The Registrants classify fair value balances based on the fair value hierarchy defined as follows: • Level 1 — Consists of unadjusted quoted prices in active markets for identical assets or liabilities that the Registrants have the ability to access as of the reporting date. • Level 2 — Consists of inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data. • Level 3 — Consists of unobservable inputs for assets or liabilities whose fair value is estimated based on internally developed models or methodologies using inputs that are generally less readily observable and supported by little, if any, market activity at the measurement date. Unobservable inputs are developed based on the best available information and subject to cost-benefit constraints. The following table presents assets and liabilities for DTE Energy measured and recorded at fair value on a recurring basis: December 31, 2024 December 31, 2023 Level 1 Level Level 3 Other (a) Netting (b) Net Balance Level 1 Level Level 3 Other (a) Netting (b) Net Balance (In millions) Assets Cash equivalents (c) $ 11 $ — $ — $ — $ — $ 11 $ 13 $ — $ — $ — $ — $ 13 Nuclear decommissioning trusts Equity securities 856 — — 147 — 1,003 776 — — 145 — 921 Fixed income securities 124 414 — 112 — 650 127 371 — 92 — 590 Private equity and other 16 — — 333 — 349 — — — 312 — 312 Hedge funds and similar investments 151 16 — 61 — 228 119 65 — — — 184 Cash equivalents 26 — — — — 26 34 — — — — 34 Other investments (d) Equity securities 72 — — — — 72 58 — — — — 58 Fixed income securities 7 — — — — 7 7 — — — — 7 Cash equivalents 29 — — — — 29 37 — — — — 37 Derivative assets Commodity contracts (e) Natural gas 242 81 105 — (285) 143 241 217 179 — (416) 221 Electricity 67 69 51 — (116) 71 — 258 163 — (243) 178 Environmental & Other 1 47 10 — (46) 12 — 131 8 — (132) 7 Other contracts — 21 — — — 21 — — — — — — Total derivative assets 310 218 166 — (447) 247 241 606 350 — (791) 406 Total $ 1,602 $ 648 $ 166 $ 653 $ (447) $ 2,622 $ 1,412 $ 1,042 $ 350 $ 549 $ (791) $ 2,562 Liabilities Derivative liabilities Commodity contracts (e) Natural gas $ (217) $ (70) $ (123) $ — $ 272 $ (138) $ (291) $ (167) $ (157) $ — $ 429 $ (186) Electricity (71) (52) (27) — 114 (36) — (272) (116) — 297 (91) Environmental & Other (2) (39) (3) — 44 — — (148) (2) — 137 (13) Other contracts — (1) — — — (1) — (19) — — — (19) Total $ (290) $ (162) $ (153) $ — $ 430 $ (175) $ (291) $ (606) $ (275) $ — $ 863 $ (309) Net Assets (Liabilities) at end of period $ 1,312 $ 486 $ 13 $ 653 $ (17) $ 2,447 $ 1,121 $ 436 $ 75 $ 549 $ 72 $ 2,253 Assets Current $ 223 $ 170 $ 106 $ — $ (326) $ 173 $ 215 $ 461 $ 247 $ — $ (613) $ 310 Noncurrent 1,379 478 60 653 (121) 2,449 1,197 581 103 549 (178) 2,252 Total Assets $ 1,602 $ 648 $ 166 $ 653 $ (447) $ 2,622 $ 1,412 $ 1,042 $ 350 $ 549 $ (791) $ 2,562 Liabilities Current $ (219) $ (129) $ (93) $ — $ 323 $ (118) $ (240) $ (462) $ (145) $ — $ 670 $ (177) Noncurrent (71) (33) (60) — 107 (57) (51) (144) (130) — 193 (132) Total Liabilities $ (290) $ (162) $ (153) $ — $ 430 $ (175) $ (291) $ (606) $ (275) $ — $ 863 $ (309) Net Assets (Liabilities) at end of period $ 1,312 $ 486 $ 13 $ 653 $ (17) $ 2,447 $ 1,121 $ 436 $ 75 $ 549 $ 72 $ 2,253 _______________________________________ (a) Amounts represent assets valued at NAV as a practical expedient for fair value. (b) Amounts represent the impact of master netting agreements that allow DTE Energy to net gain and loss positions and cash collateral held or placed with the same counterparties. (c) Amounts include $8 million and $11 million recorded in Restricted cash on DTE Energy's Consolidated Statements of Financial Position at December 31, 2024 and December 31, 2023, respectively. All other amounts are included in Cash and cash equivalents on DTE Energy's Consolidated Statements of Financial Position. (d) Excludes cash surrender value of life insurance investments and certain securities classified as held-to-maturity that are recorded at amortized cost and not material to the consolidated financial statements. (e) For contracts with a clearing agent, DTE Energy nets all activity across commodities. This can result in some individual commodities having a contra balance. The following table presents assets for DTE Electric measured and recorded at fair value on a recurring basis as of: December 31, 2024 December 31, 2023 Level 1 Level 2 Level 3 Other (a) Net Balance Level 1 Level 2 Level 3 Other (a) Net Balance (In millions) Assets Cash equivalents (b) $ 8 $ — $ — $ — $ 8 $ 11 $ — $ — $ — $ 11 Nuclear decommissioning trusts Equity securities 856 — — 147 1,003 776 — — 145 921 Fixed income securities 124 414 — 112 650 127 371 — 92 590 Private equity and other 16 — — 333 349 — — — 312 312 Hedge funds and similar investments 151 16 — 61 228 119 65 — — 184 Cash equivalents 26 — — — 26 34 — — — 34 Other investments Equity securities 26 — — — 26 21 — — — 21 Cash equivalents 19 — — — 19 11 — — — 11 Derivative assets — FTRs — — 9 — 9 — — 7 — 7 Total $ 1,226 $ 430 $ 9 $ 653 $ 2,318 $ 1,099 $ 436 $ 7 $ 549 $ 2,091 Assets Current $ 8 $ — $ 9 $ — $ 17 $ 11 $ — $ 7 $ — $ 18 Noncurrent 1,218 430 — 653 2,301 1,088 436 — 549 2,073 Total Assets $ 1,226 $ 430 $ 9 $ 653 $ 2,318 $ 1,099 $ 436 $ 7 $ 549 $ 2,091 _______________________________________ (a) Amounts represent assets valued at NAV as a practical expedient for fair value. (b) Amounts include $8 million and $11 million recorded in Restricted cash on DTE Electric's Consolidated Statements of Financial Position at December 31, 2024 and December 31, 2023, respectively. All other amounts are included in Cash and cash equivalents on DTE Electric's Consolidated Statements of Financial Position. Cash Equivalents Cash equivalents include investments with maturities of three months or less when purchased. The cash equivalents shown in the fair value table are comprised of short-term investments in money market funds. Nuclear Decommissioning Trusts and Other Investments The nuclear decommissioning trusts and other investments hold debt and equity securities directly and indirectly through commingled funds. Exchange-traded debt and equity securities held directly, as well as publicly traded commingled funds, are valued using quoted market prices in actively traded markets. Non-exchange traded fixed income securities are valued based upon quotations available from brokers or pricing services. Non-publicly traded commingled funds holding exchange-traded equity or debt securities are valued based on stated NAVs. There are no significant restrictions for these funds and investments may be redeemed with 7 to 65 days notice depending on the fund. There is no intention to sell the investment in these commingled funds. Private equity and other assets include a diversified group of funds that are primarily classified as NAV assets. These funds primarily invest in limited partnerships, including private equity, private real estate and private credit. Distributions are received through the liquidation of the underlying fund assets over the life of the funds. There are generally no redemption rights. The limited partner must hold the fund for its life or find a third-party buyer, which may need to be approved by the general partner. The funds are established with varied contractual durations generally in the range of 7 years to 12 years. The fund life can often be extended by several years by the general partner, and further extended with the approval of the limited partners. Unfunded commitments related to these investments totaled $120 million and $157 million as of December 31, 2024 and 2023, respectively. Hedge funds and similar investments utilize a diversified group of strategies that attempt to capture uncorrelated sources of return. These investments include publicly traded mutual funds that are valued using quoted prices in actively traded markets, as well as insurance-linked and asset-backed securities and that are valued using quotations from broker or pricing services and limited partnerships that are classified as NAV assets. For pricing the nuclear decommissioning trusts and other investments, a primary price source is identified by asset type, class, or issue for each security. The trustee monitors prices supplied by pricing services and may use a supplemental price source or change the primary source of a given security if the trustee determines that another price source is considered preferable. The Registrants have obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Derivative Assets and Liabilities Derivative assets and liabilities are comprised of physical and financial derivative contracts, including futures, forwards, options, and swaps that are both exchange-traded and over-the-counter traded contracts. Various inputs are used to value derivatives depending on the type of contract and availability of market data. Exchange-traded derivative contracts are valued using quoted prices in active markets. The Registrants consider the following criteria in determining whether a market is considered active: frequency in which pricing information is updated, variability in pricing between sources or over time, and the availability of public information. Other derivative contracts are valued based upon a variety of inputs including commodity market prices, broker quotes, interest rates, credit ratings, default rates, market-based seasonality, and basis differential factors. The Registrants monitor the prices that are supplied by brokers and pricing services and may use a supplemental price source or change the primary price source of an index if prices become unavailable or another price source is determined to be more representative of fair value. The Registrants have obtained an understanding of how these prices are derived. Additionally, the Registrants selectively corroborate the fair value of their transactions by comparison of market-based price sources. Mathematical valuation models are used for derivatives for which external market data is not readily observable, such as contracts which extend beyond the actively traded reporting period. The Registrants have established a Risk Management Committee whose responsibilities include directly or indirectly ensuring all valuation methods are applied in accordance with predefined policies. The development and maintenance of the Registrants' forward price curves has been assigned to DTE Energy's Risk Management Department, which is separate and distinct from the trading functions within DTE Energy. The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis for DTE Energy: Year Ended December 31, 2024 Year Ended December 31, 2023 Natural Gas Electricity Other Total Natural Gas Electricity Other Total (In millions) Net Assets (Liabilities) as of January 1 $ 22 $ 47 $ 6 $ 75 $ (255) $ (33) $ 11 $ (277) Transfers into Level 3 from Level 2 1 — — 1 — — — — Transfers from Level 3 into Level 2 — 74 — 74 17 — — 17 Total gains (losses) Included in earnings (a) 16 225 (1) 240 182 198 (1) 379 Recorded in Regulatory liabilities — — 21 21 — — 9 9 Purchases, issuances, and settlements: Settlements (57) (322) (19) (398) 78 (118) (13) (53) Net Assets (Liabilities) as of December 31 $ (18) $ 24 $ 7 $ 13 $ 22 $ 47 $ 6 $ 75 Total gains (losses) included in Net Income attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31 (a) $ (47) $ 118 $ (159) $ (88) $ 85 $ 151 $ (122) $ 114 Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31 $ — $ — $ 9 $ 9 $ — $ — $ 7 $ 7 _______________________________________ (a) Amounts are reflected in Operating Revenues — Non-utility operations and Fuel, purchased power, gas, and other — non-utility in DTE Energy's Consolidated Statements of Operations. The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis for DTE Electric: Year Ended December 31, 2024 2023 (In millions) Net Assets as of January 1 $ 7 $ 11 Total gains recorded in Regulatory liabilities 21 9 Purchases, issuances, and settlements: Settlements (19) (13) Net Assets as of December 31 $ 9 $ 7 Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31 $ 9 $ 7 Derivatives are transferred between levels primarily due to changes in the source data used to construct price curves as a result of changes in market liquidity. Transfers in and transfers out are reflected as if they had occurred at the beginning of the period. There were no transfers from or into Level 3 for DTE Electric during the years ended December 31, 2024 and 2023. The following tables present the unobservable inputs related to DTE Energy's Level 3 assets and liabilities: December 31, 2024 Commodity Contracts Derivative Assets Derivative Liabilities Valuation Techniques Unobservable Input Range Weighted Average (In millions) Natural Gas $ 105 $ (123) Discounted Cash Flow Forward basis price (per MMBtu) $ (1.24) — $ 9.96 /MMBtu $ (0.05) /MMBtu Electricity $ 51 $ (27) Discounted Cash Flow Forward basis price (per MWh) $ (16.34) — $ 17.28 /MWh $ (2.74) /MWh December 31, 2023 Commodity Contracts Derivative Assets Derivative Liabilities Valuation Techniques Unobservable Input Range Weighted Average (In millions) Natural Gas $ 179 $ (157) Discounted Cash Flow Forward basis price (per MMBtu) $ (1.57) — $ 6.27 /MMBtu $ (0.08) /MMBtu Electricity $ 163 $ (116) Discounted Cash Flow Forward basis price (per MWh) $ (18.49) — $ 15.47 /MWh $ (3.99) /MWh The unobservable inputs used in the fair value measurement of the electricity and natural gas commodity types consist of inputs that are less observable due in part to lack of available broker quotes, supported by little, if any, market activity at the measurement date or are based on internally developed models. Certain basis prices (i.e., the difference in pricing between two locations) included in the valuation of natural gas and electricity contracts were deemed unobservable. The weighted average price for unobservable inputs was calculated using the average of forward price curves for natural gas and electricity and the absolute value of monthly volumes. The inputs listed above would have had a direct impact on the fair values of the above security types if they were adjusted. A significant increase (decrease) in the basis price would have resulted in a higher (lower) fair value for long positions, with offsetting impacts to short positions. Fair Value of Financial Instruments The following table presents the carrying amount and fair value of financial instruments for DTE Energy: December 31, 2024 December 31, 2023 Carrying Fair Value Carrying Fair Value Amount Level 1 Level 2 Level 3 Amount Level 1 Level 2 Level 3 (In millions) Notes receivable (a) , excluding lessor finance leases $ 884 $ — $ — $ 904 $ 175 $ — $ — $ 181 Short-term borrowings $ 1,067 $ — $ 1,067 $ — $ 1,283 $ — $ 1,283 $ — Notes payable (b) $ 37 $ — $ — $ 37 $ 34 $ — $ — $ 34 Long-term debt (c) $ 21,963 $ 725 $ 18,283 $ 1,128 $ 19,546 $ 807 $ 16,178 $ 1,202 _______________________________________ (a) Current portion included in Current Assets — Other on DTE Energy's Consolidated Statements of Financial Position. Carrying value includes credit loss reserves on Notes receivable. (b) Included in Current Liabilities — Other and Other Liabilities — Other on DTE Energy's Consolidated Statements of Financial Position. (c) Includes debt due within one year and excludes finance lease obligations. Carrying value also includes unamortized debt discounts and issuance costs. The following table presents the carrying amount and fair value of financial instruments for DTE Electric: December 31, 2024 December 31, 2023 Carrying Fair Value Carrying Fair Value Amount Level 1 Level 2 Level 3 Amount Level 1 Level 2 Level 3 (In millions) Notes receivable — Other (a) $ 2 $ — $ — $ 2 $ 19 $ — $ — $ 19 Notes receivable — Affiliates 42 — — 42 — — — — Short-term borrowings — Other $ 666 $ — $ 666 $ — $ 385 $ — $ 385 $ — Notes payable (b) $ 35 $ — $ — $ 35 $ 33 $ — $ — $ 33 Long-term debt (c) $ 11,881 $ — $ 10,449 $ 127 $ 11,043 $ — $ 9,999 $ 126 _______________________________________ (a) Included in Current Assets — Other and Other Assets — Other on DTE Electric's Consolidated Statements of Financial Position. (b) Included in Current Liabilities — Other and Other Liabilities — Other on DTE Electric's Consolidated Statements of Financial Position. (c) Includes debt due within one year and excludes finance lease obligations. Carrying value also includes unamortized debt discounts and issuance costs. For further fair value information on financial and derivative instruments, see Note 12 to the Consolidated Financial Statements, "Financial and Other Derivative Instruments." Nuclear Decommissioning Trust Funds DTE Electric has a legal obligation to decommission its nuclear power plants following the expiration of its operating licenses. This obligation is reflected as an Asset retirement obligation on DTE Electric's Consolidated Statements of Financial Position. Rates approved by the MPSC provide for the recovery of decommissioning costs of Fermi 2 and the disposal of low-level radioactive waste. See Note 7 to the Consolidated Financial Statements, "Asset Retirement Obligations." The following table summarizes DTE Electric's fair value of the nuclear decommissioning trust fund assets: December 31, 2024 2023 (In millions) Fermi 2 $ 2,234 $ 2,026 Fermi 1 3 3 Low-level radioactive waste 19 12 $ 2,256 $ 2,041 The costs of securities sold are determined on the basis of specific identification. The following table sets forth DTE Electric's gains and losses and proceeds from the sale of securities by the nuclear decommissioning trust funds: Year Ended December 31, 2024 2023 2022 (In millions) Realized gains $ 47 $ 36 $ 71 Realized losses $ (27) $ (42) $ (53) Proceeds from sale of securities $ 555 $ 681 $ 879 Realized gains and losses from the sale of securities and unrealized gains and losses incurred by the Fermi 2 trust are recorded to Regulatory assets and the Nuclear decommissioning liability. Realized gains and losses from the sale of securities and unrealized gains and losses on the low-level radioactive waste funds are recorded to the Nuclear decommissioning liability. The following table sets forth DTE Electric's fair value and unrealized gains and losses for the nuclear decommissioning trust funds: December 31, 2024 December 31, 2023 Fair Unrealized Unrealized Losses Fair Unrealized Unrealized Losses (In millions) Equity securities $ 1,003 $ 558 $ (16) $ 921 $ 459 $ (11) Fixed income securities 650 16 (29) 590 8 (30) Private equity and other 349 106 (8) 312 74 (8) Hedge funds and similar investments 228 7 (5) 184 4 (9) Cash equivalents 26 — — 34 — — $ 2,256 $ 687 $ (58) $ 2,041 $ 545 $ (58) The following table summarizes the fair value of the fixed income securities held in nuclear decommissioning trust funds by contractual maturity: December 31, 2024 (In millions) Due within one year $ 18 Due after one through five years 105 Due after five through ten years 107 Due after ten years 308 $ 538 Fixed income securities held in nuclear decommissioning trust funds include $112 million of non-publicly traded commingled funds that do not have a contractual maturity date. Other Securities At December 31, 2024 and 2023, DTE Energy's securities included in Other investments on the Consolidated Statements of Financial Position consisted primarily of investments within DTE Energy's rabbi trust. The rabbi trust is comprised primarily of trading securities recorded at fair value, as well as debt securities classified as held-to-maturity and recorded at amortized cost. The trust was established to fund certain non-qualified pension benefits, and therefore changes in market value of the trading securities and interest on the held-to-maturity securities are recognized in earnings. Gains and losses are allocated from DTE Energy to DTE Electric and are included in Other Income or Other Expense, respectively, in the Registrants' Consolidated Statements of Operations. Gains (losses) related to the trading securities were immaterial for the years ended December 31, 2024, 2023, and 2022.

Financial and Other Derivative

Financial and Other Derivative Instruments	12 Months Ended
	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial and Other Derivative Instruments	FINANCIAL AND OTHER DERIVATIVE INSTRUMENTS The Registrants recognize all derivatives at their fair value as Derivative assets or liabilities on their respective Consolidated Statements of Financial Position unless they qualify for certain scope exceptions, including the normal purchases and normal sales exception. Further, derivatives that qualify and are designated for hedge accounting are classified as either hedges of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge); or as hedges of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge). For cash flow hedges, the derivative gain or loss is deferred in Accumulated other comprehensive income (loss) and later reclassified into earnings when the underlying transaction occurs. For fair value hedges, changes in fair values for the derivative and hedged item are recognized in earnings each period. For derivatives that do not qualify or are not designated for hedge accounting, changes in fair value are recognized in earnings each period. The Registrants' primary market risk exposure is associated with commodity prices, credit, and interest rates. The Registrants have risk management policies to monitor and manage market risks. The Registrants use derivative instruments to manage some of the exposure. DTE Energy uses derivative instruments for trading purposes in its Energy Trading segment. Contracts classified as derivative instruments include electricity, natural gas, oil, certain environmental contracts, forwards, futures, options, swaps, and foreign currency exchange contracts. Items not classified as derivatives include natural gas and environmental inventory, pipeline transportation contracts, some environmental contracts, and natural gas storage assets. DTE Electric — DTE Electric generates, purchases, distributes, and sells electricity. DTE Electric uses forward contracts to manage changes in the price of electricity and fuel. Substantially all of these contracts meet the normal purchases and normal sales exception and are therefore accounted for under the accrual method. Other derivative contracts are MTM and recoverable through the PSCR mechanism when settled. This results in the deferral of unrealized gains and losses as Regulatory assets or liabilities until realized. DTE Gas — DTE Gas purchases, stores, transports, distributes, and sells natural gas, and buys and sells transportation and storage capacity. DTE Gas has fixed-priced contracts for portions of its expected natural gas supply requirements through March 2027. Substantially all of these contracts meet the normal purchases and normal sales exception and are therefore accounted for under the accrual method. Forward transportation and storage contracts are generally not derivatives and are therefore accounted for under the accrual method. DTE Vantage — DTE Vantage manages and operates renewable gas recovery projects, power generation assets, and other customer specific energy solutions. Long-term contracts and hedging instruments are used in the marketing and management of the segment assets. These contracts and hedging instruments are generally not derivatives and are therefore accounted for under the accrual method. Energy Trading — Commodity Price Risk — Energy Trading markets and trades electricity, natural gas physical products, and energy financial instruments, and provides energy and asset management services utilizing energy commodity derivative instruments. Forwards, futures, options, and swap agreements are used to manage exposure to the risk of market price and volume fluctuations in its operations. These derivatives are accounted for by recording changes in fair value to earnings unless hedge accounting criteria are met. Energy Trading — Foreign Currency Exchange Risk — Energy Trading has foreign currency exchange forward contracts to economically hedge fixed Canadian dollar commitments existing under natural gas and power purchase and sale contracts and natural gas transportation contracts. Energy Trading enters into these contracts to mitigate price volatility with respect to fluctuations of the Canadian dollar relative to the U.S. dollar. These derivatives are accounted for by recording changes in fair value to earnings unless hedge accounting criteria are met. Corporate and Other — Interest Rate Risk — DTE Energy may use interest rate swaps, treasury locks, and other derivatives to hedge the risk associated with interest rate market volatility. Credit Risk — DTE Energy maintains credit policies that significantly minimize overall credit risk. These policies include an evaluation of potential customers’ and counterparties’ financial condition, including the viability of underlying productive assets, credit rating, collateral requirements, or other credit enhancements such as letters of credit or guarantees. DTE Energy generally uses standardized agreements that allow the netting of positive and negative transactions associated with a single counterparty. DTE Energy maintains a provision for credit losses based on factors surrounding the credit risk of its customers, historical trends, and other information. Based on DTE Energy's credit policies and its December 31, 2024 provision for credit losses, DTE Energy’s exposure to counterparty nonperformance is not expected to have a material adverse effect on DTE Energy's Consolidated Financial Statements. Derivative Activities DTE Energy manages its MTM risk on a portfolio basis based upon the delivery period of its contracts and the individual components of the risks within each contract. Accordingly, it records and manages the energy purchase and sale obligations under its contracts in separate components based on the commodity (e.g. electricity or natural gas), the product (e.g. electricity for delivery during peak or off-peak hours), the delivery location (e.g. by region), the risk profile (e.g. forward or option), and the delivery period (e.g. by month and year). The following describes the categories of activities represented by their operating characteristics and key risks: • Asset Optimization — Represents derivative activity associated with assets owned and contracted by DTE Energy, including forward natural gas purchases and sales, natural gas transportation, and storage capacity. Changes in the value of derivatives in this category typically economically offset changes in the value of underlying non-derivative positions, which do not qualify for fair value accounting. The difference in accounting treatment of derivatives in this category and the underlying non-derivative positions can result in significant earnings volatility. • Marketing and Origination — Represents derivative activity transacted by originating substantially hedged positions with wholesale energy marketers, producers, end-users, utilities, retail aggregators, and alternative energy suppliers. • Fundamentals Based Trading — Represents derivative activity transacted with the intent of taking a view, capturing market price changes, or putting capital at risk. This activity is speculative in nature as opposed to hedging an existing exposure. • Other — Includes derivative activity at DTE Electric related to FTRs. Changes in the value of derivative contracts at DTE Electric are recorded as Derivative assets or liabilities, with an offset to Regulatory assets or liabilities as the settlement value of these contracts will be included in the PSCR mechanism when realized. The following table presents the fair value of derivative instruments for DTE Energy: December 31, 2024 December 31, 2023 Derivative Derivative Derivative Derivative (In millions) Derivatives designated as hedging instruments Interest rate contracts $ 20 $ — $ — $ (16) Foreign currency exchange contracts — (1) — (2) Total derivatives designated as hedging instruments $ 20 $ (1) $ — $ (18) Derivatives not designated as hedging instruments Commodity contracts Natural gas $ 428 $ (410) $ 637 $ (615) Electricity 187 (150) 421 (388) Environmental & Other 58 (44) 139 (150) Foreign currency exchange contracts 1 — — (1) Total derivatives not designated as hedging instruments $ 674 $ (604) $ 1,197 $ (1,154) Current $ 488 $ (441) $ 910 $ (847) Noncurrent 206 (164) 287 (325) Total derivatives $ 694 $ (605) $ 1,197 $ (1,172) The fair value of derivative instruments at DTE Electric was $9 million and $7 million at December 31, 2024 and 2023, respectively, comprised of FTRs recorded to Current Assets — Other on the Consolidated Statements of Financial Position and not designated as hedging instruments. Certain of DTE Energy's derivative positions are subject to netting arrangements which provide for offsetting of asset and liability positions as well as related cash collateral. Such netting arrangements generally do not have restrictions. Under such netting arrangements, DTE Energy offsets the fair value of derivative instruments with cash collateral received or paid for those contracts executed with the same counterparty, which reduces DTE Energy's Total Assets and Liabilities. Cash collateral is allocated between the fair value of derivative instruments and customer accounts receivable and payable with the same counterparty on a pro-rata basis to the extent there is exposure. Any cash collateral remaining, after the exposure is netted to zero, is reflected in Accounts receivable and Accounts payable as collateral paid or received, respectively. DTE Energy also provides and receives collateral in the form of letters of credit which can be offset against net Derivative assets and liabilities as well as Accounts receivable and payable. DTE Energy had letters of credit of $1 million issued and outstanding at December 31, 2024 and $3 million at December 31, 2023, which could be used to offset net Derivative liabilities. There were no letters of credit received from third parties which could be used to offset net Derivative assets at December 31, 2024 and there were $10 million at December 31, 2023. Such balances of letters of credit are excluded from the tables below and are not netted with the recognized assets and liabilities in DTE Energy's Consolidated Statements of Financial Position. For contracts with certain clearing agents, the fair value of derivative instruments is netted against realized positions with the net balance reflected as either 1) a Derivative asset or liability or 2) an Account receivable or payable. Other than certain clearing agents, Accounts receivable and Accounts payable that are subject to netting arrangements have not been offset against the fair value of Derivative assets and liabilities. The following table presents net cash collateral offsetting arrangements for DTE Energy: December 31, 2024 2023 (In millions) Cash collateral netted against Derivative assets $ (17) $ — Cash collateral netted against Derivative liabilities — 72 Cash collateral recorded in Accounts receivable (a) 29 57 Cash collateral recorded in Accounts payable (a) (5) (3) Total net cash collateral posted (received) $ 7 $ 126 _______________________________________ (a) Amounts are recorded net by counterparty. The following table presents the netting offsets of Derivative assets and liabilities for DTE Energy: December 31, 2024 December 31, 2023 Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position (In millions) Derivative assets Commodity contracts (a) Natural gas $ 428 $ (285) $ 143 $ 637 $ (416) $ 221 Electricity 187 (116) 71 421 (243) 178 Environmental & Other 58 (46) 12 139 (132) 7 Interest rate contracts 20 — 20 — — — Foreign currency exchange contracts 1 — 1 — — — Total derivative assets $ 694 $ (447) $ 247 $ 1,197 $ (791) $ 406 Derivative liabilities Commodity contracts (a) Natural gas $ (410) $ 272 $ (138) $ (615) $ 429 $ (186) Electricity (150) 114 (36) (388) 297 (91) Environmental & Other (44) 44 — (150) 137 (13) Interest rate contracts — — — (16) — (16) Foreign currency exchange contracts (1) — (1) (3) — (3) Total derivative liabilities $ (605) $ 430 $ (175) $ (1,172) $ 863 $ (309) _______________________________________ (a) For contracts with a clearing agent, DTE Energy nets all activity across commodities. This can result in some individual commodities having a contra balance. The following table presents the netting offsets of Derivative assets and liabilities showing the reconciliation of derivative instruments to DTE Energy's Consolidated Statements of Financial Position: December 31, 2024 December 31, 2023 Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities Current Noncurrent Current Noncurrent Current Noncurrent Current Noncurrent (In millions) Total fair value of derivatives $ 488 $ 206 $ (441) $ (164) $ 910 $ 287 $ (847) $ (325) Counterparty netting (323) (107) 323 107 (613) (178) 613 178 Collateral adjustment (3) (14) — — — — 57 15 Total derivatives as reported $ 162 $ 85 $ (118) $ (57) $ 297 $ 109 $ (177) $ (132) The effect of derivatives not designated as hedging instruments on DTE Energy's Consolidated Statements of Operations is as follows: Location of Gain (Loss) Recognized in Income on Derivatives Gain (Loss) Recognized in Income on Derivatives for Years Ended December 31, 2024 2023 2022 (In millions) Commodity contracts Natural gas Operating Revenues — Non-utility operations $ (169) $ 153 $ (235) Natural gas Fuel, purchased power, gas, and other — non-utility 233 122 (108) Electricity Operating Revenues — Non-utility operations 266 105 221 Environmental & Other Operating Revenues — Non-utility operations 14 5 13 Foreign currency exchange contracts Operating Revenues — Non-utility operations 3 (2) 3 Total $ 347 $ 383 $ (106) Revenues and energy costs related to trading contracts are presented on a net basis in DTE Energy's Consolidated Statements of Operations. Commodity derivatives used for trading purposes, and financial non-trading commodity derivatives, are accounted for using the MTM method with unrealized and realized gains and losses recorded in Operating Revenues — Non-utility operations. Non-trading physical commodity sale and purchase derivative contracts are generally accounted for using the MTM method with unrealized and realized gains and losses for sales recorded in Operating Revenues — Non-utility operations and purchases recorded in Fuel, purchased power, gas, and other — non-utility. The following represents the cumulative gross volume of DTE Energy's derivative contracts outstanding as of December 31, 2024: Commodity Number of Units Natural gas (MMBtu) 2,061,711,943 Electricity (MWh) 39,109,082 Foreign currency exchange ($ CAD) 74,608,748 FTR (MWh) 65,874 Renewable Energy Certificates (MWh) 10,569,260 Carbon emissions (Metric Ton) 210,079 Interest rate contracts ($ USD) 700,000,000 Various subsidiaries and equity investees of DTE Energy have entered into derivative and non-derivative contracts which contain ratings triggers and are guaranteed by DTE Energy. These contracts contain provisions which allow the counterparties to require that DTE Energy post cash or letters of credit as collateral in the event that DTE Energy’s credit rating is downgraded below investment grade. Certain of these provisions (known as "hard triggers") state specific circumstances under which DTE Energy can be required to post collateral upon the occurrence of a credit downgrade, while other provisions (known as "soft triggers") are not as specific. For contracts with soft triggers, it is difficult to estimate the amount of collateral which may be requested by counterparties and/or which DTE Energy may ultimately be required to post. The amount of such collateral which could be requested fluctuates based on commodity prices (primarily natural gas, power, and environmental) and the provisions and maturities of the underlying transactions. As of December 31, 2024, DTE Energy's contractual obligation to post collateral in the form of cash or letters of credit in the event of a downgrade to below investment grade, under both hard trigger and soft trigger provisions, was $360 million. As of December 31, 2024, DTE Energy had $467 million of derivatives in net liability positions, for which hard triggers exist. There is no collateral that has been posted against such liabilities, including cash and letters of credit. Associated derivative net asset positions for which contractual offset exists were $402 million. The net remaining amount of $65 million is derived from the $360 million noted above.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Long-Term Debt	LONG-TERM DEBT Long-Term Debt DTE Energy's long-term debt outstanding and interest rates of debt outstanding at December 31 were: Interest Rate (a) Maturity Date 2024 2023 (In millions) Mortgage bonds, notes, and other DTE Energy debt, unsecured 4.2% 2025 — 2034 $ 6,380 $ 5,105 DTE Electric debt, principally secured 3.9% 2025 — 2053 11,270 10,370 DTE Gas debt, principally secured 4.3% 2025 — 2054 2,865 2,545 20,515 18,020 Unamortized debt discount (28) (26) Unamortized debt issuance costs (114) (100) Long-term debt due within one year (1,220) (2,075) $ 19,153 $ 15,819 Securitization bonds (b) DTE Electric securitization bonds 5.4% 2027 — 2038 $ 713 $ 777 Unamortized debt issuance costs (7) (8) Long-term debt due within one year (71) (64) $ 635 $ 705 Junior Subordinated Debentures Subordinated debentures 4.8% 2077 — 2081 $ 910 $ 910 Unamortized debt issuance costs (26) (27) $ 884 $ 883 _______________________________________ (a) Weighted average interest rate as of December 31, 2024. (b) Bonds are held by DTE Securitization I and DTE Securitization II, special purpose entities consolidated by DTE Electric. Refer to Note 1 to the Consolidated Financial Statements, “Organization and Basis of Presentation,” for additional information regarding these entities and restrictions related to the bonds. DTE Electric's long-term debt outstanding and interest rates of debt outstanding at December 31 were: Interest Rate (a) Maturity Date 2024 2023 (In millions) Mortgage bonds, notes, and other Long-term debt, principally secured 3.9% 2025 — 2053 $ 11,270 $ 10,370 Unamortized debt discount (22) (23) Unamortized debt issuance costs (73) (73) Long-term debt due within one year (350) (100) $ 10,825 $ 10,174 Securitization bonds (b) DTE Electric securitization bonds 5.4% 2027 — 2038 $ 713 $ 777 Unamortized debt issuance costs (7) (8) Long-term debt due within one year (71) (64) $ 635 $ 705 _______________________________________ (a) Weighted average interest rate as of December 31, 2024. (b) Bonds are held by DTE Securitization I and DTE Securitization II, special purpose entities consolidated by DTE Electric. Refer to Note 1 to the Consolidated Financial Statements, “Organization and Basis of Presentation,” for additional information regarding these entities and restrictions related to the bonds. Debt Issuances Refer to the table below for debt issued in 2024: Company Month Type Interest Rate Maturity Date Amount (In millions) DTE Energy February Senior notes (a) 5.10% 2029 $ 1,200 DTE Electric February Mortgage bonds (b) 4.85% 2026 500 DTE Electric February Mortgage bonds (b) 5.20% 2034 500 DTE Energy May Senior notes (c) 5.85% 2034 850 DTE Energy August Senior notes (d) 4.95% 2027 1,200 DTE Gas October Mortgage bonds (b) 4.87% 2034 160 DTE Gas October Mortgage bonds (b) 5.43% 2054 160 $ 4,570 _______________________________ (a) Proceeds used for the repayment of short-term borrowings and for general corporate purposes. (b) Proceeds used for the repayment of short-term borrowings, for capital expenditures, and for other general corporate purposes. (c) Proceeds used for the repayment of a portion of the $675 million 2016 Series C 2.53% Senior Notes due October 1, 2024, for repayment of a portion of the $1.3 billion 2019 Series F 4.22% Senior Notes due November 1, 2024, and for general corporate purposes. (d) Proceeds used for the repayment of a portion of the $1.3 billion 2019 Series F 4.22% Senior Notes due November 1, 2024 and for general corporate purposes. Debt Redemptions Refer to the table below for debt redeemed in 2024: Company Month Type Interest Rate Maturity Date Amount (In millions) DTE Electric March Mortgage Bonds 3.65% 2024 $ 100 DTE Electric June Securitization bonds 2.64% 2024 19 DTE Electric September Securitization bonds 5.97% 2024 24 DTE Energy October Senior notes 2.53% 2024 675 DTE Energy November Senior notes 4.22% 2024 1,300 DTE Electric December Securitization bonds 2.64% 2024 21 $ 2,139 Debt Maturities The following table shows the Registrants' scheduled debt maturities, excluding any unamortized discount on debt: 2025 2026 2027 2028 2029 2030 and Thereafter Total (In millions) DTE Energy (a)(b) $ 1,291 $ 1,351 $ 1,430 $ 1,737 $ 1,962 $ 14,367 $ 22,138 DTE Electric (b) $ 421 $ 751 $ 39 $ 617 $ 103 $ 10,052 $ 11,983 _______________________________________ (a) Amounts include DTE Electric's scheduled debt maturities. (b) Amounts include DTE Securitization I and DTE Securitization II scheduled debt maturities. The following table shows scheduled interest payments related to the Registrants' long-term debt: 2025 2026 2027 2028 2029 2030 and Thereafter Total (In millions) DTE Energy (a)(b) $ 905 $ 888 $ 806 $ 742 $ 664 $ 8,467 $ 12,472 DTE Electric (b) $ 477 $ 466 $ 434 $ 426 $ 418 $ 4,874 $ 7,095 _______________________________________ (a) Amounts include DTE Electric's scheduled interest payments. (b) Amounts include DTE Securitization I and DTE Securitization II scheduled interest payments. Junior Subordinated Debentures DTE Energy has the right to defer interest payments on the Junior Subordinated Debentures. Should DTE Energy exercise this right, it cannot declare or pay dividends on, or redeem, purchase or acquire, any of its capital stock during the deferral period. Any deferred interest payments will bear additional interest at the rate associated with the related debt issue. As of December 31, 2024, no interest payments have been deferred on the Junior Subordinated Debentures. Cross Default Provisions Substantially all of the net utility properties of DTE Electric and DTE Gas are subject to the lien of mortgages. Should DTE Electric or DTE Gas fail to timely pay their indebtedness under these mortgages, such failure may create cross defaults in the indebtedness of DTE Energy.

Preferred and Preference Securi

Preferred and Preference Securities	12 Months Ended
	Dec. 31, 2024
Preferred Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Preferred and Preference Securities	PREFERRED AND PREFERENCE SECURITIES As of December 31, 2024, the amount of authorized and unissued stock is as follows: Company Type of Stock Par Value Shares Authorized DTE Energy Preferred $ — 5,000,000 DTE Electric Preferred $ 100 6,747,484 DTE Electric Preference $ 1 30,000,000 DTE Gas Preferred $ 1 7,000,000 DTE Gas Preference $ 1 4,000,000

Short-Term Credit Arrangements

Short-Term Credit Arrangements and Borrowings	12 Months Ended
	Dec. 31, 2024
Short-Term Debt [Abstract]
Short-Term Credit Arrangements and Borrowings	SHORT-TERM CREDIT ARRANGEMENTS AND BORROWINGS DTE Energy, DTE Electric, and DTE Gas have unsecured revolving credit agreements that can be used for general corporate borrowings, but are intended to provide liquidity support for each of the companies’ commercial paper programs. Borrowings under the revolvers are available at prevailing short-term interest rates. Letters of credit of up to $500 million may also be issued under the DTE Energy revolver. DTE Energy and DTE Electric also have other facilities to support letter of credit issuance and increase liquidity. The unsecured revolving credit agreements require a total funded debt to capitalization ratio of no more than 0.70 to 1 for DTE Energy and 0.65 to 1 for DTE Electric and DTE Gas. In the agreements, "total funded debt" means all indebtedness of each respective company and their consolidated subsidiaries, including finance lease obligations, hedge agreements, and guarantees of third parties’ debt, but excluding contingent obligations, nonrecourse and junior subordinated debt, and certain equity-linked securities and, except for calculations at the end of the second quarter, certain DTE Gas short-term debt. "Capitalization" means the sum of (a) total funded debt plus (b) "consolidated net worth," which is equal to consolidated total equity of each respective company and their consolidated subsidiaries (excluding pension effects under certain FASB statements), as determined in accordance with accounting principles generally accepted in the United States of America. At December 31, 2024, the total funded debt to total capitalization ratios for DTE Energy, DTE Electric, and DTE Gas were 0.65 to 1, 0.52 to 1, and 0.49 to 1, respectively, and were in compliance with this financial covenant. The availability under the facilities in place at December 31, 2024 is shown in the following table: DTE Energy DTE Electric DTE Gas Total (In millions) Unsecured revolving credit facility, expiring October 2029 $ 1,500 $ 800 $ 300 $ 2,600 Unsecured letter of credit facility, expiring June 2025 (a) 175 — — 175 Unsecured letter of credit facility, expiring February 2025 150 — — 150 Unsecured letter of credit facilities, expiring June 2026 100 — — 100 Unsecured letter of credit facility (b) 50 — — 50 Unsecured letter of credit facility (c) — 125 — 125 1,975 925 300 3,200 Amounts outstanding at December 31, 2024 Commercial paper issuances 392 666 9 1,067 Letters of credit 117 124 — 241 509 790 9 1,308 Net availability at December 31, 2024 $ 1,466 $ 135 $ 291 $ 1,892 _______________________________________ (a) Uncommitted letter of credit facility. (b) Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. (c) Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. DTE Energy may also utilize availability under this facility. For both DTE Energy and DTE Electric, the weighted average interest rate for short-term borrowings was 4.7% and 5.6% at December 31, 2024 and 2023, respectively. For information related to affiliate short-term borrowings, refer to Note 22 of the Consolidated Financial Statements, "Related Party Transactions." In conjunction with maintaining certain exchange-traded risk management positions, DTE Energy may be required to post collateral with a clearing agent. DTE Energy has a demand financing agreement with its clearing agent which allows the right of setoff with posted collateral. At December 31, 2024, the capacity under the facility was $200 million. The amounts outstanding under demand financing agreements were $49 million and $152 million at December 31, 2024 and 2023, respectively, and were fully offset by posted collateral. Dividend Restrictions Certain of DTE Energy’s credit facilities contain a provision requiring DTE Energy to maintain a total funded debt to capitalization ratio, as defined in the agreements, of no more than 0.70 to 1, which has the effect of limiting the amount of dividends DTE Energy can pay in order to maintain compliance with this provision. At December 31, 2024, the effect of this provision was a restriction on dividend payments to no more than $2.5 billion of DTE Energy's Retained earnings of $4.9 billion. There are no other effective limitations with respect to DTE Energy’s ability to pay dividends.

Leases

Leases	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Leases	LEASES Lessee Leases at DTE Energy and DTE Electric are primarily comprised of various forms of certain easement leases, coal railcars, building equipment, and computer hardware, leases with terms ranging from approximately 1 to 52 years. A lease is deemed to exist when the Registrants have the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration paid. The right to control is deemed to occur when the Registrants have the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. Lease liabilities are determined utilizing a discount rate to determine the present values of lease payments. Topic 842 requires the use of the rate implicit in the lease when it is readily determinable. When the rate implicit in the lease is not readily determinable, the incremental borrowing rate is used. The Registrants have determined their respective incremental borrowing rates based upon the rate of interest that would have been paid on a collateralized basis over similar tenors to that of the leases. The incremental borrowing rates for DTE Electric and DTE Gas have been determined utilizing respective secured borrowing rates for first mortgage bonds with like tenors of remaining lease terms. Incremental borrowing rates for non-utility entities have been determined utilizing an implied secured borrowing rate based upon an unsecured rate for a similar tenor of remaining lease terms, which is then adjusted for the estimated impact of collateral. Certain leases of the Registrants contain escalation clauses whereby the payments are adjusted for consumer price or labor indices. The Registrants have leases with non-index based escalation clauses for percentage increases. DTE Energy also has leases with variable payments based upon usage of, or revenues associated with, the leased assets. DTE Electric also has leases with variable payments based upon the usage of the leased assets. Certain leases of easements and coal railcars contain provisions whereby the Registrants have the option to terminate the lease agreement by giving notice of such termination during the time frames specified in the respective lease. The Registrants have considered such provisions in the determination of the lease term when it is reasonably certain that the lease would be terminated. The Registrants have certain leases which contain purchase options. Based upon the nature of the leased property and terms of the purchase options, the Registrants have determined it is not reasonably certain that such purchase options will be utilized. Thus, the impact of the purchase options has not been included in the determination of right-of-use assets and lease liabilities for the subject leases. The Registrants have certain leases which contain renewal options. Where the renewal options were deemed reasonably certain to occur, the impacts of such options were included in the determination of the right of use assets and lease liabilities. The Registrants have agreements with lease and non-lease components, which are generally accounted for separately. Consideration in a lease is allocated between lease and non-lease components based upon the estimated relative standalone prices. The Registrants have certain coal railcar leases for which non-lease and lease components are accounted for as a single lease component, as permitted under Topic 842. The following is a summary of the components of lease cost for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Operating lease cost $ 26 $ 22 $ 18 $ 22 $ 17 $ 12 Finance lease cost: Amortization of right-of-use assets 4 7 7 3 6 6 Interest of lease liabilities 1 — 1 1 — — Total finance lease cost 5 7 8 4 6 6 Variable lease cost 17 13 9 — — — Short-term lease cost 18 12 19 10 4 10 $ 66 $ 54 $ 54 $ 36 $ 27 $ 28 The Registrants have elected not to apply the recognition requirements of Topic 842 to leases with a term of 12 months or less. DTE Energy and DTE Electric record operating, variable, and short-term lease costs as Operating Expenses on the Consolidated Statements of Operations, except for certain amounts that may be capitalized to Other Assets. The following is a summary of other information related to leases for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Supplemental Cash Flows Information Cash paid for amounts included in the measurement of these liabilities: Operating cash flows for finance leases $ 9 $ 9 $ 8 $ 7 $ 7 $ 7 Operating cash flows for operating leases $ 19 $ 19 $ 17 $ 15 $ 15 $ 12 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 75 $ 61 $ 5 $ 74 $ 61 $ 2 Finance leases $ 16 $ 5 $ 3 $ 14 $ 5 $ 1 Weighted Average Remaining Lease Term (Years) Operating leases 23.3 18.7 12.8 24.8 19.8 11.1 Finance leases 7.4 8.9 8.2 4.0 4.5 1.1 Weighted Average Discount Rate Operating leases 4.8 % 4.4 % 3.7 % 4.9 % 4.5 % 3.4 % Finance leases 4.6 % 4.0 % 2.4 % 5.8 % 5.4 % 1.0 % The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2024 are as follows: DTE Energy DTE Electric Operating Leases Finance Leases Operating Leases Finance Leases (In millions) 2025 $ 22 $ 5 $ 18 $ 4 2026 22 4 19 3 2027 22 4 19 3 2028 20 4 18 3 2029 16 1 13 — 2030 and thereafter 264 7 241 — Total future minimum lease payments 366 25 328 13 Imputed interest (178) (2) (168) (1) Lease liabilities $ 188 $ 23 $ 160 $ 12 Finance leases reported on the Consolidated Statements of Financial Position of the Registrants are as follows for the years ended December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Right-of-use assets, within Property, plant, and equipment, net $ 23 $ 18 $ 12 $ 6 Current lease liabilities, within Current portion of long-term debt $ 5 $ 3 $ 4 $ 2 Long-term lease liabilities $ 18 $ 13 $ 8 $ 4 Lessor DTE Energy leases various assets under operating leases for a pipeline, energy facilities and related equipment. Such leases are comprised of both fixed payments and variable payments which are contingent on volumes, with terms ranging from 9 to 24 years. Generally, the operating leases do not have renewal provisions or options to purchase the assets at the end of the lease. The operating leases generally do not have termination for convenience provisions. Termination may be allowed under specific circumstances stated in the lease contract, such as under an event of default. Certain of the finance and operating leases have lease terms that extend to the end of the estimated economic life of the leased assets, thereby resulting in no residual value. Any remaining residual values under the finance and operating leases are expected to be recovered through rates, renewals or new lease contracts. Residual values have been determined using the estimated economic life of the leased assets. The finance and operating leases do not contain residual value guarantees. Certain of the operating leases have both lease and non-lease components. The lease and non-lease components are allocated based upon estimated relative standalone selling prices. A lease is deemed to exist when the Registrants have provided other parties with the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration received. The right to control is deemed to occur when the Registrants have provided other parties with the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. DTE Energy’s lease income associated with operating leases was included on the Consolidated Statements of Operations for the years ended December 31: 2024 2023 2022 (In millions) Fixed payments $ 15 $ 15 $ 15 Variable payments 45 44 67 $ 60 $ 59 $ 82 DTE Energy’s minimum future rental revenues under operating leases for remaining periods as of December 31, 2024 are as follows: DTE Energy (In millions) 2025 $ 14 2026 11 2027 10 2028 6 2029 6 2030 and thereafter 29 $ 76 Depreciation expense associated with DTE Energy's property under operating leases was $9 million, $8 million, and $11 million for the years ended December 31, 2024, 2023, and 2022, respectively. The following is a summary of property under operating leases for DTE Energy as of December 31: 2024 2023 (In millions) Gross property under operating leases $ 227 $ 228 Accumulated amortization of property under operating leases $ 118 $ 118
Leases	LEASES Lessee Leases at DTE Energy and DTE Electric are primarily comprised of various forms of certain easement leases, coal railcars, building equipment, and computer hardware, leases with terms ranging from approximately 1 to 52 years. A lease is deemed to exist when the Registrants have the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration paid. The right to control is deemed to occur when the Registrants have the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. Lease liabilities are determined utilizing a discount rate to determine the present values of lease payments. Topic 842 requires the use of the rate implicit in the lease when it is readily determinable. When the rate implicit in the lease is not readily determinable, the incremental borrowing rate is used. The Registrants have determined their respective incremental borrowing rates based upon the rate of interest that would have been paid on a collateralized basis over similar tenors to that of the leases. The incremental borrowing rates for DTE Electric and DTE Gas have been determined utilizing respective secured borrowing rates for first mortgage bonds with like tenors of remaining lease terms. Incremental borrowing rates for non-utility entities have been determined utilizing an implied secured borrowing rate based upon an unsecured rate for a similar tenor of remaining lease terms, which is then adjusted for the estimated impact of collateral. Certain leases of the Registrants contain escalation clauses whereby the payments are adjusted for consumer price or labor indices. The Registrants have leases with non-index based escalation clauses for percentage increases. DTE Energy also has leases with variable payments based upon usage of, or revenues associated with, the leased assets. DTE Electric also has leases with variable payments based upon the usage of the leased assets. Certain leases of easements and coal railcars contain provisions whereby the Registrants have the option to terminate the lease agreement by giving notice of such termination during the time frames specified in the respective lease. The Registrants have considered such provisions in the determination of the lease term when it is reasonably certain that the lease would be terminated. The Registrants have certain leases which contain purchase options. Based upon the nature of the leased property and terms of the purchase options, the Registrants have determined it is not reasonably certain that such purchase options will be utilized. Thus, the impact of the purchase options has not been included in the determination of right-of-use assets and lease liabilities for the subject leases. The Registrants have certain leases which contain renewal options. Where the renewal options were deemed reasonably certain to occur, the impacts of such options were included in the determination of the right of use assets and lease liabilities. The Registrants have agreements with lease and non-lease components, which are generally accounted for separately. Consideration in a lease is allocated between lease and non-lease components based upon the estimated relative standalone prices. The Registrants have certain coal railcar leases for which non-lease and lease components are accounted for as a single lease component, as permitted under Topic 842. The following is a summary of the components of lease cost for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Operating lease cost $ 26 $ 22 $ 18 $ 22 $ 17 $ 12 Finance lease cost: Amortization of right-of-use assets 4 7 7 3 6 6 Interest of lease liabilities 1 — 1 1 — — Total finance lease cost 5 7 8 4 6 6 Variable lease cost 17 13 9 — — — Short-term lease cost 18 12 19 10 4 10 $ 66 $ 54 $ 54 $ 36 $ 27 $ 28 The Registrants have elected not to apply the recognition requirements of Topic 842 to leases with a term of 12 months or less. DTE Energy and DTE Electric record operating, variable, and short-term lease costs as Operating Expenses on the Consolidated Statements of Operations, except for certain amounts that may be capitalized to Other Assets. The following is a summary of other information related to leases for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Supplemental Cash Flows Information Cash paid for amounts included in the measurement of these liabilities: Operating cash flows for finance leases $ 9 $ 9 $ 8 $ 7 $ 7 $ 7 Operating cash flows for operating leases $ 19 $ 19 $ 17 $ 15 $ 15 $ 12 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 75 $ 61 $ 5 $ 74 $ 61 $ 2 Finance leases $ 16 $ 5 $ 3 $ 14 $ 5 $ 1 Weighted Average Remaining Lease Term (Years) Operating leases 23.3 18.7 12.8 24.8 19.8 11.1 Finance leases 7.4 8.9 8.2 4.0 4.5 1.1 Weighted Average Discount Rate Operating leases 4.8 % 4.4 % 3.7 % 4.9 % 4.5 % 3.4 % Finance leases 4.6 % 4.0 % 2.4 % 5.8 % 5.4 % 1.0 % The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2024 are as follows: DTE Energy DTE Electric Operating Leases Finance Leases Operating Leases Finance Leases (In millions) 2025 $ 22 $ 5 $ 18 $ 4 2026 22 4 19 3 2027 22 4 19 3 2028 20 4 18 3 2029 16 1 13 — 2030 and thereafter 264 7 241 — Total future minimum lease payments 366 25 328 13 Imputed interest (178) (2) (168) (1) Lease liabilities $ 188 $ 23 $ 160 $ 12 Finance leases reported on the Consolidated Statements of Financial Position of the Registrants are as follows for the years ended December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Right-of-use assets, within Property, plant, and equipment, net $ 23 $ 18 $ 12 $ 6 Current lease liabilities, within Current portion of long-term debt $ 5 $ 3 $ 4 $ 2 Long-term lease liabilities $ 18 $ 13 $ 8 $ 4 Lessor DTE Energy leases various assets under operating leases for a pipeline, energy facilities and related equipment. Such leases are comprised of both fixed payments and variable payments which are contingent on volumes, with terms ranging from 9 to 24 years. Generally, the operating leases do not have renewal provisions or options to purchase the assets at the end of the lease. The operating leases generally do not have termination for convenience provisions. Termination may be allowed under specific circumstances stated in the lease contract, such as under an event of default. Certain of the finance and operating leases have lease terms that extend to the end of the estimated economic life of the leased assets, thereby resulting in no residual value. Any remaining residual values under the finance and operating leases are expected to be recovered through rates, renewals or new lease contracts. Residual values have been determined using the estimated economic life of the leased assets. The finance and operating leases do not contain residual value guarantees. Certain of the operating leases have both lease and non-lease components. The lease and non-lease components are allocated based upon estimated relative standalone selling prices. A lease is deemed to exist when the Registrants have provided other parties with the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration received. The right to control is deemed to occur when the Registrants have provided other parties with the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. DTE Energy’s lease income associated with operating leases was included on the Consolidated Statements of Operations for the years ended December 31: 2024 2023 2022 (In millions) Fixed payments $ 15 $ 15 $ 15 Variable payments 45 44 67 $ 60 $ 59 $ 82 DTE Energy’s minimum future rental revenues under operating leases for remaining periods as of December 31, 2024 are as follows: DTE Energy (In millions) 2025 $ 14 2026 11 2027 10 2028 6 2029 6 2030 and thereafter 29 $ 76 Depreciation expense associated with DTE Energy's property under operating leases was $9 million, $8 million, and $11 million for the years ended December 31, 2024, 2023, and 2022, respectively. The following is a summary of property under operating leases for DTE Energy as of December 31: 2024 2023 (In millions) Gross property under operating leases $ 227 $ 228 Accumulated amortization of property under operating leases $ 118 $ 118
Leases	LEASES Lessee Leases at DTE Energy and DTE Electric are primarily comprised of various forms of certain easement leases, coal railcars, building equipment, and computer hardware, leases with terms ranging from approximately 1 to 52 years. A lease is deemed to exist when the Registrants have the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration paid. The right to control is deemed to occur when the Registrants have the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. Lease liabilities are determined utilizing a discount rate to determine the present values of lease payments. Topic 842 requires the use of the rate implicit in the lease when it is readily determinable. When the rate implicit in the lease is not readily determinable, the incremental borrowing rate is used. The Registrants have determined their respective incremental borrowing rates based upon the rate of interest that would have been paid on a collateralized basis over similar tenors to that of the leases. The incremental borrowing rates for DTE Electric and DTE Gas have been determined utilizing respective secured borrowing rates for first mortgage bonds with like tenors of remaining lease terms. Incremental borrowing rates for non-utility entities have been determined utilizing an implied secured borrowing rate based upon an unsecured rate for a similar tenor of remaining lease terms, which is then adjusted for the estimated impact of collateral. Certain leases of the Registrants contain escalation clauses whereby the payments are adjusted for consumer price or labor indices. The Registrants have leases with non-index based escalation clauses for percentage increases. DTE Energy also has leases with variable payments based upon usage of, or revenues associated with, the leased assets. DTE Electric also has leases with variable payments based upon the usage of the leased assets. Certain leases of easements and coal railcars contain provisions whereby the Registrants have the option to terminate the lease agreement by giving notice of such termination during the time frames specified in the respective lease. The Registrants have considered such provisions in the determination of the lease term when it is reasonably certain that the lease would be terminated. The Registrants have certain leases which contain purchase options. Based upon the nature of the leased property and terms of the purchase options, the Registrants have determined it is not reasonably certain that such purchase options will be utilized. Thus, the impact of the purchase options has not been included in the determination of right-of-use assets and lease liabilities for the subject leases. The Registrants have certain leases which contain renewal options. Where the renewal options were deemed reasonably certain to occur, the impacts of such options were included in the determination of the right of use assets and lease liabilities. The Registrants have agreements with lease and non-lease components, which are generally accounted for separately. Consideration in a lease is allocated between lease and non-lease components based upon the estimated relative standalone prices. The Registrants have certain coal railcar leases for which non-lease and lease components are accounted for as a single lease component, as permitted under Topic 842. The following is a summary of the components of lease cost for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Operating lease cost $ 26 $ 22 $ 18 $ 22 $ 17 $ 12 Finance lease cost: Amortization of right-of-use assets 4 7 7 3 6 6 Interest of lease liabilities 1 — 1 1 — — Total finance lease cost 5 7 8 4 6 6 Variable lease cost 17 13 9 — — — Short-term lease cost 18 12 19 10 4 10 $ 66 $ 54 $ 54 $ 36 $ 27 $ 28 The Registrants have elected not to apply the recognition requirements of Topic 842 to leases with a term of 12 months or less. DTE Energy and DTE Electric record operating, variable, and short-term lease costs as Operating Expenses on the Consolidated Statements of Operations, except for certain amounts that may be capitalized to Other Assets. The following is a summary of other information related to leases for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Supplemental Cash Flows Information Cash paid for amounts included in the measurement of these liabilities: Operating cash flows for finance leases $ 9 $ 9 $ 8 $ 7 $ 7 $ 7 Operating cash flows for operating leases $ 19 $ 19 $ 17 $ 15 $ 15 $ 12 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 75 $ 61 $ 5 $ 74 $ 61 $ 2 Finance leases $ 16 $ 5 $ 3 $ 14 $ 5 $ 1 Weighted Average Remaining Lease Term (Years) Operating leases 23.3 18.7 12.8 24.8 19.8 11.1 Finance leases 7.4 8.9 8.2 4.0 4.5 1.1 Weighted Average Discount Rate Operating leases 4.8 % 4.4 % 3.7 % 4.9 % 4.5 % 3.4 % Finance leases 4.6 % 4.0 % 2.4 % 5.8 % 5.4 % 1.0 % The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2024 are as follows: DTE Energy DTE Electric Operating Leases Finance Leases Operating Leases Finance Leases (In millions) 2025 $ 22 $ 5 $ 18 $ 4 2026 22 4 19 3 2027 22 4 19 3 2028 20 4 18 3 2029 16 1 13 — 2030 and thereafter 264 7 241 — Total future minimum lease payments 366 25 328 13 Imputed interest (178) (2) (168) (1) Lease liabilities $ 188 $ 23 $ 160 $ 12 Finance leases reported on the Consolidated Statements of Financial Position of the Registrants are as follows for the years ended December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Right-of-use assets, within Property, plant, and equipment, net $ 23 $ 18 $ 12 $ 6 Current lease liabilities, within Current portion of long-term debt $ 5 $ 3 $ 4 $ 2 Long-term lease liabilities $ 18 $ 13 $ 8 $ 4 Lessor DTE Energy leases various assets under operating leases for a pipeline, energy facilities and related equipment. Such leases are comprised of both fixed payments and variable payments which are contingent on volumes, with terms ranging from 9 to 24 years. Generally, the operating leases do not have renewal provisions or options to purchase the assets at the end of the lease. The operating leases generally do not have termination for convenience provisions. Termination may be allowed under specific circumstances stated in the lease contract, such as under an event of default. Certain of the finance and operating leases have lease terms that extend to the end of the estimated economic life of the leased assets, thereby resulting in no residual value. Any remaining residual values under the finance and operating leases are expected to be recovered through rates, renewals or new lease contracts. Residual values have been determined using the estimated economic life of the leased assets. The finance and operating leases do not contain residual value guarantees. Certain of the operating leases have both lease and non-lease components. The lease and non-lease components are allocated based upon estimated relative standalone selling prices. A lease is deemed to exist when the Registrants have provided other parties with the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration received. The right to control is deemed to occur when the Registrants have provided other parties with the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. DTE Energy’s lease income associated with operating leases was included on the Consolidated Statements of Operations for the years ended December 31: 2024 2023 2022 (In millions) Fixed payments $ 15 $ 15 $ 15 Variable payments 45 44 67 $ 60 $ 59 $ 82 DTE Energy’s minimum future rental revenues under operating leases for remaining periods as of December 31, 2024 are as follows: DTE Energy (In millions) 2025 $ 14 2026 11 2027 10 2028 6 2029 6 2030 and thereafter 29 $ 76 Depreciation expense associated with DTE Energy's property under operating leases was $9 million, $8 million, and $11 million for the years ended December 31, 2024, 2023, and 2022, respectively. The following is a summary of property under operating leases for DTE Energy as of December 31: 2024 2023 (In millions) Gross property under operating leases $ 227 $ 228 Accumulated amortization of property under operating leases $ 118 $ 118
Leases	LEASES Lessee Leases at DTE Energy and DTE Electric are primarily comprised of various forms of certain easement leases, coal railcars, building equipment, and computer hardware, leases with terms ranging from approximately 1 to 52 years. A lease is deemed to exist when the Registrants have the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration paid. The right to control is deemed to occur when the Registrants have the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. Lease liabilities are determined utilizing a discount rate to determine the present values of lease payments. Topic 842 requires the use of the rate implicit in the lease when it is readily determinable. When the rate implicit in the lease is not readily determinable, the incremental borrowing rate is used. The Registrants have determined their respective incremental borrowing rates based upon the rate of interest that would have been paid on a collateralized basis over similar tenors to that of the leases. The incremental borrowing rates for DTE Electric and DTE Gas have been determined utilizing respective secured borrowing rates for first mortgage bonds with like tenors of remaining lease terms. Incremental borrowing rates for non-utility entities have been determined utilizing an implied secured borrowing rate based upon an unsecured rate for a similar tenor of remaining lease terms, which is then adjusted for the estimated impact of collateral. Certain leases of the Registrants contain escalation clauses whereby the payments are adjusted for consumer price or labor indices. The Registrants have leases with non-index based escalation clauses for percentage increases. DTE Energy also has leases with variable payments based upon usage of, or revenues associated with, the leased assets. DTE Electric also has leases with variable payments based upon the usage of the leased assets. Certain leases of easements and coal railcars contain provisions whereby the Registrants have the option to terminate the lease agreement by giving notice of such termination during the time frames specified in the respective lease. The Registrants have considered such provisions in the determination of the lease term when it is reasonably certain that the lease would be terminated. The Registrants have certain leases which contain purchase options. Based upon the nature of the leased property and terms of the purchase options, the Registrants have determined it is not reasonably certain that such purchase options will be utilized. Thus, the impact of the purchase options has not been included in the determination of right-of-use assets and lease liabilities for the subject leases. The Registrants have certain leases which contain renewal options. Where the renewal options were deemed reasonably certain to occur, the impacts of such options were included in the determination of the right of use assets and lease liabilities. The Registrants have agreements with lease and non-lease components, which are generally accounted for separately. Consideration in a lease is allocated between lease and non-lease components based upon the estimated relative standalone prices. The Registrants have certain coal railcar leases for which non-lease and lease components are accounted for as a single lease component, as permitted under Topic 842. The following is a summary of the components of lease cost for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Operating lease cost $ 26 $ 22 $ 18 $ 22 $ 17 $ 12 Finance lease cost: Amortization of right-of-use assets 4 7 7 3 6 6 Interest of lease liabilities 1 — 1 1 — — Total finance lease cost 5 7 8 4 6 6 Variable lease cost 17 13 9 — — — Short-term lease cost 18 12 19 10 4 10 $ 66 $ 54 $ 54 $ 36 $ 27 $ 28 The Registrants have elected not to apply the recognition requirements of Topic 842 to leases with a term of 12 months or less. DTE Energy and DTE Electric record operating, variable, and short-term lease costs as Operating Expenses on the Consolidated Statements of Operations, except for certain amounts that may be capitalized to Other Assets. The following is a summary of other information related to leases for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Supplemental Cash Flows Information Cash paid for amounts included in the measurement of these liabilities: Operating cash flows for finance leases $ 9 $ 9 $ 8 $ 7 $ 7 $ 7 Operating cash flows for operating leases $ 19 $ 19 $ 17 $ 15 $ 15 $ 12 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 75 $ 61 $ 5 $ 74 $ 61 $ 2 Finance leases $ 16 $ 5 $ 3 $ 14 $ 5 $ 1 Weighted Average Remaining Lease Term (Years) Operating leases 23.3 18.7 12.8 24.8 19.8 11.1 Finance leases 7.4 8.9 8.2 4.0 4.5 1.1 Weighted Average Discount Rate Operating leases 4.8 % 4.4 % 3.7 % 4.9 % 4.5 % 3.4 % Finance leases 4.6 % 4.0 % 2.4 % 5.8 % 5.4 % 1.0 % The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2024 are as follows: DTE Energy DTE Electric Operating Leases Finance Leases Operating Leases Finance Leases (In millions) 2025 $ 22 $ 5 $ 18 $ 4 2026 22 4 19 3 2027 22 4 19 3 2028 20 4 18 3 2029 16 1 13 — 2030 and thereafter 264 7 241 — Total future minimum lease payments 366 25 328 13 Imputed interest (178) (2) (168) (1) Lease liabilities $ 188 $ 23 $ 160 $ 12 Finance leases reported on the Consolidated Statements of Financial Position of the Registrants are as follows for the years ended December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Right-of-use assets, within Property, plant, and equipment, net $ 23 $ 18 $ 12 $ 6 Current lease liabilities, within Current portion of long-term debt $ 5 $ 3 $ 4 $ 2 Long-term lease liabilities $ 18 $ 13 $ 8 $ 4 Lessor DTE Energy leases various assets under operating leases for a pipeline, energy facilities and related equipment. Such leases are comprised of both fixed payments and variable payments which are contingent on volumes, with terms ranging from 9 to 24 years. Generally, the operating leases do not have renewal provisions or options to purchase the assets at the end of the lease. The operating leases generally do not have termination for convenience provisions. Termination may be allowed under specific circumstances stated in the lease contract, such as under an event of default. Certain of the finance and operating leases have lease terms that extend to the end of the estimated economic life of the leased assets, thereby resulting in no residual value. Any remaining residual values under the finance and operating leases are expected to be recovered through rates, renewals or new lease contracts. Residual values have been determined using the estimated economic life of the leased assets. The finance and operating leases do not contain residual value guarantees. Certain of the operating leases have both lease and non-lease components. The lease and non-lease components are allocated based upon estimated relative standalone selling prices. A lease is deemed to exist when the Registrants have provided other parties with the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration received. The right to control is deemed to occur when the Registrants have provided other parties with the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. DTE Energy’s lease income associated with operating leases was included on the Consolidated Statements of Operations for the years ended December 31: 2024 2023 2022 (In millions) Fixed payments $ 15 $ 15 $ 15 Variable payments 45 44 67 $ 60 $ 59 $ 82 DTE Energy’s minimum future rental revenues under operating leases for remaining periods as of December 31, 2024 are as follows: DTE Energy (In millions) 2025 $ 14 2026 11 2027 10 2028 6 2029 6 2030 and thereafter 29 $ 76 Depreciation expense associated with DTE Energy's property under operating leases was $9 million, $8 million, and $11 million for the years ended December 31, 2024, 2023, and 2022, respectively. The following is a summary of property under operating leases for DTE Energy as of December 31: 2024 2023 (In millions) Gross property under operating leases $ 227 $ 228 Accumulated amortization of property under operating leases $ 118 $ 118
Leases	LEASES Lessee Leases at DTE Energy and DTE Electric are primarily comprised of various forms of certain easement leases, coal railcars, building equipment, and computer hardware, leases with terms ranging from approximately 1 to 52 years. A lease is deemed to exist when the Registrants have the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration paid. The right to control is deemed to occur when the Registrants have the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. Lease liabilities are determined utilizing a discount rate to determine the present values of lease payments. Topic 842 requires the use of the rate implicit in the lease when it is readily determinable. When the rate implicit in the lease is not readily determinable, the incremental borrowing rate is used. The Registrants have determined their respective incremental borrowing rates based upon the rate of interest that would have been paid on a collateralized basis over similar tenors to that of the leases. The incremental borrowing rates for DTE Electric and DTE Gas have been determined utilizing respective secured borrowing rates for first mortgage bonds with like tenors of remaining lease terms. Incremental borrowing rates for non-utility entities have been determined utilizing an implied secured borrowing rate based upon an unsecured rate for a similar tenor of remaining lease terms, which is then adjusted for the estimated impact of collateral. Certain leases of the Registrants contain escalation clauses whereby the payments are adjusted for consumer price or labor indices. The Registrants have leases with non-index based escalation clauses for percentage increases. DTE Energy also has leases with variable payments based upon usage of, or revenues associated with, the leased assets. DTE Electric also has leases with variable payments based upon the usage of the leased assets. Certain leases of easements and coal railcars contain provisions whereby the Registrants have the option to terminate the lease agreement by giving notice of such termination during the time frames specified in the respective lease. The Registrants have considered such provisions in the determination of the lease term when it is reasonably certain that the lease would be terminated. The Registrants have certain leases which contain purchase options. Based upon the nature of the leased property and terms of the purchase options, the Registrants have determined it is not reasonably certain that such purchase options will be utilized. Thus, the impact of the purchase options has not been included in the determination of right-of-use assets and lease liabilities for the subject leases. The Registrants have certain leases which contain renewal options. Where the renewal options were deemed reasonably certain to occur, the impacts of such options were included in the determination of the right of use assets and lease liabilities. The Registrants have agreements with lease and non-lease components, which are generally accounted for separately. Consideration in a lease is allocated between lease and non-lease components based upon the estimated relative standalone prices. The Registrants have certain coal railcar leases for which non-lease and lease components are accounted for as a single lease component, as permitted under Topic 842. The following is a summary of the components of lease cost for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Operating lease cost $ 26 $ 22 $ 18 $ 22 $ 17 $ 12 Finance lease cost: Amortization of right-of-use assets 4 7 7 3 6 6 Interest of lease liabilities 1 — 1 1 — — Total finance lease cost 5 7 8 4 6 6 Variable lease cost 17 13 9 — — — Short-term lease cost 18 12 19 10 4 10 $ 66 $ 54 $ 54 $ 36 $ 27 $ 28 The Registrants have elected not to apply the recognition requirements of Topic 842 to leases with a term of 12 months or less. DTE Energy and DTE Electric record operating, variable, and short-term lease costs as Operating Expenses on the Consolidated Statements of Operations, except for certain amounts that may be capitalized to Other Assets. The following is a summary of other information related to leases for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Supplemental Cash Flows Information Cash paid for amounts included in the measurement of these liabilities: Operating cash flows for finance leases $ 9 $ 9 $ 8 $ 7 $ 7 $ 7 Operating cash flows for operating leases $ 19 $ 19 $ 17 $ 15 $ 15 $ 12 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 75 $ 61 $ 5 $ 74 $ 61 $ 2 Finance leases $ 16 $ 5 $ 3 $ 14 $ 5 $ 1 Weighted Average Remaining Lease Term (Years) Operating leases 23.3 18.7 12.8 24.8 19.8 11.1 Finance leases 7.4 8.9 8.2 4.0 4.5 1.1 Weighted Average Discount Rate Operating leases 4.8 % 4.4 % 3.7 % 4.9 % 4.5 % 3.4 % Finance leases 4.6 % 4.0 % 2.4 % 5.8 % 5.4 % 1.0 % The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2024 are as follows: DTE Energy DTE Electric Operating Leases Finance Leases Operating Leases Finance Leases (In millions) 2025 $ 22 $ 5 $ 18 $ 4 2026 22 4 19 3 2027 22 4 19 3 2028 20 4 18 3 2029 16 1 13 — 2030 and thereafter 264 7 241 — Total future minimum lease payments 366 25 328 13 Imputed interest (178) (2) (168) (1) Lease liabilities $ 188 $ 23 $ 160 $ 12 Finance leases reported on the Consolidated Statements of Financial Position of the Registrants are as follows for the years ended December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Right-of-use assets, within Property, plant, and equipment, net $ 23 $ 18 $ 12 $ 6 Current lease liabilities, within Current portion of long-term debt $ 5 $ 3 $ 4 $ 2 Long-term lease liabilities $ 18 $ 13 $ 8 $ 4 Lessor DTE Energy leases various assets under operating leases for a pipeline, energy facilities and related equipment. Such leases are comprised of both fixed payments and variable payments which are contingent on volumes, with terms ranging from 9 to 24 years. Generally, the operating leases do not have renewal provisions or options to purchase the assets at the end of the lease. The operating leases generally do not have termination for convenience provisions. Termination may be allowed under specific circumstances stated in the lease contract, such as under an event of default. Certain of the finance and operating leases have lease terms that extend to the end of the estimated economic life of the leased assets, thereby resulting in no residual value. Any remaining residual values under the finance and operating leases are expected to be recovered through rates, renewals or new lease contracts. Residual values have been determined using the estimated economic life of the leased assets. The finance and operating leases do not contain residual value guarantees. Certain of the operating leases have both lease and non-lease components. The lease and non-lease components are allocated based upon estimated relative standalone selling prices. A lease is deemed to exist when the Registrants have provided other parties with the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration received. The right to control is deemed to occur when the Registrants have provided other parties with the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. DTE Energy’s lease income associated with operating leases was included on the Consolidated Statements of Operations for the years ended December 31: 2024 2023 2022 (In millions) Fixed payments $ 15 $ 15 $ 15 Variable payments 45 44 67 $ 60 $ 59 $ 82 DTE Energy’s minimum future rental revenues under operating leases for remaining periods as of December 31, 2024 are as follows: DTE Energy (In millions) 2025 $ 14 2026 11 2027 10 2028 6 2029 6 2030 and thereafter 29 $ 76 Depreciation expense associated with DTE Energy's property under operating leases was $9 million, $8 million, and $11 million for the years ended December 31, 2024, 2023, and 2022, respectively. The following is a summary of property under operating leases for DTE Energy as of December 31: 2024 2023 (In millions) Gross property under operating leases $ 227 $ 228 Accumulated amortization of property under operating leases $ 118 $ 118

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Environmental DTE Electric Air — DTE Electric is subject to the EPA ozone and fine particulate transport and acid rain regulations that limit power plant emissions of SO 2 and NO X . The EPA and the state of Michigan have also issued emission reduction regulations relating to ozone, fine particulate, regional haze, mercury, and other air pollution. These rules have led to controls on fossil-fueled power plants to reduce SO 2 , NO X , mercury, and other emissions. Additional rule making may occur over the next few years which could require additional controls for SO 2 , NO X , and other hazardous air pollutants. In March 2024, the EPA finalized the NAAQS for fine particulate matter, particles of pollution with diameters generally 2.5 micrometers and smaller (PM2.5). It is likely that areas of Michigan in which DTE Electric operates will be designated as non-attainment in the future and the state will be required to develop a SIP for such areas. No impact is expected in the near term, and any long-term financial impacts cannot be assessed at this time. In April 2024, the EPA finalized new rules to address emissions of GHGs from existing, new, modified, or reconstructed sources in the power sector. The new rules may impact future electric generation plans that will be defined in DTE Electric's next Integrated Resource Plan filing. Challenges to the rules have been filed, and DTE Electric will continue to monitor regulatory developments. The financial impacts of the new rules are still being assessed. Pending or future legislation or other regulatory actions could have a material impact on DTE Electric's operations and financial position and the rates charged to its customers. Potential impacts include expenditures for environmental equipment beyond what is currently planned, financing costs related to additional capital expenditures, the purchase of emission credits from market sources, higher costs of purchased power, and the retirement of facilities where control equipment is not economical. DTE Electric would seek to recover these incremental costs through increased rates charged to its utility customers, as authorized by the MPSC. To comply with air pollution requirements, DTE Electric has spent approximately $2.4 billion. DTE Electric does not anticipate additional capital expenditures for air pollution requirements, subject to the results of future rulemakings. Water — In response to EPA regulations and in accordance with the Clean Water Act section 316(b), DTE Electric was required to examine alternatives for reducing the environmental impacts of the cooling water intake structures at several of its facilities. A final rule became effective in October 2014, which required studies to be completed and submitted as part of the NPDES permit application process to determine the type of technology needed to reduce impacts to fish. DTE Electric has completed the required studies and submitted reports for most of its generation plants, and a final study is in-process for Monroe power plant. Final compliance for the installation of any required technology to reduce the impacts of water intake structures will be determined by the state on a case by case, site specific basis. As part of the Monroe power plant NPDES permit, EGLE has added an option to evaluate the thermal discharge of the facility as it relates to Clean Water Act section 316(a) regulations in order to establish an appropriate temperature discharge limit. DTE Electric has submitted to EGLE a biological demonstration study plan to evaluate the thermal discharge impacts to an aquatic community. After approval of the plan by EGLE and completion of field sampling, data will be processed and compiled into a comprehensive report. At the present time, DTE Electric cannot predict the outcome of this evaluation or financial impact. Contaminated and Other Sites — Prior to the construction of major interstate natural gas pipelines, gas for heating and other uses was manufactured locally from processes involving coal, coke, or oil. The facilities, which produced gas, have been designated as MGP sites. DTE Electric conducted remedial investigations at contaminated sites, including three former MGP sites. The investigations at the former MGP sites have revealed contamination related to the by-products of gas manufacturing. Cleanup of one of the MGP sites is complete, and that site is closed. DTE Electric has also completed partial closure of one additional site. Cleanup activities associated with the remaining sites will continue over the next several years. In addition to the MGP sites, DTE Electric is also in the process of cleaning up other contaminated sites, including the area surrounding an ash landfill, electrical distribution substations, electric generating power plants, and underground and above ground storage tank locations. The findings of these investigations indicated that the estimated cost to remediate these sites is expected to be incurred over the next several years. At December 31, 2024 and 2023, DTE Electric had $10 million and $9 million, respectively, accrued for remediation. These costs are not discounted to their present value. Any change in assumptions, such as remediation techniques, nature and extent of contamination, and regulatory requirements, could impact the estimate of remedial action costs for the sites and affect DTE Electric’s financial position and cash flows. DTE Electric believes the likelihood of a material change to the accrued amount is remote based on current knowledge of the conditions at each site. Coal Combustion Residuals and Effluent Limitations Guidelines — A final EPA rule for the disposal of coal combustion residuals, commonly known as coal ash, became effective in October 2015 and has continued to be updated in subsequent years. The rule is based on the continued listing of coal ash as a non-hazardous waste and relies on various self-implementation design and performance standards. DTE Electric currently owns and operates multiple coal ash storage facilities to manage coal ash from coal-fired power plants that are subject to federal, state, and local CCR and solid waste regulations. At certain facilities, the rule required ongoing sampling and testing of monitoring wells, compliance with groundwater standards, and closure. On May 8, 2024, the EPA finalized a new rule to regulate legacy CCR surface impoundments and CCR management units. The rule expands the reach of the CCR rule to inactive electric generation sites and previously unregulated CCR at any active facility. The rule also extends the dewatering and stabilization criteria of the closure in place performance standards to existing CCR landfills. DTE Electric has no legacy CCR surface impoundments, but does have existing CCR landfills and is evaluating sites for CCR management units. DTE Electric is in the process of evaluating the final rule, which may have significant financial impacts depending on the site-specific characteristics of the units that are regulated by the new rule. Long-term financial impacts cannot be clearly defined at this time and likely will not be clearly defined until the regulated units are identified. Challenges to the rule have been filed, and DTE Electric will continue to monitor for regulatory developments. The preliminary cost estimate to comply with the revised rule is approximately $289 million as of December 31, 2024, and is recorded to Asset retirement obligations. The estimate will be updated as necessary when site-specific details are more fully known. These costs are expected to be recoverable under the regulatory construct as part of removal costs. At the state level, legislation was signed in December 2018 and provides for further regulation of the CCR program in Michigan. Additionally, the statutory revision provides the basis of a CCR program that EGLE has submitted to the EPA for approval to fully regulate the CCR program in Michigan in lieu of a federal permit program. The EPA is currently working with EGLE in reviewing the submitted state program, and DTE Electric will work with EGLE to implement the state program that may be approved in the future. The EPA has updated and revised the ELG in 2015, 2020, and 2024. In each revision, EPA has re-established technology-based standards applicable to wastewaters created at facilities with an electrical generating unit. In each revision, the EPA also established new applicability dates. The Reconsideration Rule, finalized in 2020, provided additional opportunities by finalizing a group of compliance subcategories that provided cessation of coal as a compliance option. Additionally, the 2020 Reconsideration Rule established the Voluntary Incentives Program (VIP) for FGD wastewater compliance only. If a facility applies for the VIP, they must meet more stringent standards, but are allowed an extended time period to meet the compliance requirements by December 1, 2028. The Reconsideration Rule provided these new opportunities for DTE Electric to evaluate existing ELG compliance strategies and make any necessary adjustments to ensure full compliance with the ELGs in a cost-effective manner. Compliance schedules for individual facilities and individual waste streams are determined through issuance of new NPDES permits by the state of Michigan. The state of Michigan issued an NPDES permit for the Belle River power plant establishing compliance deadlines based on the 2020 Reconsideration Rule. On October 11, 2021, DTE Electric submitted a Notice of Planned Participation (NOPP) to the state of Michigan that formally announced the intent to pursue compliance subcategories as ELG compliance options: the cessation of coal at the Belle River power plant no later than December 31, 2028 and the VIP for FGD wastewater at Monroe power plant by December 31, 2028. The EPA also finalized Supplemental ELG Rules on May 9, 2024. This updated the regulations from the 2020 Reconsideration Rule for FGD wastewater, bottom ash transport water (BATW), combustion residual leachate (CRL), and legacy wastewater (LWW). The supplemental rule established new technology-based effluent limitations guidelines and standards applicable to FGD wastewater, BATW, CRL, and LWW. The applicability date for BATW is as soon as possible beginning July 8, 2024 and no later than December 31, 2029. FGD wastewater retrofits must be completed as soon as possible, beginning July 8, 2024 and no later than December, 31 2029 or December 31, 2028 if a permittee is pursuing the VIP subcategory for FGD wastewater. The Cessation of Coal compliance subcategory and VIP from the 2020 Reconsideration Rule were maintained in the 2024 Supplemental Rule and continue to be a fundamental component of DTE Electric's ELG compliance strategy. DTE Electric's compliance strategy includes the conversion of the two generating units at the Belle River power plant to a natural gas peaking resource in 2025-2026, which was included in the NOPP filed in 2021. DTE Electric also submitted a new NOPP to apply for the cessation of coal compliance subcategory for generating units 3 and 4 at the Monroe power plant. DTE Electric plans to retire Monroe's generating units 1 and 2 in 2032. DTE Electric continues to evaluate compliance strategies, technologies and system designs to achieve compliance with the EPA rules at the Monroe power plant in accordance with the VIP subcategory for FGD and new discharge requirements for BATW. Additionally, DTE Electric is evaluating compliance strategies and options to address new requirement and deadlines for other wastewater streams in the 2024 Supplemental Rule at both Belle River Power Plant and Sibley Quarry. DTE Electric currently estimates the impact of the CCR and ELG rules to be $509 million of capital expenditures through 2029. This estimate may change in future periods as DTE Electric evaluates the CCR and ELG rules discussed above that have recently been finalized. DTE Gas Contaminated and Other Sites — DTE Gas owns or previously owned 14 former MGP sites. Investigations have revealed contamination related to the by-products of gas manufacturing at each site. Cleanup of eight MGP sites is complete and those sites are closed. DTE Gas has also completed partial closure of four additional sites. Cleanup activities associated with the remaining sites will continue over the next several years. The MPSC has established a cost deferral and rate recovery mechanism for investigation and remediation costs incurred at former MGP sites. In addition to the MGP sites, DTE Gas is also in the process of cleaning up other contaminated sites, including gate stations, gas pipeline releases, and underground storage tank locations. As of December 31, 2024 and 2023, DTE Gas had $26 million accrued for remediation. These costs are not discounted to their present value. Any change in assumptions, such as remediation techniques, nature and extent of contamination, and regulatory requirements, could impact the estimate of remedial action costs for the sites and affect DTE Gas' financial position and cash flows. DTE Gas anticipates the cost amortization methodology approved by the MPSC, which allows for amortization of the MGP costs over a ten-year period beginning with the year subsequent to the year the MGP costs were incurred, will prevent the associated investigation and remediation costs from having a material adverse impact on DTE Gas' results of operations. Air — In March 2023, the EPA published the Good Neighbor Rule, which includes provisions for compressor engines operated for the transportation of natural gas. In June 2024, the United States Supreme Court issued an opinion granting emergency applications to stay the Good Neighbor Rule. The stay will remain in effect during other litigation. The status of the rule remains uncertain as litigation is ongoing. At this time, DTE Gas does not expect a significant financial impact. As noted above for DTE Electric, the EPA finalized the NAAQS for fine particulate matter in March 2024. It is likely that areas of Michigan in which DTE Gas operates will be designated as non-attainment in the future and the state will be required to develop a SIP for such areas. No impact is expected in the near term, and any long-term financial impacts cannot be assessed at this time. Non-utility DTE Energy's non-utility businesses are subject to a number of environmental laws and regulations dealing with the protection of the environment from various pollutants. In March 2019, the EPA issued an FOV to EES Coke Battery, LLC ("EES Coke"), the Michigan coke battery facility that is a wholly-owned subsidiary of DTE Energy, alleging that the 2008 and 2014 permits issued by EGLE did not comply with the Clean Air Act. In September 2020, the EPA issued another FOV alleging EES Coke's 2018 and 2019 SO2 emissions exceeded projections and hence violated non-attainment new source review permitting requirements. EES Coke evaluated the EPA's alleged violations and believes that the permits approved by EGLE complied with the Clean Air Act. EES Coke responded to the EPA's September 2020 allegations demonstrating its actual emissions are compliant with non-attainment new source review requirements. On June 1, 2022, the U.S. Department of Justice ("DOJ"), on behalf of the EPA, filed a complaint against EES Coke in the U.S. District Court for the Eastern District of Michigan alleging that EES Coke failed to comply with non-attainment new source review requirements under the Clean Air Act when it applied for the 2014 permit. In November 2022, the Sierra Club and City of River Rouge were granted intervention. On May 20, 2024, the court granted a motion allowing the DOJ to amend their complaint to add EES Coke's parent entities, including DTE Energy, as defendants. The parent entities were added in an attempt to share in any potential liability; there are no additional claims alleged. The case is proceeding through discovery and trial is set for July 2025. At the present time, DTE Energy cannot predict the outcome or financial impact of this matter. Other In 2010, the EPA finalized a new one-hour SO 2 ambient air quality standard that requires states to submit plans and associated timelines for non-attainment areas that demonstrate attainment with the new SO 2 standard in phases. Phase 1 addresses non-attainment areas designated based on ambient monitoring data. Phase 2 addresses non-attainment areas with large sources of SO 2 and modeled concentrations exceeding the National Ambient Air Quality Standards for SO 2 . Phase 3 addresses smaller sources of SO 2 with modeled or monitored exceedances of the new SO 2 standard. Michigan's Phase 1 non-attainment area included DTE Energy facilities. However, the EPA published a Federal Implementation Plan (FIP) for the area in June 2022 that did not impact any DTE Energy facilities. It is also not expected that Phase 3 will have any impact on DTE Energy. Michigan's Phase 2 non-attainment area includes DTE Electric facilities in St. Clair County. The EPA approved a clean data determination request submitted by EGLE. This determination suspends certain planning requirements and sanctions for the non-attainment area for as long as the area continues to attain the 2010 SO2 air quality standards, but this does not automatically redesignate the area to attainment. Until the area is officially redesignated as attainment, DTE Energy is unable to determine the impacts. REF Guarantees DTE Energy provided certain guarantees and indemnities in conjunction with the sales of interests in or lease of its previously operated REF facilities. The guarantees cover potential commercial, environmental, and tax-related obligations that will survive until 90 days after expiration of all applicable statutes of limitations. DTE Energy estimates that its maximum potential liability under these guarantees at December 31, 2024 was $216 million. Payments under these guarantees are considered remote. Other Guarantees In certain limited circumstances, the Registrants enter into contractual guarantees. The Registrants may guarantee another entity’s obligation in the event it fails to perform and may provide guarantees in certain indemnification agreements. The Registrants may also provide indirect guarantees for the indebtedness of others. DTE Energy’s guarantees are not individually material with maximum potential payments totaling $69 million at December 31, 2024. Payments under these guarantees are considered remote. The Registrants are periodically required to obtain performance surety bonds in support of obligations to various governmental entities and other companies in connection with its operations. As of December 31, 2024, DTE Energy had $368 million of performance bonds outstanding, including $193 million for DTE Electric. Performance bonds are not individually material, except for $130 million of bonds supporting Energy Trading operations. These bonds are meant to provide counterparties with additional assurance that Energy Trading will meet its contractual obligations for various commercial transactions. The terms of the bonds align with those of the underlying Energy Trading contracts and are estimated to be outstanding approximately 1 to 3 years. In the event that any performance bonds are called for nonperformance, the Registrants would be obligated to reimburse the issuer of the performance bond. The Registrants are released from the performance bonds as the contractual performance is completed and does not believe that a material amount of any currently outstanding performance bonds will be called. Labor Contracts There are several bargaining units for DTE Energy subsidiaries' approximately 4,800 represented employees, including DTE Electric's approximately 2,550 represented employees. This represents 51% and 59% of DTE Energy's and DTE Electric's total employees, respectively. Of these represented employees, approximately 8% have contracts expiring within one year for DTE Energy. Less than 1% of the represented employees have contracts expiring within one year for DTE Electric. Purchase Commitments As of December 31, 2024, the Registrants were party to numerous long-term purchase commitments relating to a variety of goods and services required for their businesses. These agreements primarily consist of fuel supply commitments and renewable energy contracts for the Registrants, as well as energy trading contracts for DTE Energy. The Registrants estimate the following commitments from 2025 through 2051, as detailed in the following tables: 2025 2026 2027 2028 2029 2030 and Thereafter Total DTE Energy (In millions) Long-term power purchase agreements (a) $ 94 $ 94 $ 95 $ 94 $ 94 $ 481 $ 952 Other purchase commitments (b) 3,198 1,579 913 354 241 662 6,947 Total commitments $ 3,292 $ 1,673 $ 1,008 $ 448 $ 335 $ 1,143 $ 7,899 2025 2026 2027 2028 2029 2030 and Thereafter Total DTE Electric (In millions) Long-term power purchase agreements (a) $ 99 $ 100 $ 99 $ 99 $ 97 $ 488 $ 982 Other purchase commitments (b) 607 297 302 78 36 173 1,493 Total commitments $ 706 $ 397 $ 401 $ 177 $ 133 $ 661 $ 2,475 _______________________________________ (a) The agreements represent the minimum obligations with suppliers for renewable energy and renewable energy credits under existing contract terms which expire from 2030 through 2049. DTE Electric's share of plant output ranges from 28% to 100%. Purchase commitments for DTE Electric include affiliate agreements with DTE Sustainable Generation that are eliminated in consolidation for DTE Energy. (b) Excludes amounts associated with full requirements contracts where no stated minimum purchase volume is required. Utility capital expenditures and expenditures for non-utility businesses will be approximately $4.9 billion and $3.7 billion in 2025 for DTE Energy and DTE Electric, respectively. The Registrants have made certain commitments in connection with the estimated 2025 annual capital expenditures. Ludington Plant Contract Dispute DTE Electric and Consumers Energy Company ("Consumers"), joint owners of the Ludington Hydroelectric Pumped Storage plant ("Ludington"), entered into a 2010 engineering, procurement, and construction agreement with Toshiba International Corporation ("TIC"), under which TIC contracted to perform a major overhaul and upgrade of Ludington. TIC later assigned the contract and all of its obligations to Toshiba America Energy Systems ("TAES"). TAES' work under the contract was incomplete, defective, and non-conforming. DTE Electric and Consumers documented TAES' failures to perform under the contract and demanded that TAES provide a comprehensive plan to resolve those matters, including adherence to its warranty commitments and other contractual obligations. DTE Electric and Consumers engaged in extensive efforts to resolve these issues with TAES, including a formal demand to TAES' parent, Toshiba Corporation, under a parent guaranty it provided. TAES did not provide a comprehensive plan or otherwise met its performance obligations. As a result of TAES' defaults, DTE Electric and Consumers terminated the contract. In order to enforce their rights under the contract and parent guaranty, and to pursue appropriate damages, DTE Electric and Consumers filed a complaint against TAES and Toshiba Corporation in the U.S. District Court for the Eastern District of Michigan in April 2022. In June 2022, TAES and Toshiba Corporation filed a motion to dismiss the complaint, along with counterclaims seeking approximately $15 million in damages related to payments allegedly owed under the parties' contract. In September 2022, the motion to dismiss the complaint was denied. DTE Electric believes the outstanding counterclaims are without merit, but would be liable for 49% of the damages if approved. In October 2022, the combined parties submitted a joint discovery plan to proceed with the litigation process and a potential trial during the second half of 2025. DTE Electric cannot predict the financial impact or outcome of this matter. In May 2023, the MPSC approved a jointly-filed request by DTE Electric and Consumers for authority to defer as a regulatory asset the costs associated with repairing or replacing the defective work performed by TAES while the litigation with TAES and Toshiba Corporation moves forward. DTE Electric currently estimates its share of these repair and replacement costs ranges from $350 million to $400 million. Such costs will be offset by any potential litigation proceeds received from TAES or Toshiba Corporation. DTE Electric and Consumers will have the opportunity to seek recovery and ratemaking treatment for amounts which are not recovered from TAES or Toshiba Corporation. Other Contingencies The Registrants are involved in certain other legal, regulatory, administrative, and environmental proceedings before various courts, arbitration panels, and governmental agencies concerning claims arising in the ordinary course of business. These proceedings include certain contract disputes, additional environmental reviews and investigations, audits, inquiries from various regulators, and pending judicial matters. The Registrants cannot predict the final disposition of such proceedings. The Registrants regularly review legal matters and record provisions for claims that they can estimate and are considered probable of loss. The resolution of these pending proceedings is not expected to have a material effect on the Registrants' Consolidated Financial Statements in the periods they are resolved. For a discussion of contingencies related to regulatory matters and derivatives, see Notes 8 and 12 to the Consolidated Financial Statements, "Regulatory Matters" and "Financial and Other Derivative Instruments," respectively.

Nuclear Operations

Nuclear Operations	12 Months Ended
	Dec. 31, 2024
Nuclear Operations [Abstract]
Nuclear Operations	NUCLEAR OPERATIONS Property Insurance DTE Electric maintains property insurance policies specifically for the Fermi 2 plant. These policies cover such items as replacement power and property damage. NEIL is the primary supplier of the insurance policies. DTE Electric maintains a policy for extra expenses, including replacement power costs necessitated by Fermi 2’s unavailability due to an insured event. This policy has a 12-week waiting period and provides an aggregate $490 million of coverage over a three-year period. DTE Electric has $1.5 billion in primary coverage and $1.25 billion of excess coverage for stabilization, decontamination, debris removal, repair and/or replacement of property, and decommissioning. The combined coverage limit for total property damage is $2.75 billion. The total limit for property damage for non-nuclear events is $1.8 billion and an aggregate of $291 million of coverage for extra expenses over a two-year period. On December 20, 2019, the Terrorism Risk Insurance Program Reauthorization Act of 2019 was signed, extending TRIA through December 31, 2027. For multiple terrorism losses caused by acts of terrorism not covered under the TRIA occurring within one year after the first loss from terrorism, the NEIL policies would make available to all insured entities up to $3.2 billion, plus any amounts recovered from reinsurance, government indemnity, or other sources to cover losses. Under NEIL policies, DTE Electric could be liable for maximum assessments of up to $40 million per event if the loss associated with any one event at any nuclear plant should exceed the accumulated funds available to NEIL. Public Liability Insurance As required by federal law, DTE Electric maintains $500 million of public liability insurance for a nuclear incident. Further, under the Price-Anderson Amendments Act of 2005, deferred premium charges up to $166 million could be levied against each licensed nuclear facility, but not more than $25 million per year per facility. Thus, deferred premium charges could be levied against all owners of licensed nuclear facilities in the event of a nuclear incident at any of these facilities. Nuclear Fuel Disposal Costs In accordance with the Federal Nuclear Waste Policy Act of 1982, DTE Electric has a contract with the DOE for the future storage and disposal of spent nuclear fuel from Fermi 2 that required DTE Electric to pay the DOE a fee of 1 mill per kWh of Fermi 2 electricity generated and sold. The fee was a component of nuclear fuel expense. The 1 mill per kWh DOE fee was reduced to zero effective May 16, 2014. The DOE's Yucca Mountain Nuclear Waste Repository program for the acceptance and disposal of spent nuclear fuel was terminated in 2011. DTE Electric is a party in the litigation against the DOE for both past and future costs associated with the DOE's failure to accept spent nuclear fuel under the timetable set forth in the Federal Nuclear Waste Policy Act of 1982. In July 2012, DTE Electric executed a settlement agreement with the federal government for costs associated with the DOE's delay in acceptance of spent nuclear fuel from Fermi 2 for permanent storage. The settlement agreement, including extensions, has provided for a claims process and payment of delay-related costs experienced by DTE Electric through 2025. DTE Electric's claims are being settled and paid on a timely basis. The settlement proceeds reduce the cost of the dry cask storage facility assets and provide reimbursement for related operating expenses. DTE Electric currently employs a spent nuclear fuel storage strategy utilizing a fuel pool and a dry cask storage facility. The spent nuclear fuel storage strategy is expected to provide sufficient spent fuel storage capability for the life of the plant as defined by DTE Electric's operating license agreement. The federal government continues to maintain its legal obligation to accept spent nuclear fuel from Fermi 2 for permanent storage. Issues relating to long-term waste disposal policy and to the disposition of funds contributed by DTE Electric ratepayers to the federal waste fund await future governmental action.

Retirement Benefits and Trustee

Retirement Benefits and Trusteed Assets	12 Months Ended
	Dec. 31, 2024
Retirement Benefits [Abstract]
Retirement Benefits and Trusteed Assets	RETIREMENT BENEFITS AND TRUSTEED ASSETS DTE Energy's subsidiary, DTE Energy Corporate Services, LLC, sponsors defined benefit pension plans and other postretirement benefit plans covering certain employees of the Registrants. Plan participants of all plans are solely DTE Energy and affiliate participants. The table below represents the pension and other postretirement benefit plans of each Registrant at December 31, 2024: Registrants DTE Energy DTE Electric Qualified Pension Plans DTE Energy Company Retirement Plan X X DTE Gas Company Retirement Plan for Employees Covered by Collective Bargaining Agreements X Shenango Inc. Pension Plan (a) X Non-qualified Pension Plans DTE Energy Company Supplemental Retirement Plan (b) X X DTE Energy Company Executive Supplemental Retirement Plan (b) X X DTE Energy Company Supplemental Severance Benefit Plan X Other Postretirement Benefit Plans The DTE Energy Company Comprehensive Non-Health Welfare Plan X X The DTE Energy Company Comprehensive Retiree Group Health Care Plan X X DTE Supplemental Retiree Benefit Plan X X DTE Energy Company Retiree Reimbursement Arrangement Plan X X _____________________________________ (a) Sponsored by Shenango, LLC (b) Sponsored by DTE Energy Company DTE Electric participates in various plans that provide pension and other postretirement benefits for DTE Energy and its affiliates. The plans are primarily sponsored by the LLC. DTE Electric accounts for its participation in DTE Energy's qualified and non-qualified pension plans by applying multiemployer accounting. DTE Electric accounts for its participation in other postretirement benefit plans by applying multiple-employer accounting. Within multiemployer and multiple-employer plans, participants pool plan assets for investment purposes and to reduce the cost of plan administration. The primary difference between plan types is that assets contributed in multiemployer plans can be used to provide benefits for all participating employers, while assets contributed within a multiple-employer plan are restricted for use by the contributing employer. As a result of multiemployer accounting treatment, capitalized costs associated with these plans are reflected in Property, plant, and equipment in DTE Electric's Consolidated Statements of Financial Position. The same capitalized costs are reflected as Regulatory assets and liabilities in DTE Energy's Consolidated Statements of Financial Position. For service costs recognized in earnings, these costs have historically been presented in Operation and maintenance in the Registrants' Consolidated Statements of Operations. For non-service costs recognized in earnings, these costs have historically been presented in Other (Income) and Deductions — Non-operating retirement benefits, net in DTE Energy's Consolidated Statements of Operations and Operation and maintenance in the DTE Electric Consolidated Statements of Operations. In November 2022, DTE Electric received a rate order from the MPSC approving the deferral of qualified pension plan service and non-service costs that were previously being recognized in earnings. Therefore, the Registrants are recording these costs as Regulatory assets beginning in December 2022. Pension Plan Benefits DTE Energy has qualified defined benefit retirement plans for eligible represented and non-represented employees. The plans are noncontributory and provide traditional retirement benefits based on the employee's years of benefit service, average final compensation, and age at retirement. In addition, certain represented and non-represented employees are covered under cash balance provisions that determine benefits on annual employer contributions and interest credits. DTE Energy also maintains supplemental non-qualified, noncontributory, retirement benefit plans for certain management employees. These plans provide for benefits that supplement those provided by DTE Energy’s other retirement plans. Net pension cost (credit) for DTE Energy includes the following components: 2024 2023 2022 (In millions) Service cost $ 58 $ 57 $ 95 Interest cost 208 214 166 Expected return on plan assets (341) (352) (346) Amortization of: Net actuarial loss 59 7 115 Prior service credit (2) (2) (1) Settlements — 7 94 Net pension cost (credit) $ (18) $ (69) $ 123 2024 2023 (In millions) Other changes in plan assets and benefit obligations recognized in Regulatory assets and Other comprehensive income (loss) Net actuarial (gain) loss $ (49) $ 62 Amortization of net actuarial loss and settlements (59) (14) Amortization of prior service credit 2 2 Total recognized in Regulatory assets and Other comprehensive income (loss) $ (106) $ 50 Total recognized in net periodic pension credit, Regulatory assets, and Other comprehensive income (loss) $ (124) $ (19) The following table reconciles the obligations, assets, and funded status of the plans as well as the amounts recognized as a pension liability in DTE Energy's Consolidated Statements of Financial Position at December 31: DTE Energy 2024 2023 (In millions) Accumulated benefit obligation, end of year $ 3,803 $ 4,089 Change in projected benefit obligation Projected benefit obligation, beginning of year $ 4,318 $ 4,309 Service cost 58 57 Interest cost 208 214 Actuarial (gain) loss (254) 74 Benefits paid (348) (329) Settlements — (7) Projected benefit obligation, end of year $ 3,982 $ 4,318 Change in plan assets Plan assets at fair value, beginning of year $ 3,960 $ 3,897 Actual return on plan assets 137 363 Company contributions 9 36 Benefits paid (348) (329) Settlements — (7) Plan assets at fair value, end of year $ 3,758 $ 3,960 Funded status $ (224) $ (358) Amount recorded as: Current liabilities $ (10) $ (8) Noncurrent liabilities (214) (350) $ (224) $ (358) Amounts recognized in Accumulated other comprehensive income, pre-tax Net actuarial loss $ 76 $ 76 $ 76 $ 76 Amounts recognized in Regulatory assets (a) Net actuarial loss $ 1,318 $ 1,426 Prior service credit (3) (5) $ 1,315 $ 1,421 ______________________________________ (a) See Note 8 to the Consolidated Financial Statements, "Regulatory Matters." The decrease in the pension benefit obligation for the year ended December 31, 2024, was primarily due to an actuarial gain driven by an increase in discount rates. The increase in DTE Energy's pension benefit obligation in 2023 was primarily due to an actuarial loss driven by a decrease in discount rates. The Registrants’ policy is to fund pension costs by contributing amounts consistent with the provisions of the Pension Protection Act of 2006, and additional amounts when it deems appropriate. In 2024, DTE Energy made a nominal contribution to the qualified pension plans. In 2023 and 2022, DTE Gas transferred $50 million of non-represented qualified pension plan funds to DTE Electric in exchange for cash consideration. In addition, DTE Energy anticipates a transfer of up to $25 million of non-represented qualified pension plan funds from DTE Gas to DTE Electric in 2025, subject to management discretion and any changes in financial market conditions. DTE Energy's subsidiaries are responsible for their share of qualified and non-qualified pension benefit costs. DTE Electric's allocated portion of pension benefit costs included in regulatory assets and liabilities, operation and maintenance expense, other income and deductions, and capital expenditures were credits of $5 million and $39 million for the years ended December 31, 2024 and 2023, respectively, and a cost of $101 million for the year ended December 31, 2022. These amounts may include recognized contractual termination benefit charges, curtailment gains, and settlement charges. At December 31, 2024, the benefits related to DTE Energy's qualified and non-qualified pension plans expected to be paid in each of the next five years and in the aggregate for the five fiscal years thereafter are as follows: (In millions) 2025 $ 321 2026 321 2027 323 2028 325 2029 321 2030-2034 1,585 Total $ 3,196 Assumptions used in determining the projected benefit obligation and net pension costs of DTE Energy are: 2024 2023 2022 Projected benefit obligation Discount rate 5.65% 5.00% 5.19% Rate of compensation increase 3.55% 3.80% 3.80% Cash balance interest crediting rate 4.50% 3.60% 3.40% Net pension costs Discount rate 5.00% 5.19% 2.91% Rate of compensation increase 3.80% 3.80% 3.80% Expected long-term rate of return on plan assets 8.00% 7.60% 6.80% Cash balance interest crediting rate 3.60% 3.40% 2.40% DTE Energy employs a formal process in determining the long-term rate of return for various asset classes. Management reviews historic financial market risks and returns and long-term historic relationships between the asset classes of equities, fixed income, and other assets, consistent with the widely accepted capital market principle that asset classes with higher volatility generate a greater return over the long-term. Current market factors such as inflation, interest rates, asset class risks, and asset class returns are evaluated and considered before long-term capital market assumptions are determined. The long-term portfolio return is also established employing a consistent formal process, with due consideration of diversification, active investment management, and rebalancing. Peer data is reviewed to check for reasonableness. As a result of this process, the Registrants have a long-term rate of return assumption for the pension plans of 7.80% for 2025. The Registrants believe this rate is a reasonable assumption for the long-term rate of return on plan assets given the current investment strategy. The DTE Energy Company Affiliates Employee Benefit Plans Master Trust employs a liability driven investment program whereby the characteristics of plan liabilities are considered when determining investment policy. Risk tolerance is established through consideration of future plan cash flows, plan funded status, and corporate financial considerations. The investment portfolio contains a diversified blend of equity, fixed income, and other investments. Furthermore, equity investments are diversified across U.S. and non-U.S. stocks and large and small market capitalizations. Fixed income investments generally include U.S. Treasuries, other governmental debt, diversified corporate bonds, bank loans, and mortgage-backed securities. Other investments are used to enhance long-term returns while improving portfolio diversification. Derivatives may be utilized in a risk controlled manner, to potentially increase the portfolio beyond the market value of invested assets and/or reduce portfolio investment risk. Investment risk is measured and monitored on an ongoing basis through annual liability measurements, periodic asset/liability studies, and quarterly investment portfolio reviews. Target allocations for DTE Energy's pension plan assets as of December 31, 2024 are listed below: U.S. Large Capitalization (Cap) Equity Securities 8 % U.S. Small Cap and Mid Cap Equity Securities 1 Non-U.S. Equity Securities 6 Fixed Income Securities 58 Hedge Funds and Similar Investments 8 Private Equity and Other 19 100 % The following table provides the fair value measurement amounts for DTE Energy's pension plan assets at December 31, 2024 and 2023 (a) : December 31, 2024 December 31, 2023 Level 1 Level 2 Other (b) Total Level 1 Level 2 Other (b) Total DTE Energy asset category: (In millions) Short-term Investments (c) $ 97 $ — $ — $ 97 $ 100 $ — $ — $ 100 Equity Securities Domestic (d) — — 349 349 — — 550 550 International (e) 35 — 188 223 55 — 309 364 Fixed Income Securities Governmental (f) 627 76 — 703 531 78 — 609 Corporate (g) — 1,350 — 1,350 — 1,323 — 1,323 Hedge Funds and Similar Investments (h) 137 14 167 318 104 68 110 282 Private Equity and Other (i) — — 718 718 — — 732 732 DTE Energy Total $ 896 $ 1,440 $ 1,422 $ 3,758 $ 790 $ 1,469 $ 1,701 $ 3,960 _______________________________________ (a) For a description of levels within the fair value hierarchy, see Note 11 to the Consolidated Financial Statements, "Fair Value." (b) Amounts represent assets valued at NAV as a practical expedient for fair value. (c) This category predominantly represents certain short-term fixed income securities and money market investments that are managed in separate accounts or commingled funds. Pricing for investments in this category is obtained from quoted prices in actively traded markets. (d) This category represents portfolios of large, medium and small capitalization domestic equities. Investments in this category include exchange-traded securities held in a commingled fund classified as NAV assets. (e) This category primarily consists of portfolios of non-U.S. developed and emerging market equities. Investments in this category include exchange-traded securities for which unadjusted quoted prices can be obtained and exchange-traded securities held in a commingled fund classified as NAV assets. (f) This category includes U.S. Treasuries, bonds, and other governmental debt. Pricing for investments in this category is obtained from quoted prices in actively traded markets and quotations from broker or pricing services. (g) This category primarily consists of corporate bonds from diversified industries, bank loans, and mortgage-backed securities. Pricing for investments in this category is obtained from quotations from broker or pricing services. (h) This category utilizes a diversified group of strategies that attempt to capture uncorrelated sources of return and includes publicly traded mutual funds, insurance-linked and asset-backed securities, commingled funds and limited partnership funds. Pricing for mutual funds in this category is obtained from quoted prices in actively traded markets. Pricing for insurance-linked and asset-backed securities is obtained from quotations from broker or pricing services. Commingled funds and limited partnership funds are classified as NAV assets. (i) This category includes a diversified group of funds and strategies that primarily invests in private equity partnerships. This category also includes investments in private real estate and private debt. All investments in this category are classified as NAV assets. The pension trust holds debt and equity securities directly and indirectly through commingled funds. Exchange-traded debt and equity securities held directly, as well as publicly traded commingled funds, are valued using quoted market prices in actively traded markets. Non-publicly traded commingled funds hold exchange-traded equity or debt securities and are valued based on stated NAVs. Non-exchange traded fixed income securities are valued by the trustee based upon quotations available from brokers or pricing services. A primary price source is identified by asset type, class, or issue for each security. The trustee monitors prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the trustee challenges an assigned price and determines that another price source is considered preferable. DTE Energy has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Other Postretirement Benefits The Registrants participate in defined benefit plans sponsored by the LLC that provide certain other postretirement health care and life insurance benefits for employees who are eligible for these benefits. The Registrants' policy is to fund certain trusts to meet its other postretirement benefit obligations. DTE Energy did not make any contributions to these trusts during 2024 and does not anticipate making any contributions to the trusts in 2025. DTE Energy and DTE Electric offer a defined contribution VEBA for eligible represented and non-represented employees, in lieu of defined benefit post-employment health care benefits. The Registrants allocate a fixed amount per year to an account in a defined contribution VEBA for each employee. These accounts are managed either by the Registrant (for non-represented and certain represented groups) or by the Utility Workers of America for Local 223 employees. The following table provides contributions to the VEBA in: 2024 2023 2022 (In millions) DTE Energy $ 15 $ 16 $ 16 DTE Electric $ 6 $ 7 $ 7 The Registrants also contribute a fixed amount to a Retiree Reimbursement Account for certain non-represented and represented retirees, spouses, and surviving spouses when the youngest of the retiree's covered household becomes eligible for Medicare Part A based on age. The amount of the annual allocation to each participant is determined by the employee's retirement date and increases each year for each eligible participant at the lower of the rate of medical inflation or 2%. Net other postretirement credit for DTE Energy includes the following components: 2024 2023 2022 (In millions) Service cost $ 18 $ 17 $ 27 Interest cost 62 65 48 Expected return on plan assets (120) (111) (126) Amortization of: Net actuarial loss 6 10 4 Prior service credit (10) (19) (19) Net other postretirement credit $ (44) $ (38) $ (66) 2024 2023 (In millions) Other changes in plan assets and accumulated postretirement benefit obligation recognized in Regulatory assets and liabilities and Other comprehensive income (loss) Net actuarial gain $ (103) $ (17) Amortization of net actuarial loss (6) (10) Amortization of prior service credit 10 19 Total recognized in Regulatory assets and liabilities and Other comprehensive income (loss) $ (99) $ (8) Total recognized in net periodic benefit cost, Regulatory assets and liabilities, and Other comprehensive income (loss) $ (143) $ (46) Net other postretirement credit for DTE Electric includes the following components: 2024 2023 2022 (In millions) Service cost $ 14 $ 13 $ 20 Interest cost 47 49 37 Expected return on plan assets (79) (73) (85) Amortization of: Net actuarial loss 1 1 5 Prior service credit (6) (14) (14) Net other postretirement credit $ (23) $ (24) $ (37) 2024 2023 (In millions) Other changes in plan assets and accumulated postretirement benefit obligation recognized in Regulatory assets and liabilities Net actuarial gain $ (98) $ (6) Amortization of net actuarial loss (1) (1) Amortization of prior service credit 6 14 Total recognized in Regulatory assets and liabilities $ (93) $ 7 Total recognized in net periodic benefit cost and Regulatory assets and liabilities $ (116) $ (17) The following table reconciles the obligations, assets, and funded status of the plans including amounts recorded as Prepaid postretirement costs or Accrued postretirement liability in the Registrants' Consolidated Statements of Financial Position at December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Change in accumulated postretirement benefit obligation Accumulated postretirement benefit obligation, beginning of year $ 1,283 $ 1,293 $ 982 $ 982 Service cost 18 17 14 13 Interest cost 62 65 47 49 Actuarial (gain) loss (165) (5) (139) 2 Benefits paid (75) (87) (55) (64) Accumulated postretirement benefit obligation, end of year $ 1,123 $ 1,283 $ 849 $ 982 Change in plan assets Plan assets at fair value, beginning of year $ 1,614 $ 1,577 $ 1,070 $ 1,052 Actual return on plan assets 58 124 40 81 Benefits paid (78) (87) (58) (63) Plan assets at fair value, end of year $ 1,594 $ 1,614 $ 1,052 $ 1,070 Funded status $ 471 $ 331 $ 203 $ 88 Amount recorded as: Noncurrent assets $ 705 $ 633 $ 428 $ 378 Current liabilities (1) (1) — — Noncurrent liabilities (233) (301) (225) (290) $ 471 $ 331 $ 203 $ 88 Amounts recognized in Accumulated other comprehensive income (loss), pre-tax Net actuarial gain $ (14) $ (13) $ — $ — Amounts recognized in Regulatory assets and liabilities (a) Net actuarial (gain) loss $ 65 $ 173 $ (26) $ 73 Prior service credit — (10) — (6) $ 65 $ 163 $ (26) $ 67 ______________________________________ (a) See Note 8 to the Consolidated Financial Statements, "Regulatory Matters." The Registrants' postretirement benefit obligations decreased for the year ended December 31, 2024 primarily due to actuarial gains driven by increases in discount rates. The postretirement benefit obligation did not change significantly for year ended December 31, 2023. The following table reflects other postretirement benefit plans with accumulated postretirement benefit obligations in excess of plan assets as of December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Accumulated postretirement benefit obligation $ 530 $ 628 $ 501 $ 592 Fair value of plan assets 296 326 276 302 Accumulated postretirement benefit obligation in excess of plan assets $ 234 $ 302 $ 225 $ 290 At December 31, 2024, the benefits expected to be paid, including prescription drug benefits, in each of the next five years and in the aggregate for the five fiscal years thereafter for the Registrants are as follows: DTE Energy DTE Electric (In millions) 2025 $ 78 $ 59 2026 82 62 2027 83 63 2028 85 64 2029 87 66 2030-2034 456 347 Total $ 871 $ 661 Assumptions used in determining the accumulated postretirement benefit obligation and net other postretirement benefit costs of the Registrants are: 2024 2023 2022 Accumulated postretirement benefit obligation Discount rate 5.66% 5.00% 5.19% Health care trend rate pre- and post- 65 8.50 / 9.00% 7.75 / 8.25% 6.75 / 7.25% Ultimate health care trend rate 4.50% 4.50% 4.50% Year in which ultimate reached pre- and post- 65 2035 2035 2035 Other postretirement benefit costs Discount rate 5.00% 5.19% 2.91% Expected long-term rate of return on plan assets 7.60% 7.20% 6.40% Health care trend rate pre- and post- 65 7.75 / 8.25% 6.75 / 7.25% 6.75 / 7.25% Ultimate health care trend rate 4.50% 4.50% 4.50% Year in which ultimate reached pre- and post- 65 2035 2035 2034 The process used in determining the long-term rate of return on assets for the other postretirement benefit plans is similar to that previously described for the pension plans. As a result of this process, the Registrants have a long-term rate of return assumption for the other postretirement benefit plans of 7.50% for 2025. The Registrants believe this rate is a reasonable assumption for the long-term rate of return on plan assets given the current investment strategy. The DTE Energy Company Master VEBA Trust employs a liability driven investment program whereby the characteristics of plan liabilities are considered when determining investment policy. Risk tolerance is established through consideration of future plan cash flows, plan funded status, and corporate financial considerations. The investment portfolio contains a diversified blend of equity, fixed income, and other investments. Furthermore, equity investments are diversified across U.S. and non-U.S. stocks and large and small market capitalizations. Fixed income investments generally include U.S. Treasuries, other governmental debt, diversified corporate bonds, bank loans, and mortgage-backed securities. Other investments are used to enhance long-term returns while improving portfolio diversification. Derivatives may be utilized in a risk controlled manner to potentially increase the portfolio beyond the market value of invested assets and/or reduce portfolio investment risk. Investment risk is measured and monitored on an ongoing basis through annual liability measurements, periodic asset/liability studies, and quarterly investment portfolio reviews. Target allocations for the Registrants' other postretirement benefit plan assets as of December 31, 2024 are listed below: U.S. Large Cap Equity Securities 4 % Non-U.S. Equity Securities 3 Fixed Income Securities 63 Hedge Funds and Similar Investments 9 Private Equity and Other 21 100 % The following tables provide the fair value measurement amounts for the Registrants' other postretirement benefit plan assets at December 31, 2024 and 2023 (a) : December 31, 2024 December 31, 2023 Level 1 Level 2 Other (b) Total Level 1 Level 2 Other (b) Total (In millions) DTE Energy asset category: Short-term Investments (c) $ 33 $ — $ — $ 33 $ 41 $ — $ — $ 41 Equity Securities Domestic (d) — — 67 67 — — 76 76 International (e) 6 — 34 40 7 — 43 50 Fixed Income Securities Governmental (f) 210 34 — 244 242 31 — 273 Corporate (g) — 492 208 700 — 459 212 671 Hedge Funds and Similar Investments (h) 27 3 103 133 18 21 86 125 Private Equity and Other (i) — — 377 377 — — 378 378 DTE Energy Total $ 276 $ 529 $ 789 $ 1,594 $ 308 $ 511 $ 795 $ 1,614 DTE Electric asset category: Short-term Investments (c) $ 21 $ — $ — $ 21 $ 27 $ — $ — $ 27 Equity Securities Domestic (d) — — 42 42 — — 48 48 International (e) 4 — 22 26 4 — 27 31 Fixed Income Securities Governmental (f) 138 22 — 160 161 21 — 182 Corporate (g) — 324 141 465 — 302 145 447 Hedge Funds and Similar Investments (h) 17 2 69 88 11 14 58 83 Private Equity and Other (i) — — 250 250 — — 252 252 DTE Electric Total $ 180 $ 348 $ 524 $ 1,052 $ 203 $ 337 $ 530 $ 1,070 _______________________________________ (a) For a description of levels within the fair value hierarchy see Note 11 to the Consolidated Financial Statements, "Fair Value." (b) Amounts represent assets valued at NAV as a practical expedient for fair value. (c) This category predominantly represents certain short-term fixed income securities and money market investments that are managed in separate accounts or commingled funds. Pricing for investments in this category is obtained from quoted prices in actively traded markets. (d) This category represents portfolios of large, medium and small capitalization domestic equities. Investments in this category include exchange-traded securities held in a commingled fund classified as NAV assets. (e) This category primarily consists of portfolios of non-U.S. developed and emerging market equities. Investments in this category include exchange-traded securities for which unadjusted quoted prices can be obtained and exchange-traded securities held in a commingled fund classified as NAV assets. (f) This category includes U.S. Treasuries, bonds and other governmental debt. Pricing for investments in this category is obtained from quoted prices in actively traded markets and quotations from broker or pricing services. (g) This category primarily consists of corporate bonds from diversified industries, bank loans, and mortgage backed securities. Pricing for investments in this category is obtained from quotations from broker or pricing services. Non-exchange traded securities and exchange-traded securities held in commingled funds are classified as NAV assets. (h) This category utilizes a diversified group of strategies that attempt to capture uncorrelated sources of return and includes publicly traded mutual funds, insurance-linked and asset-backed securities, commingled funds and limited partnership funds. Pricing for mutual funds in this category is obtained from quoted prices in actively traded markets. Pricing for insurance-linked and asset-backed securities is obtained from quotations from broker or pricing services. Commingled funds and limited partnership funds are classified as NAV assets. (i) This category includes a diversified group of funds and strategies that primarily invests in private equity partnerships. This category also includes investments in private real estate and private debt. All investments in this category are classified as NAV assets. The DTE Energy Company Master VEBA Trust holds debt and equity securities directly and indirectly through commingled funds. Exchange-traded debt and equity securities held directly, as well as publicly traded commingled funds, are valued using quoted market prices in actively traded markets. Non-publicly traded commingled funds hold exchange-traded equity or debt securities and are valued based on NAVs. Non-exchange traded fixed income securities are valued by the trustee based upon quotations available from brokers or pricing services. A primary price source is identified by asset type, class, or issue for each security. The trustee monitors prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the trustee challenges an assigned price and determines that another price source is considered preferable. The Registrants have obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Defined Contribution Plans The Registrants also sponsor defined contribution retirement savings plans. Participation in one of these plans is available to substantially all represented and non-represented employees. For substantially all employees, the Registrants match employee contributions up to certain predefined limits based upon eligible compensation and the employee’s contribution rate. Additionally, for eligible represented and non-represented employees who do not participate in the Pension Plans, the Registrants contribute amounts equivalent to 4% (8% for certain DTE Gas represented employees) of an employee's eligible compensation to the employee's defined contribution retirement savings plan. For DTE Energy, the cost of these plans was $76 million, $75 million, and $73 million for the years ended December 31, 2024, 2023, and 2022, respectively. For DTE Electric, the cost of these plans was $35 million for the years ended December 31, 2024, 2023 and 2022.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2024
Share-Based Payment Arrangement, Noncash Expense [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION DTE Energy’s stock incentive program permits the grant of incentive stock options, non-qualifying stock options, stock awards, performance shares, and performance units to employees and members of its Board of Directors. As a result of a stock award, a settlement of an award of performance shares, or by exercise of a participant’s stock option, DTE Energy may deliver common stock from its authorized but unissued common stock and/or from outstanding common stock acquired by or on behalf of DTE Energy in the name of the participant. Key provisions of the stock incentive program are: • Authorized limit is 20,162,716 shares of common stock; • Prohibits the grant of a stock option with an exercise price that is less than the fair market value of DTE Energy’s stock on the date of the grant; and • Imposes the following award limits to a single participant in a single calendar year, (1) options for more than 500,000 shares of common stock; (2) stock awards for more than 150,000 shares of common stock; (3) performance share awards for more than 300,000 shares of common stock (based on the maximum payout under the award); or (4) more than 1,000,000 performance units, which have a face amount of $1.00 each. DTE Energy records compensation expense at fair value over the vesting period for all awards it grants. The following table summarizes the components of stock-based compensation for DTE Energy: 2024 2023 2022 (In millions) Stock-based compensation expense $ 54 $ 48 $ 62 Tax benefit $ 10 $ 9 $ 11 Restricted Stock Awards Stock awards granted under the plan are restricted for varying periods, generally for three years. Participants have all rights of a shareholder with respect to a stock award, including the right to receive dividends and vote the shares. Prior to vesting in stock awards, the participant: (i) may not sell, transfer, pledge, exchange, or otherwise dispose of shares; (ii) shall not retain custody of the share certificates; and (iii) will deliver to DTE Energy a stock power with respect to each stock award upon request. The stock awards are recorded at cost that approximates fair value on the date of grant. The cost is amortized to compensation expense over the vesting period. The fair value of awards vested were not material for the years ended December 31, 2024, 2023, and 2022. Compensation cost charged against income was $14 million for the years ended December 31, 2024 and 2023, and $15 million for the year ended December 31, 2022. Performance Share Awards Performance shares awarded under the plan are for a specified number of shares of DTE Energy common stock that entitle the holder to receive a cash payment, shares of DTE Energy common stock, or a combination thereof. The final value of the award is determined by the achievement of certain performance objectives and market conditions. The awards vest at the end of a specified period, usually three years. Awards granted in 2024, 2023, and 2022 were primarily deemed to be equity awards. The DTE Energy stock price and number of probable shares attributable to market conditions for such equity awards are fair valued only at the grant date. DTE Energy accounts for performance share awards by accruing compensation expense over the vesting period based on: (i) the number of shares expected to be paid which is based on the probable achievement of performance objectives; and (ii) the closing stock price market value. The settlement of the award is based on the closing price at the settlement date. DTE Energy recorded activity relating to performance share awards as follows: 2024 2023 2022 (In millions, except per share amounts) Weighted average grant date fair value of awards granted (per share) $ 106.04 $ 112.73 $ 120.25 Awards settled in cash (a) $ — $ 9 $ 10 Awards settled in stock (a) $ 63 $ 59 $ 72 Compensation expense $ 40 $ 34 $ 47 _______________________________________ (a) Sum of awards settled in cash and stock approximates the intrinsic value of the awards. During the vesting period, the recipient of a performance share award has no shareholder rights. During the period beginning on the date the performance shares are awarded and ending on the certification date of the performance objectives, the number of performance shares awarded will be increased, assuming full dividend reinvestment at the fair market value on the dividend payment date. The cumulative number of performance shares will be adjusted to determine the final payment based on the performance objectives achieved. Performance share awards are nontransferable and are subject to risk of forfeiture. The following table summarizes DTE Energy’s performance share activity for the period ended December 31, 2024: Performance Shares Weighted Average Balance at December 31, 2023 990,493 $ 121.29 Grants 406,442 $ 106.04 Forfeitures (89,966) $ 109.69 Payouts (330,126) $ 102.83 Balance at December 31, 2024 976,843 $ 122.25 Unrecognized Compensation Costs As of December 31, 2024, DTE Energy's total unrecognized compensation cost related to non-vested stock incentive plan arrangements and the weighted average recognition period was as follows: Unrecognized Weighted Average (In millions) (In years) Stock awards $ 20 1.95 Performance shares 36 1.71 $ 56 1.80 Allocated Stock-Based Compensation DTE Electric received an allocation of costs from DTE Energy associated with stock-based compensation. DTE Electric's allocation for 2024, 2023, and 2022 for stock-based compensation expense was $37 million, $31 million, and $40 million, respectively.

Segment and Related Information

Segment and Related Information	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Segment and Related Information	SEGMENT AND RELATED INFORMATION DTE Energy sets strategic goals, allocates resources, and evaluates performance based on the four reportable segments below. DTE Electric is a standalone registrant with one reportable segment. Electric segment consists principally of DTE Electric, which is engaged in the generation, purchase, distribution, and sale of electricity to approximately 2.3 million residential, commercial, and industrial customers in southeastern Michigan. Gas segment consists principally of DTE Gas, which is engaged in the purchase, storage, transportation, distribution, and sale of natural gas to approximately 1.3 million residential, commercial, and industrial customers throughout Michigan and the sale of storage and transportation capacity. DTE Vantage segment is comprised primarily of renewable energy projects that sell electricity and pipeline-quality gas and projects that deliver custom energy solutions to industrial, commercial, and institutional customers. DTE Vantage formerly included projects that produced reduced emissions fuel; however, these projects were closed as planned in 2022 upon REF facilities exhausting their eligibility for generating production tax credits. Energy Trading segment consists of energy marketing and trading operations. Corporate and Other includes various holding company activities, holds certain non-utility debt, and holds certain investments, including funds supporting regional development and economic growth. The chief operating decision maker (CODM) at DTE Energy is the Financial Objectives committee, which is comprised of the Chief Executive Officer, Chief Operating Officer, Chief Financial Officer, and other executive leaders of DTE Energy. The CODM at DTE Electric is comprised of the Chief Executive Officer, Chief Operating Officer, and Chief Financial Officer. The CODMs assess performance for the reportable segments detailed above and decide how to allocate resources based on Net Income (Loss) Attributable to DTE Energy Company and monitoring budget versus actual results. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. 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. Year Ended December 31, 2024 2023 2022 (In millions) Electric segment (a) $ 71 $ 72 $ 71 Gas segment 16 17 13 DTE Vantage segment 43 68 78 Energy Trading segment 100 85 102 $ 230 $ 242 $ 264 _______________________________________ (a) Inter-segment billing for the Electric segment relating to Non-utility operations includes $3 million for the years ended December 31, 2024 and 2023 and $6 million for the year ended December 31, 2022. All inter-segment transactions and balances are eliminated in consolidation for DTE Energy. Centrally incurred costs such as labor and overheads are assigned directly to DTE Energy's business segments or allocated based on various cost drivers, depending on the nature of service provided. The federal income tax provisions or benefits of DTE Energy’s subsidiaries are determined on an individual company basis and recognize the tax benefit of tax credits and net operating losses, if applicable. The state and local income tax provisions of the utility subsidiaries are also determined on an individual company basis and recognize the tax benefit of various tax credits and net operating losses, if applicable. The subsidiaries record federal, state, and local income taxes payable to or receivable from DTE Energy based on the federal, state, and local tax provisions of each company. The Reclassifications and Eliminations group below also includes the reclassification of deferred tax assets and prepaid pension assets, which are netted against deferred tax liabilities and accrued pension liabilities, respectively, for presentation on the DTE Energy Consolidated Statements of Financial Position. Refer to Note 9 to the Consolidated Financial Statements, "Income Taxes," for additional information regarding the Registrants' deferred taxes and to Note 19, "Retirement Benefits and Trusteed Assets," for additional information regarding pension plans. Financial data of DTE Energy's business segments follows: Electric (a) Gas DTE Vantage Energy Trading Total Reportable Segments Corporate and Other Reclassifications Total (In millions) 2024 Segment profit (loss) Operating Revenues — Utility operations $ 6,277 1,798 — — $ 8,075 — (85) $ 7,990 Operating Revenues — Non-utility operations $ 16 — 753 3,843 $ 4,612 — (145) $ 4,467 Depreciation and amortization $ 1,447 221 59 5 $ 1,732 — — $ 1,732 Interest expense $ 498 118 28 14 $ 658 351 (58) $ 951 Interest income $ (7) (10) (76) (15) $ (108) (86) 58 $ (136) Equity earnings (losses) of equity method investees $ — 1 15 — $ 16 (1) — $ 15 Other segment items (pre-tax) (b) $ 3,314 1,134 629 3,672 $ 8,749 6 (230) $ 8,525 Income Tax Expense (Benefit) $ (31) 77 (37) 42 $ 51 (85) — $ (34) Net Income (Loss) Attributable to DTE Energy Company $ 1,072 257 135 125 $ 1,589 (185) — $ 1,404 2024 Other segment financial data Investment in equity method investees $ 5 18 82 — $ 105 23 — $ 128 Capital expenditures and acquisitions $ 3,659 740 65 3 $ 4,467 — — $ 4,467 Goodwill $ 1,208 743 25 17 $ 1,993 — — $ 1,993 Total Assets $ 35,400 8,474 2,065 1,159 $ 47,098 4,723 (2,975) $ 48,846 2023 Segment profit (loss) Operating Revenues — Utility operations $ 5,804 1,748 — — $ 7,552 — (86) $ 7,466 Operating Revenues — Non-utility operations $ 14 — 809 4,612 $ 5,435 — (156) $ 5,279 Depreciation and amortization $ 1,340 209 53 4 $ 1,606 — — $ 1,606 Interest expense $ 432 102 15 18 $ 567 270 (46) $ 791 Interest income $ (20) (9) (32) (9) $ (70) (33) 46 $ (57) Equity earnings (losses) of equity method investees $ — 1 7 — $ 8 (5) — $ 3 Other segment items (pre-tax) (b) $ 3,216 1,058 635 4,151 $ 9,060 18 (242) $ 8,836 Income Tax Expense (Benefit) $ 78 93 (22) 112 $ 261 (92) — $ 169 Net Income (Loss) Attributable to DTE Energy Company $ 772 294 153 336 $ 1,555 (158) — $ 1,397 2023 Other segment financial data Investment in equity method investees $ 5 16 118 — $ 139 27 — $ 166 Capital expenditures and acquisitions $ 3,128 746 57 3 $ 3,934 — — $ 3,934 Goodwill $ 1,208 743 25 17 $ 1,993 — — $ 1,993 Total Assets $ 32,292 7,722 1,122 1,166 $ 42,302 4,150 (1,697) $ 44,755 _______________________________________ (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 Total (In millions) 2022 Segment profit (loss) Operating Revenues — Utility operations $ 6,397 1,924 — — $ 8,321 — (78) $ 8,243 Operating Revenues — Non-utility operations $ 15 — 848 10,308 $ 11,171 — (186) $ 10,985 Depreciation and amortization $ 1,218 192 52 5 $ 1,467 1 — $ 1,468 Interest expense $ 372 91 15 17 $ 495 210 (30) $ 675 Interest income $ (8) (8) (28) (6) $ (50) (26) 30 $ (46) Equity earnings (losses) of equity method investees $ — 2 — — $ 2 (16) — $ (14) Other segment items (pre-tax) (b) $ 3,849 1,287 699 10,415 $ 16,250 47 (264) $ 16,033 Income Tax Expense (Benefit) $ 25 88 18 (31) $ 100 (71) — $ 29 Net Income (Loss) Attributable to DTE Energy Company $ 956 272 92 (92) $ 1,228 (145) — $ 1,083 2022 Other segment financial data Investment in equity method investees $ 6 15 111 — $ 132 33 — $ 165 Capital expenditures and acquisitions $ 2,620 693 62 3 $ 3,378 — — $ 3,378 Goodwill $ 1,208 743 25 17 $ 1,993 — — $ 1,993 Total Assets $ 30,342 7,321 1,077 1,385 $ 40,125 4,409 (1,851) $ 42,683 _______________________________________ (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.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2024
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS DTE Electric has agreements with affiliated companies to buy and sell power, and for the purchase and transportation of fuel for use at its natural gas-fired combined cycle plant and other generation facilities. DTE Electric also has agreements with certain DTE Energy affiliates where it charges the affiliates for their use of the shared capital assets of DTE Electric. Various other corporate support expenses are accumulated by a shared services company and charged to various subsidiaries of DTE Energy, including DTE Electric. The following is a summary of DTE Electric's transactions with affiliated companies: 2024 2023 2022 (In millions) Revenues and Other Income Energy sales $ 11 $ 11 $ 8 Other services and interest $ — $ 3 $ — Shared capital assets $ 58 $ 58 $ 57 Costs Fuel and purchased power $ 65 $ 50 $ 58 Other services and interest $ 4 $ 2 $ 1 Corporate expenses $ 342 $ 299 $ 379 Other Dividends declared $ 776 $ 1,002 $ 763 Dividends paid $ 776 $ 1,002 $ 763 Capital contribution from DTE Energy $ 634 $ 759 $ 600 DTE Electric's Accounts receivable and Accounts payable related to affiliates are payable upon demand and are generally settled in cash within a monthly business cycle. Notes receivable and Short-term borrowings related to affiliates are subject to a credit agreement with DTE Energy whereby short-term excess cash or cash shortfalls are remitted to or funded by DTE Energy. This credit arrangement involves the charge and payment of interest based on monthly commercial paper rates. The weighted average interest rate for DTE Electric's affiliate borrowings was 4.7% and 5.6% at December 31, 2024 and 2023, respectively. Refer to DTE Electric's Consolidated Statements of Financial Position for affiliate balances at December 31, 2024 and 2023. DTE Electric records federal, state, and local income taxes payable to or receivable from DTE Energy based on its federal, state, and local tax provisions. Refer to Note 9 to the Consolidated Financial Statements, "Income Taxes," for additional information. For a discussion of other related party transactions impacting DTE Electric, see Notes 19 and 20 to the Consolidated Financial Statements, "Retirement Benefits and Trusteed Assets" and "Stock-Based Compensation," respectively.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net Income	$ 1,404	$ 1,397	$ 1,083

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Insider Trading Policies and Pr

Insider Trading Policies and Procedures	12 Months Ended
	Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Cybersecurity Risk Management a

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	DTE Energy maintains cybersecurity measures designed to protect its physical and digital infrastructure in order to provide safe and reliable delivery of energy to customers. These measures serve to maintain compliance with regulations and protect the confidentiality, integrity and availability of confidential and proprietary information, DTE Energy’s computing resources, and the electrical and gas systems. To protect against cybersecurity threats, DTE Energy employs a dedicated cybersecurity team led by the Chief Information Officer. The cybersecurity team is responsible for implementing proper safeguards to mitigate the risk of cyber threats, including but not limited to firewalls, continuous monitoring, and training. DTE Energy also engages with third parties to conduct cybersecurity maturity assessments to provide an independent and objective view of our cybersecurity and assess opportunities for improvement. The National Institute of Standards and Technology (NIST) Cybersecurity Framework (CSF) is the basis for these assessments to manage cyber risks, mature and monitor existing security controls, and communicate security posture coherently. The NIST CSF provides a common language to understand, manage, and express cyber risks internally and externally. Another component of DTE Energy’s cybersecurity team is the Cybersecurity Defense Center (CSDC), which has the primary responsibility for monitoring and responding to cybersecurity incidents. The CSDC maintains an incident response plan designed to protect against, detect, evaluate, and respond to and recover from a cyber incident. The CSDC may receive incident reports from DTE Energy employees, corporate security, or external sources. The incident response plan is intended to be flexible so it may be adapted to an array of potential scenarios. Depending on the incident, the CSDC may decide to engage external resources for assistance with responding to the incident. DTE Energy regularly conducts exercises to help ensure the plan’s effectiveness and overall preparedness. DTE Energy engages third-party service providers to assist with managing various aspects of its business. These service providers are subject to due diligence reviews of their information security programs prior to onboarding. DTE Energy also contractually requires service providers with access to its information technology (IT) systems, sensitive business data, or personal information to implement and maintain appropriate security controls and restricts their ability to use such data for purposes other than to provide services to DTE Energy, except as required by law. Third-party service providers are also contractually required to notify DTE Energy promptly of cyber incidents that may affect any systems or data. DTE Energy collaborates with its service providers to help determine whether their information security protocols are sufficient. If a service provider experiences a cyber incident, DTE Energy monitors their compliance with our security requirements; however, DTE Energy may not have the ability in all cases to effectively oversee the implementation of these control measures. The CSDC monitors and responds to actual and potential compromises from third-party service providers. Access from a potentially compromised third-party is restricted until DTE Energy receives confirmation the compromise has been mitigated. DTE Energy has experienced, and expects to continue to be subject to, cybersecurity threats and incidents. As of December 31, 2024, cybersecurity risks have not materially affected the Registrants’ business strategy, results of operations, or financial condition. For additional discussion of the risks related to cybersecurity threats and incidents, see Item 1A. "Risk Factors."
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	To protect against cybersecurity threats, DTE Energy employs a dedicated cybersecurity team led by the Chief Information Officer. The cybersecurity team is responsible for implementing proper safeguards to mitigate the risk of cyber threats, including but not limited to firewalls, continuous monitoring, and training.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Members of the Board of Directors serve roles on various committees responsible for their respective oversight and risk management.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	DTE Energy has an enterprise risk management program to reduce overall risk, including risks related to cybersecurity, through comprehensive risk assessments and execution of corresponding mitigation plans. Risks are reported and managed through various internal committees, which meet regularly and report at least annually to the Board of Directors. These committees include: • The Risk Management Committee (RMC) is chaired by the Chief Executive Officer and comprised of the Chief Financial Officer, Chief Legal Officer, General Auditor, and other senior officers. The RMC directs the development and maintenance of comprehensive risk management policies and procedures. The RMC also sets, reviews, and monitors risk limits for enterprise-level risk and other exposures • The Operational Risk and Resilience (ORR) Committee is chaired by the President and Chief Operating Officer and comprised of operational leaders in DTE Energy’s business units. The ORR is responsible for managing operational risks including safety, reliability, and cybersecurity at DTE Energy’s generation plants, substations, and other operating sites • The Technology Cybersecurity Committee (TCC) is a sub-committee of the ORR that focuses on information and operational technology risks related to cybersecurity, chaired by operational leaders in DTE Energy’s business units and includes the Chief Information Officer
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Audit Committee reports to the Board of Directors and may include any significant matters involving cybersecurity within its reporting. All members of the Board of Directors, including the Audit Committee, have either managerial knowledge or working knowledge of technology and cybersecurity matters.
Cybersecurity Risk Role of Management [Text Block]	DTE Energy’s Chief Information Officer leads the cybersecurity team and has responsibility for assessing and managing cybersecurity risks. The Chief Information Officer has held this position for over 10 years and has decades of experience in IT, including oversight of information protection security (IPS). The IPS cybersecurity team is also led by two full-time directors with over 40 combined years of industry experience, including (1) the director of cybersecurity operations responsible for the CSDC, identity and access assurance, and cloud security and (2) the IPS director of cybersecurity strategy, risk, and engagement who is also responsible for engagement and outreach to internal and external stakeholders. The Chief Information Officer provides regular updates to the Audit Committee and senior leaders regarding DTE Energy’s management of cyber risks, including but not limited to the status of various training metrics to safeguard against phishing, malware, and other cyber threats. The Chief Information Officer also provides an annual cybersecurity update directly to the Board of Directors. If cybersecurity risks arise, the CSDC executes the incident response plan and communicates the appropriate details to executive management, the Board of Directors, or any related committees. A cybersecurity incident may also require various levels of external reporting. The CSDC coordinates with the legal department and controller’s organization in reporting incidents externally. Depending on the nature of the incident, reporting may be required to various federal and state government agencies. DTE Energy has forged trusted partnerships with such agencies and with other companies and organizations to share best practices, tools, and threat information. This includes partnering with others in the utilities industry to form the Electricity Subsector Coordination Council (ESCC). The ESCC is the principal liaison between the energy sector and the federal government in coordinating efforts to prepare for and respond to any threats to critical infrastructure.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	DTE Energy’s Chief Information Officer leads the cybersecurity team and has responsibility for assessing and managing cybersecurity risks. The Chief Information Officer has held this position for over 10 years and has decades of experience in IT, including oversight of information protection security (IPS). The IPS cybersecurity team is also led by two full-time directors with over 40 combined years of industry experience, including (1) the director of cybersecurity operations responsible for the CSDC, identity and access assurance, and cloud security and (2) the IPS director of cybersecurity strategy, risk, and engagement who is also responsible for engagement and outreach to internal and external stakeholders. The Chief Information Officer provides regular updates to the Audit Committee and senior leaders regarding DTE Energy’s management of cyber risks, including but not limited to the status of various training metrics to safeguard against phishing, malware, and other cyber threats. The Chief Information Officer also provides an annual cybersecurity update directly to the Board of Directors. If cybersecurity risks arise, the CSDC executes the incident response plan and communicates the appropriate details to executive management, the Board of Directors, or any related committees.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	The Chief Information Officer has held this position for over 10 years and has decades of experience in IT, including oversight of information protection security (IPS). The IPS cybersecurity team is also led by two full-time directors with over 40 combined years of industry experience, including (1) the director of cybersecurity operations responsible for the CSDC, identity and access assurance, and cloud security and (2) the IPS director of cybersecurity strategy, risk, and engagement who is also responsible for engagement and outreach to internal and external stakeholders.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	The Chief Information Officer provides regular updates to the Audit Committee and senior leaders regarding DTE Energy’s management of cyber risks, including but not limited to the status of various training metrics to safeguard against phishing, malware, and other cyber threats. The Chief Information Officer also provides an annual cybersecurity update directly to the Board of Directors. If cybersecurity risks arise, the CSDC executes the incident response plan and communicates the appropriate details to executive management, the Board of Directors, or any related committees.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying Consolidated Financial Statements of the Registrants are prepared using accounting principles generally accepted in the United States of America. These accounting principles require management to use estimates and assumptions that impact reported amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities. Actual results may differ from the Registrants' estimates. The information in these combined notes relates to each of the Registrants as noted in the Index of Combined Notes to Consolidated Financial Statements. However, DTE Electric does not make any representation as to information related solely to DTE Energy or the subsidiaries of DTE Energy other than itself. Certain prior year balances for the Registrants were reclassified to match the current year's Consolidated Financial Statements presentation.
Principles of Consolidation	Principles of Consolidation The Registrants consolidate all majority-owned subsidiaries and investments in entities in which they have controlling influence. Non-majority owned investments are accounted for using the equity method when the Registrants are able to significantly influence the operating policies of the investee. When the Registrants do not influence the operating policies of an investee, the equity investment is valued at cost minus any impairments, if applicable. These Consolidated Financial Statements also reflect the Registrants' proportionate interests in certain jointly-owned utility plants. The Registrants eliminate all intercompany balances and transactions. The Registrants evaluate whether an entity is a VIE whenever reconsideration events occur. The Registrants consolidate VIEs for which they are the primary beneficiary. If a Registrant is not the primary beneficiary and an ownership interest is held, the VIE is accounted for under the equity method of accounting. When assessing the determination of the primary beneficiary, a Registrant considers all relevant facts and circumstances, including: the power, through voting or similar rights, to direct the activities of the VIE that most significantly impact the VIE's economic performance and the obligation to absorb the expected losses and/or the right to receive the expected returns of the VIE. The Registrants perform ongoing reassessments of all VIEs to determine if the primary beneficiary status has changed. Legal entities within the DTE Vantage segment enter into long-term contractual arrangements with customers to supply energy-related products or services. The entities are generally designed to pass-through the commodity risk associated with these contracts to the customers, with DTE Energy retaining operational and customer default risk. These entities generally are VIEs and consolidated when DTE Energy is the primary beneficiary. In addition, DTE Energy has interests in certain VIEs through which control of all significant activities is shared with partners, and therefore are generally accounted for under the equity method. The Registrants hold ownership interests in certain limited partnerships. The limited partnerships include investment funds which support regional development and economic growth, and an operational business providing energy-related products. These entities are generally VIEs as a result of certain characteristics of the limited partnership voting rights. The ownership interests are accounted for under the equity method as the Registrants are not the primary beneficiaries. DTE Energy has variable interests in VIEs through certain of its long-term purchase and sale contracts. DTE Electric has variable interests in VIEs through certain of its long-term purchase contracts. As of December 31, 2024, the carrying amount of assets and liabilities in DTE Energy's Consolidated Statements of Financial Position that relate to its variable interests under long-term purchase and sale contracts are predominantly related to working capital accounts and generally represent the amounts owed by or to DTE Energy for the deliveries associated with the current billing cycle under the contracts. As of December 31, 2024, the carrying amount of assets and liabilities in DTE Electric's Consolidated Statements of Financial Position that relate to its variable interests under long-term purchase contracts are predominantly related to working capital accounts and generally represent the amounts owed by DTE Electric for the deliveries associated with the current billing cycle under the contracts. The Registrants have not provided any significant form of financial support associated with these long-term contracts. There is no material potential exposure to loss as a result of DTE Energy's variable interests through these long-term purchase and sale contracts. In addition, there is no material potential exposure to loss as a result of DTE Electric's variable interests through these long-term purchase contracts. DTE Electric previously financed regulatory assets for deferred costs related to certain retired generation plants and its tree trimming surge program through the sale of bonds by wholly-owned special purpose entities, DTE Securitization I and DTE Securitization II (collectively "the DTE Securitization entities"). The DTE Securitization entities are VIEs. DTE Electric has the power to direct the most significant activities of these entities, including performing servicing activities such as billing and collecting surcharge revenue. Accordingly, DTE Electric is the primary beneficiary and the DTE Securitization entities are consolidated by the Registrants. Securitization bond holders have no recourse to the Registrants' assets, except for those held by the DTE Securitization entities. Surcharges collected by DTE Electric to pay for bond servicing and other qualified costs reflect securitization property solely owned by the DTE Securitization entities. These surcharges are remitted to a trustee and are not available to other creditors of the Registrants. The maximum risk exposure for consolidated VIEs is reflected on the Registrants' Consolidated Statements of Financial Position. For non-consolidated VIEs, the maximum risk exposure of the Registrants is generally limited to their investment and notes receivable.
Other Income	Other Income Other income for the Registrants is recognized for non-operating income such as equity earnings of equity method investees, allowance for equity funds used during construction, contract services, and certain investment income, primarily from trading securities held in DTE Energy's rabbi trust.
Accounting for ISO Transactions	Accounting for ISO Transactions DTE Electric participates in the energy market through MISO. MISO requires that DTE Electric submit hourly day-ahead, real-time, and FTR bids and offers for energy at locations across the MISO region. DTE Electric accounts for MISO transactions on a net hourly basis in each of the day-ahead, real-time, and FTR markets. In any single hour, transactions in each of the MISO energy markets are netted based on MWh to determine if DTE Electric is in a net sale or purchase position. Net purchases are recorded in Fuel, purchased power, and gas — utility and net sales are recorded in Operating Revenues — Utility operations on the Registrants' Consolidated Statements of Operations. The Energy Trading segment participates in the energy markets through various ISOs and RTOs. These markets require that Energy Trading submits hourly day-ahead, real-time bids and offers for energy at locations across each region. Energy Trading submits bids in the annual and monthly auction revenue rights and FTR auctions to the RTOs. Energy Trading accounts for these transactions on a net hourly basis for the day-ahead, real-time, and FTR markets. These transactions are related to trading contracts which, if derivatives, are presented on a net basis in Operating Revenues — Non-utility operations, and if non-derivatives, the realized gains and losses for sales are recorded in Operating Revenues — Non-utility operations and purchases are recorded in Fuel, purchased power, gas, and other — non-utility in the DTE Energy Consolidated Statements of Operations. DTE Electric and Energy Trading record accruals for future net purchase adjustments based on historical experience and reconcile accruals to actual costs when invoices are received from MISO and other ISOs and RTOs.
Derivatives	Derivatives The Registrants recognize all derivatives at their fair value as Derivative assets or liabilities on their respective Consolidated Statements of Financial Position unless they qualify for certain scope exceptions, including the normal purchases and normal sales exception. Further, derivatives that qualify and are designated for hedge accounting are classified as either hedges of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge); or as hedges of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge). For cash flow hedges, the derivative gain or loss is deferred in Accumulated other comprehensive income (loss) and later reclassified into earnings when the underlying transaction occurs. For fair value hedges, changes in fair values for the derivative and hedged item are recognized in earnings each period. For derivatives that do not qualify or are not designated for hedge accounting, changes in fair value are recognized in earnings each period. The Registrants' primary market risk exposure is associated with commodity prices, credit, and interest rates. The Registrants have risk management policies to monitor and manage market risks. The Registrants use derivative instruments to manage some of the exposure. DTE Energy uses derivative instruments for trading purposes in its Energy Trading segment. Contracts classified as derivative instruments include electricity, natural gas, oil, certain environmental contracts, forwards, futures, options, swaps, and foreign currency exchange contracts. Items not classified as derivatives include natural gas and environmental inventory, pipeline transportation contracts, some environmental contracts, and natural gas storage assets. DTE Electric — DTE Electric generates, purchases, distributes, and sells electricity. DTE Electric uses forward contracts to manage changes in the price of electricity and fuel. Substantially all of these contracts meet the normal purchases and normal sales exception and are therefore accounted for under the accrual method. Other derivative contracts are MTM and recoverable through the PSCR mechanism when settled. This results in the deferral of unrealized gains and losses as Regulatory assets or liabilities until realized. DTE Gas — DTE Gas purchases, stores, transports, distributes, and sells natural gas, and buys and sells transportation and storage capacity. DTE Gas has fixed-priced contracts for portions of its expected natural gas supply requirements through March 2027. Substantially all of these contracts meet the normal purchases and normal sales exception and are therefore accounted for under the accrual method. Forward transportation and storage contracts are generally not derivatives and are therefore accounted for under the accrual method. DTE Vantage — DTE Vantage manages and operates renewable gas recovery projects, power generation assets, and other customer specific energy solutions. Long-term contracts and hedging instruments are used in the marketing and management of the segment assets. These contracts and hedging instruments are generally not derivatives and are therefore accounted for under the accrual method. Energy Trading — Commodity Price Risk — Energy Trading markets and trades electricity, natural gas physical products, and energy financial instruments, and provides energy and asset management services utilizing energy commodity derivative instruments. Forwards, futures, options, and swap agreements are used to manage exposure to the risk of market price and volume fluctuations in its operations. These derivatives are accounted for by recording changes in fair value to earnings unless hedge accounting criteria are met. Energy Trading — Foreign Currency Exchange Risk — Energy Trading has foreign currency exchange forward contracts to economically hedge fixed Canadian dollar commitments existing under natural gas and power purchase and sale contracts and natural gas transportation contracts. Energy Trading enters into these contracts to mitigate price volatility with respect to fluctuations of the Canadian dollar relative to the U.S. dollar. These derivatives are accounted for by recording changes in fair value to earnings unless hedge accounting criteria are met. Corporate and Other — Interest Rate Risk — DTE Energy may use interest rate swaps, treasury locks, and other derivatives to hedge the risk associated with interest rate market volatility. Credit Risk — DTE Energy maintains credit policies that significantly minimize overall credit risk. These policies include an evaluation of potential customers’ and counterparties’ financial condition, including the viability of underlying productive assets, credit rating, collateral requirements, or other credit enhancements such as letters of credit or guarantees. DTE Energy generally uses standardized agreements that allow the netting of positive and negative transactions associated with a single counterparty. DTE Energy maintains a provision for credit losses based on factors surrounding the credit risk of its customers, historical trends, and other information. Based on DTE Energy's credit policies and its December 31, 2024 provision for credit losses, DTE Energy’s exposure to counterparty nonperformance is not expected to have a material adverse effect on DTE Energy's Consolidated Financial Statements.
Changes in Accumulated Other Comprehensive Income (Loss)	Changes in Accumulated Other Comprehensive Income (Loss) Comprehensive income (loss) is the change in common shareholders’ equity during a period from transactions and events from non-owner sources, including Net Income. The amounts recorded to Accumulated other comprehensive income (loss) for DTE Energy include changes in benefit obligations, consisting of deferred actuarial losses and prior service costs, unrealized gains and losses from derivatives accounted for as cash flow hedges, and foreign currency translation adjustments, if any. DTE Energy releases income tax effects from accumulated other comprehensive income when the circumstances upon which they are premised cease to exist.
Cash, Cash Equivalents, and Restricted Cash	Cash, Cash Equivalents, and Restricted Cash Cash and cash equivalents include cash on hand, cash in banks, and temporary investments purchased with maturities of three months or less. Restricted cash includes funds held in separate bank accounts and principally consists of amounts at DTE Securitization I and DTE Securitization II to pay for debt service and other qualified costs. Restricted cash also consists of funds held to satisfy contractual obligations related to a large construction project at DTE Vantage. Restricted cash designated for payments within one year is classified as a Current Asset.
Financing Receivables	Financing Receivables Financing receivables are primarily composed of trade receivables, notes receivable, and unbilled revenue. The Registrants' financing receivables are stated at net realizable value. DTE Energy had unbilled revenues of $992 million and $882 million at December 31, 2024 and 2023, respectively, including $303 million and $311 million of DTE Electric unbilled revenues, respectively, included in Customer Accounts receivable. The Registrants monitor the credit quality of their financing receivables on a regular basis by reviewing credit quality indicators and monitoring for trigger events, such as a credit rating downgrade or bankruptcy. Credit quality indicators include, but are not limited to, ratings by credit agencies where available, collection history, collateral, counterparty financial statements and other internal metrics. Utilizing such data, the Registrants have determined three internal grades of credit quality. Internal grade 1 includes financing receivables for counterparties where credit rating agencies have ranked the counterparty as investment grade. To the extent credit ratings are not available, the Registrants utilize other credit quality indicators to determine the level of risk associated with the financing receivable. Internal grade 1 may include financing receivables for counterparties for which credit rating agencies have ranked the counterparty as below investment grade; however, due to favorable information on other credit quality indicators, the Registrants have determined the risk level to be similar to that of an investment grade counterparty. Internal grade 2 includes financing receivables for counterparties with limited credit information and those with a higher risk profile based upon credit quality indicators. Internal grade 3 reflects financing receivables for which the counterparties have the greatest level of risk, including those in bankruptcy status. The following represents the Registrants' financing receivables by year of origination, classified by internal grade of credit risk, including current year-to-date gross write-offs, if any. The related credit quality indicators and risk ratings utilized to develop the internal grades have been updated through December 31, 2024. DTE Energy DTE Electric Year of origination 2024 2023 2022 and prior Total 2024 and prior (In millions) Notes receivable Internal grade 1 (a) $ — $ 1 $ 4 $ 5 $ 43 Internal grade 2 622 6 253 881 1 Total notes receivable (b) $ 622 $ 7 $ 257 $ 886 $ 44 Net investment in leases Internal grade 1 $ — $ — $ 36 $ 36 $ — Internal grade 2 4 — — 4 — Total net investment in leases (b) $ 4 $ — $ 36 $ 40 $ — _______________________________________ (a) For DTE Electric, includes Notes receivable — Affiliates balance of $42 million originated in 2024 that eliminates in consolidation for DTE Energy. Remaining balance for DTE Electric originated in 2023. (b) For DTE Energy, the current portion is included in Current Assets — Other on the Consolidated Statements of Financial Position. For DTE Electric, the amounts are included in Other Assets — Other on the Consolidated Statements of Financial Position. The allowance for doubtful accounts on accounts receivable for the utility entities is generally calculated using an aging approach that utilizes rates developed in reserve studies. DTE Electric and DTE Gas establish an allowance for uncollectible accounts based on historical losses and management's assessment of existing and future economic conditions, customer trends and other factors. Customer accounts are generally considered delinquent if the amount billed is not received by the due date, which is typically in 21 days, however, factors such as assistance programs may delay aggressive action. DTE Electric and DTE Gas generally assess late payment fees on trade receivables based on past-due terms with customers. Customer accounts are written off when collection efforts have been exhausted. The time period for write-off is 150 days after service has been terminated. The customer allowance for doubtful accounts for non-utility businesses and other receivables for both utility and non-utility businesses is generally calculated based on specific review of probable future collections based on receivable balances generally in excess of 30 days. Existing and future economic conditions, customer trends and other factors are also considered. Receivables are written off on a specific identification basis and determined based upon the specific circumstances of the associated receivable. Notes receivable for DTE Energy are primarily comprised of finance lease receivables and loans that are included in Notes Receivable and Other current assets on DTE Energy's Consolidated Statements of Financial Position. Notes receivable for DTE Electric are primarily comprised of loans. The Registrants establish an allowance for credit loss for principal and interest amounts due that are estimated to be uncollectible in accordance with the contractual terms of the note receivable. In determining the allowance for credit losses for notes receivable, the Registrants consider the historical payment experience and other factors that are expected to have a specific impact on the counterparty's ability to pay including existing and future economic conditions. Notes receivable are typically considered delinquent when payment is not received for periods ranging from 60 to 120 days. If amounts are no longer probable of collection, the Registrants may consider the note receivable impaired, adjust the allowance, and cease accruing interest (nonaccrual status). Cash payments received on nonaccrual status notes receivable, that do not bring the account contractually current, are first applied to the contractually owed past due interest, with any remainder applied to principal. Accrual of interest is generally resumed when the note receivable becomes contractually current. The following tables present a roll-forward of the activity for the Registrants' financing receivables credit loss reserves: DTE Energy DTE Electric Trade accounts receivable Other receivables Total Trade and other accounts receivable (In millions) Balance at December 31, 2021 $ 89 $ 3 $ 92 $ 54 Current period provision 49 — 49 33 Write-offs charged against allowance (105) (2) (107) (66) Recoveries of amounts previously written off 45 — 45 28 Balance at December 31, 2022 $ 78 $ 1 $ 79 $ 49 Current period provision 52 — 52 36 Write-offs charged against allowance (112) — (112) (72) Recoveries of amounts previously written off 44 — 44 28 Balance at December 31, 2023 $ 62 $ 1 $ 63 $ 41 Current period provision 74 2 76 49 Write-offs charged against allowance (108) — (108) (70) Recoveries of amounts previously written off 41 — 41 26 Balance at December 31, 2024 $ 69 $ 3 $ 72 $ 46 Uncollectible expense for the Registrants is primarily comprised of the current period provision for allowance for doubtful accounts and is summarized as follows: Year Ended December 31, 2024 2023 2022 (In millions) DTE Energy $ 74 $ 55 $ 55 DTE Electric $ 50 $ 38 $ 35 There are no material amounts of past due financing receivables for the Registrants as of December 31, 2024.
Inventories	Inventories Inventory related to utility and non-utility operations is valued at the lower of cost or net realizable value, where cost is generally valued using average cost. Inventory primarily includes fuel, gas, materials, and supplies. Other inventories include RECs, emission allowances, and other environmental products in the Energy Trading segment.
Property, Retirement and Maintenance, and Depreciation and Amortization and Capitalized Software	Property, Retirement and Maintenance, and Depreciation and Amortization Property is stated at cost and includes construction-related labor, materials, overheads, and AFUDC for utility property. The cost of utility properties retired is charged to accumulated depreciation. Expenditures for maintenance and repairs are charged to expense when incurred. Utility property at DTE Electric and DTE Gas is depreciated over its estimated useful life using straight-line rates approved by the MPSC. DTE Energy's non-utility property is depreciated over its estimated useful life using the straight-line method. Depreciation and amortization expense also includes the amortization of certain regulatory assets and liabilities for the Registrants. The cost of nuclear fuel is capitalized. The amortization of nuclear fuel is included within Fuel, purchased power, and gas — utility in the DTE Energy Consolidated Statements of Operations, and Fuel and purchased power in the DTE Electric Consolidated Statements of Operations, and is recorded using the units-of-production method. Capitalized software costs are classified as Property, plant, and equipment and the related amortization is included in Accumulated depreciation and amortization on the Registrants' Consolidated Statements of Financial Position. The Registrants capitalize the costs associated with computer software developed or obtained for use in their businesses. The Registrants amortize capitalized software costs on a straight-line basis over the expected period of benefit, ranging from 3 to 15 years for both DTE Energy and DTE Electric.
Long-Lived Assets	Long-Lived Assets Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. If the carrying amount of the asset exceeds the expected undiscounted future cash flows generated by the asset, an impairment loss is recognized resulting in the asset being written down to its estimated fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less costs to sell.
Goodwill	Goodwill
Intangible Assets	DTE Energy amortizes contract intangible assets on a straight-line basis over the expected period of benefit.
Cloud Computing Arrangements	Cloud Computing Arrangements The Registrants capitalize implementation costs incurred in a cloud computing arrangement that is a service contract consistent with capitalized implementation costs incurred to develop or obtain internal-use software. Capitalized costs are recorded in Other noncurrent assets on the Consolidated Statements of Financial Position and amortization of the costs is reflected in Operation and maintenance within the Consolidated Statements of Operations. Costs are amortized on a straight-line basis over the life of the contract. Contracts primarily involve the implementation or upgrade of cloud-based solutions for generation and distribution operations and customer service support.
Excise and Sales Taxes and Income Taxes	Excise and Sales Taxes The Registrants record the billing of excise and sales taxes as a receivable with an offsetting payable to the applicable taxing authority, with no net impact on the Registrants’ Consolidated Statements of Operations. Deferred tax assets and liabilities are recognized for the estimated future tax effect of temporary differences between the tax basis of assets or liabilities and the reported amounts in the Registrants' Consolidated Financial Statements.
Deferred Debt Costs	Deferred Debt Costs The costs related to the issuance of long-term debt are deferred and amortized over the life of each debt issue. The deferred amounts are included as a direct deduction from the carrying amount of each debt issue in Mortgage bonds, notes, and other and Securitization bonds on the Registrants' Consolidated Statements of Financial Position and in Junior subordinated debentures on DTE Energy's Consolidated Statements of Financial Position. In accordance with MPSC regulations applicable to DTE Energy’s electric and gas utilities, the unamortized discount, premium, and expense related to utility debt redeemed with a refinancing are amortized over the life of the replacement issue. Discounts, premiums, and expense on early redemptions of debt associated with DTE Energy's non-utility operations are charged to earnings.
Investments in Debt and Equity Securities	Investments in Debt and Equity Securities
DTE Energy Foundation	DTE Energy Foundation DTE Energy made a charitable contribution to the DTE Energy Foundation of $10 million for the year ended December 31, 2024. There were no contributions for the years ended December 31, 2023 and 2022. The DTE Energy Foundation is a non-consolidated not-for-profit private foundation, the purpose of which is to contribute to and assist charitable organizations.
New Accounting Pronouncements	Recently Adopted Pronouncements In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures . The amendments in this update require disclosure of incremental segment information and the title and position of the chief operating decision maker ("CODM"). Registrants are required to disclose significant segment expenses that are regularly provided to the CODM, as well as additional information on segment profit and loss measures and how such information is used by the CODM to assess segment performance and allocate resources. The Registrants adopted the ASU for the fiscal year ended December 31, 2024, and will adopt for interim periods beginning January 1, 2025, on a retrospective basis. The Reportable Segments disclosures have been updated to reflect these requirements. Refer to Note 21 to the Consolidated Financial Statements, "Segment and Related Information." Recently Issued Pronouncements In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures . The amendments in this update require enhanced income tax disclosures, particularly related to a reporting entity's effective tax rate reconciliation and income taxes paid. For the rate reconciliation table, the update requires additional categories of information about federal, state, and foreign taxes and details about significant reconciling items, subject to a quantitative threshold. Income taxes paid must be similarly disaggregated by federal, state, and foreign based on a quantitative threshold. The ASU is effective for the Registrants for annual periods beginning after December 15, 2024. The guidance shall be applied on a prospective basis with the option to apply retrospectively. Early adoption is permitted. The Registrants will apply the guidance upon the effective date. In November 2024, the FASB issued ASU No. 2024-03, Income Statement-Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-04) : Disaggregation of Income Statement Expenses, as amended. The amendments in this update require disaggregated disclosure of income statement expense captions into specified categories in disclosures within the footnotes to the financial statements. The ASU is effective for the Registrants for annual reporting periods beginning after December 15, 2026, and for interim reporting periods beginning after December 15, 2027. The guidance may be applied on a prospective or retrospective basis. Early adoption is permitted. The Registrants will apply the guidance upon the effective date.
Revenue	Revenue is measured based upon the consideration specified in a contract with a customer at the time when performance obligations are satisfied. A performance obligation is a promise in a contract to transfer a distinct good or service or a series of distinct goods or services to the customer. The Registrants recognize revenue when performance obligations are satisfied by transferring control over a product or service to a customer. The Registrants have determined control to be transferred when the product is delivered, or the service is provided to the customer. Rates for DTE Electric and DTE Gas include provisions to adjust billings for fluctuations in fuel and purchased power costs, cost of natural gas, and certain other costs. Revenues are adjusted for differences between actual costs subject to reconciliation and the amounts billed in current rates. Under or over recovered revenues related to these cost recovery mechanisms are included in Regulatory assets or liabilities on the Registrants' Consolidated Statements of Financial Position and are recovered or returned to customers through adjustments to the billing factors.
Asset Retirement Obligations	DTE Electric has a legal retirement obligation for the decommissioning costs for its Fermi 1 and Fermi 2 nuclear plants, dismantlement of facilities located on leased property, and various other operations. DTE Electric has conditional retirement obligations for asbestos and PCB removal at certain of its power plants and various distribution equipment. DTE Gas has conditional retirement obligations for gas pipelines, certain service centers, and compressor and gate stations. The Registrants recognize such obligations as liabilities at fair market value when they are incurred, which generally is at the time the associated assets are placed in service. Fair value is measured using expected future cash outflows discounted at the Registrants' credit-adjusted risk-free rate. For its utility operations, the Registrants recognize in the Consolidated Statements of Operations removal costs in accordance with regulatory treatment. Any differences between costs recognized related to asset retirement and those reflected in rates are recognized as either a Regulatory asset or liability on the Consolidated Statements of Financial Position. If a reasonable estimate of fair value cannot be made in the period in which the retirement obligation is incurred, such as for assets with indeterminate lives, the liability is recognized when a reasonable estimate of fair value can be made. Natural gas storage system and certain other distribution assets for DTE Gas and substations, manholes, and certain other distribution assets for DTE Electric have an indeterminate life. Therefore, no liability has been recorded for these assets.
Regulatory Assets and Liabilities	Regulatory Assets and Liabilities DTE Electric and DTE Gas are required to record Regulatory assets and liabilities for certain transactions that would have been treated as revenue or expense in non-regulated businesses. Continued applicability of regulatory accounting treatment requires that rates be designed to recover specific costs of providing regulated services and be charged to and collected from customers. Future regulatory changes could result in the discontinuance of this accounting treatment for Regulatory assets and liabilities for some or all of the Registrants' businesses and may require the write-off of the portion of any Regulatory asset or liability that was no longer probable of recovery through regulated rates. Management believes that currently available facts support the continued use of Regulatory assets and liabilities and that all Regulatory assets and liabilities are recoverable or refundable in the current regulatory environment.
Fair Value Measurement	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in a principal or most advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants use in pricing assets or liabilities. These inputs can be readily observable, market corroborated, or generally unobservable inputs. The Registrants make certain assumptions they believe that market participants would use in pricing assets or liabilities, including assumptions about risk, and the risks inherent in the inputs to valuation techniques. Credit risk of the Registrants and their counterparties is incorporated in the valuation of assets and liabilities through the use of credit reserves, the impact of which was immaterial at December 31, 2024 and 2023. The Registrants believe they use valuation techniques that maximize the use of observable market-based inputs and minimize the use of unobservable inputs. A fair value hierarchy has been established that prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall in different levels of the fair value hierarchy. All assets and liabilities are required to be classified in their entirety based on the lowest level of input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability and may affect the valuation of the asset or liability and its placement within the fair value hierarchy. The Registrants classify fair value balances based on the fair value hierarchy defined as follows: • Level 1 — Consists of unadjusted quoted prices in active markets for identical assets or liabilities that the Registrants have the ability to access as of the reporting date. • Level 2 — Consists of inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data. • Level 3 — Consists of unobservable inputs for assets or liabilities whose fair value is estimated based on internally developed models or methodologies using inputs that are generally less readily observable and supported by little, if any, market activity at the measurement date. Unobservable inputs are developed based on the best available information and subject to cost-benefit constraints.
Nuclear Decommissioning Trusts and Other Investments	Nuclear Decommissioning Trusts and Other Investments The nuclear decommissioning trusts and other investments hold debt and equity securities directly and indirectly through commingled funds. Exchange-traded debt and equity securities held directly, as well as publicly traded commingled funds, are valued using quoted market prices in actively traded markets. Non-exchange traded fixed income securities are valued based upon quotations available from brokers or pricing services. Non-publicly traded commingled funds holding exchange-traded equity or debt securities are valued based on stated NAVs. There are no significant restrictions for these funds and investments may be redeemed with 7 to 65 days notice depending on the fund. There is no intention to sell the investment in these commingled funds. Private equity and other assets include a diversified group of funds that are primarily classified as NAV assets. These funds primarily invest in limited partnerships, including private equity, private real estate and private credit. Distributions are received through the liquidation of the underlying fund assets over the life of the funds. There are generally no redemption rights. The limited partner must hold the fund for its life or find a third-party buyer, which may need to be approved by the general partner. The funds are established with varied contractual durations generally in the range of 7 years to 12 years. The fund life can often be extended by several years by the general partner, and further extended with the approval of the limited partners. Unfunded commitments related to these investments totaled $120 million and $157 million as of December 31, 2024 and 2023, respectively. Hedge funds and similar investments utilize a diversified group of strategies that attempt to capture uncorrelated sources of return. These investments include publicly traded mutual funds that are valued using quoted prices in actively traded markets, as well as insurance-linked and asset-backed securities and that are valued using quotations from broker or pricing services and limited partnerships that are classified as NAV assets. For pricing the nuclear decommissioning trusts and other investments, a primary price source is identified by asset type, class, or issue for each security. The trustee monitors prices supplied by pricing services and may use a supplemental price source or change the primary source of a given security if the trustee determines that another price source is considered preferable. The Registrants have obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices.
Derivative Assets and Liabilities	Derivative Assets and Liabilities Derivative assets and liabilities are comprised of physical and financial derivative contracts, including futures, forwards, options, and swaps that are both exchange-traded and over-the-counter traded contracts. Various inputs are used to value derivatives depending on the type of contract and availability of market data. Exchange-traded derivative contracts are valued using quoted prices in active markets. The Registrants consider the following criteria in determining whether a market is considered active: frequency in which pricing information is updated, variability in pricing between sources or over time, and the availability of public information. Other derivative contracts are valued based upon a variety of inputs including commodity market prices, broker quotes, interest rates, credit ratings, default rates, market-based seasonality, and basis differential factors. The Registrants monitor the prices that are supplied by brokers and pricing services and may use a supplemental price source or change the primary price source of an index if prices become unavailable or another price source is determined to be more representative of fair value. The Registrants have obtained an understanding of how these prices are derived. Additionally, the Registrants selectively corroborate the fair value of their transactions by comparison of market-based price sources. Mathematical valuation models are used for derivatives for which external market data is not readily observable, such as contracts which extend beyond the actively traded reporting period. The Registrants have established a Risk Management Committee whose responsibilities include directly or indirectly ensuring all valuation methods are applied in accordance with predefined policies. The development and maintenance of the Registrants' forward price curves has been assigned to DTE Energy's Risk Management Department, which is separate and distinct from the trading functions within DTE Energy.
Fair Value Transfer	Derivatives are transferred between levels primarily due to changes in the source data used to construct price curves as a result of changes in market liquidity. Transfers in and transfers out are reflected as if they had occurred at the beginning of the period.
Derivatives, Offsetting Fair Value Amounts	Certain of DTE Energy's derivative positions are subject to netting arrangements which provide for offsetting of asset and liability positions as well as related cash collateral. Such netting arrangements generally do not have restrictions. Under such netting arrangements, DTE Energy offsets the fair value of derivative instruments with cash collateral received or paid for those contracts executed with the same counterparty, which reduces DTE Energy's Total Assets and Liabilities. Cash collateral is allocated between the fair value of derivative instruments and customer accounts receivable and payable with the same counterparty on a pro-rata basis to the extent there is exposure. Any cash collateral remaining, after the exposure is netted to zero, is reflected in Accounts receivable and Accounts payable as collateral paid or received, respectively. DTE Energy also provides and receives collateral in the form of letters of credit which can be offset against net Derivative assets and liabilities as well as Accounts receivable and payable. DTE Energy had letters of credit of $1 million issued and outstanding at December 31, 2024 and $3 million at December 31, 2023, which could be used to offset net Derivative liabilities. There were no letters of credit received from third parties which could be used to offset net Derivative assets at December 31, 2024 and there were $10 million at December 31, 2023. Such balances of letters of credit are excluded from the tables below and are not netted with the recognized assets and liabilities in DTE Energy's Consolidated Statements of Financial Position. For contracts with certain clearing agents, the fair value of derivative instruments is netted against realized positions with the net balance reflected as either 1) a Derivative asset or liability or 2) an Account receivable or payable. Other than certain clearing agents, Accounts receivable and Accounts payable that are subject to netting arrangements have not been offset against the fair value of Derivative assets and liabilities.
Derivatives, Methods of Accounting	Revenues and energy costs related to trading contracts are presented on a net basis in DTE Energy's Consolidated Statements of Operations. Commodity derivatives used for trading purposes, and financial non-trading commodity derivatives, are accounted for using the MTM method with unrealized and realized gains and losses recorded in Operating Revenues — Non-utility operations. Non-trading physical commodity sale and purchase derivative contracts are generally accounted for using the MTM method with unrealized and realized gains and losses for sales recorded in Operating Revenues — Non-utility operations and purchases recorded in Fuel, purchased power, gas, and other — non-utility.
Lessee	Lessee Leases at DTE Energy and DTE Electric are primarily comprised of various forms of certain easement leases, coal railcars, building equipment, and computer hardware, leases with terms ranging from approximately 1 to 52 years. A lease is deemed to exist when the Registrants have the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration paid. The right to control is deemed to occur when the Registrants have the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets. Lease liabilities are determined utilizing a discount rate to determine the present values of lease payments. Topic 842 requires the use of the rate implicit in the lease when it is readily determinable. When the rate implicit in the lease is not readily determinable, the incremental borrowing rate is used. The Registrants have determined their respective incremental borrowing rates based upon the rate of interest that would have been paid on a collateralized basis over similar tenors to that of the leases. The incremental borrowing rates for DTE Electric and DTE Gas have been determined utilizing respective secured borrowing rates for first mortgage bonds with like tenors of remaining lease terms. Incremental borrowing rates for non-utility entities have been determined utilizing an implied secured borrowing rate based upon an unsecured rate for a similar tenor of remaining lease terms, which is then adjusted for the estimated impact of collateral. Certain leases of the Registrants contain escalation clauses whereby the payments are adjusted for consumer price or labor indices. The Registrants have leases with non-index based escalation clauses for percentage increases. DTE Energy also has leases with variable payments based upon usage of, or revenues associated with, the leased assets. DTE Electric also has leases with variable payments based upon the usage of the leased assets. Certain leases of easements and coal railcars contain provisions whereby the Registrants have the option to terminate the lease agreement by giving notice of such termination during the time frames specified in the respective lease. The Registrants have considered such provisions in the determination of the lease term when it is reasonably certain that the lease would be terminated. The Registrants have certain leases which contain purchase options. Based upon the nature of the leased property and terms of the purchase options, the Registrants have determined it is not reasonably certain that such purchase options will be utilized. Thus, the impact of the purchase options has not been included in the determination of right-of-use assets and lease liabilities for the subject leases. The Registrants have certain leases which contain renewal options. Where the renewal options were deemed reasonably certain to occur, the impacts of such options were included in the determination of the right of use assets and lease liabilities. The Registrants have agreements with lease and non-lease components, which are generally accounted for separately. Consideration in a lease is allocated between lease and non-lease components based upon the estimated relative standalone prices. The Registrants have certain coal railcar leases for which non-lease and lease components are accounted for as a single lease component, as permitted under Topic 842.
Lessor	Lessor DTE Energy leases various assets under operating leases for a pipeline, energy facilities and related equipment. Such leases are comprised of both fixed payments and variable payments which are contingent on volumes, with terms ranging from 9 to 24 years. Generally, the operating leases do not have renewal provisions or options to purchase the assets at the end of the lease. The operating leases generally do not have termination for convenience provisions. Termination may be allowed under specific circumstances stated in the lease contract, such as under an event of default. Certain of the finance and operating leases have lease terms that extend to the end of the estimated economic life of the leased assets, thereby resulting in no residual value. Any remaining residual values under the finance and operating leases are expected to be recovered through rates, renewals or new lease contracts. Residual values have been determined using the estimated economic life of the leased assets. The finance and operating leases do not contain residual value guarantees. Certain of the operating leases have both lease and non-lease components. The lease and non-lease components are allocated based upon estimated relative standalone selling prices. A lease is deemed to exist when the Registrants have provided other parties with the right to control the use of identified property, plant or equipment, as conveyed through a contract, for a certain period of time and consideration received. The right to control is deemed to occur when the Registrants have provided other parties with the right to obtain substantially all of the economic benefits of the identified assets and the right to direct the use of such assets.
Stock-Based Compensation	DTE Energy records compensation expense at fair value over the vesting period for all awards it grants.

Organization and Basis of Pre_2

Organization and Basis of Presentation (Tables)	12 Months Ended
	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Variable Interest Entities	The table below summarizes the major Consolidated Statements of Financial Position items for consolidated VIEs as of December 31, 2024 and 2023. All assets and liabilities of a consolidated VIE are presented where it has been determined that a consolidated VIE has either (1) assets that can be used only to settle obligations of the VIE or (2) liabilities for which creditors do not have recourse to the general credit of the primary beneficiary. Assets and liabilities of the DTE Securitization entities have been aggregated due to their similar nature and are separately stated in the table below, comprising the entirety of the DTE Electric amounts. For all other VIEs, assets and liabilities are also aggregated due to their similar nature and presented together with the DTE Securitization entities in the DTE Energy amounts below. VIEs, in which DTE Energy holds a majority voting interest and is the primary beneficiary, that meet the definition of a business and whose assets can be used for purposes other than the settlement of the VIE's obligations have been excluded from the table. Amounts for the Registrants' consolidated VIEs are as follows: December 31, 2024 2023 DTE Energy DTE Electric DTE Energy DTE Electric (In millions) ASSETS Cash and cash equivalents $ 6 $ — $ 7 $ — Restricted cash 64 48 25 17 Accounts receivable 27 6 85 6 Securitized regulatory assets 690 690 758 758 Notes receivable (a) 657 — 183 — Other current and long-term assets 1 — 4 1 $ 1,445 $ 744 $ 1,062 $ 782 LIABILITIES Accounts payable $ 26 — $ 59 $ — Accrued interest 12 12 6 6 Regulatory liabilities — current 27 27 8 8 Securitization bonds (b) 706 706 769 769 Other current and long-term liabilities 20 — 12 — $ 791 $ 745 $ 854 $ 783 _______________________________________ (a) At December 31, 2024, Notes Receivable includes $14 million reported in Current Assets — Other on DTE Energy's Consolidated Statements of Financial Position. (b) Includes $71 million and $64 million reported in Current portion of long-term debt on the Registrants' Consolidated Statements of Financial Position for the periods ended December 31, 2024 and December 31, 2023, respectively.
Summary of Amounts For Nonconsolidated Variable Interest Entities	Amounts for DTE Energy's non-consolidated VIEs are as follows: December 31, 2024 2023 (In millions) Investments in equity method investees $ 65 $ 112 Notes receivable $ — $ 15

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Schedule of Other Income	The following is a summary of DTE Energy's Other income: 2024 2023 2022 (In millions) Allowance for equity funds used during construction $ 86 $ 42 $ 29 Contract services 34 26 28 Investment income (a) 17 17 3 Equity earnings (losses) of equity method investees 15 3 (14) Other 15 14 12 $ 167 $ 102 $ 58 _______________________________________ (a) Investment losses are recorded separately to Other expenses on the Consolidated Statements of Operations. The following is a summary of DTE Electric's Other income: 2024 2023 2022 (In millions) Allowance for equity funds used during construction $ 84 $ 40 $ 26 Contract services 33 25 27 Investment income (a) 13 11 3 Other 14 11 9 $ 144 $ 87 $ 65 _______________________________________ (a) Investment losses are recorded separately to Other expenses on the Consolidated Statements of Operations.
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the changes in DTE Energy's Accumulated other comprehensive income (loss) by component (a) for the years ended December 31, 2024 and 2023: Net Unrealized Gain (Loss) on Derivatives Benefit Obligations (b) Foreign Currency Translation Total (In millions) Balance, December 31, 2022 $ (4) $ (58) $ — $ (62) Other comprehensive income (loss) before reclassifications (14) 3 2 (9) Amounts reclassified from Accumulated other comprehensive loss 1 3 — 4 Net current period Other comprehensive income (loss) (13) 6 2 (5) Balance, December 31, 2023 $ (17) $ (52) $ 2 $ (67) Other comprehensive income (loss) before reclassifications 47 (3) (7) 37 Amounts reclassified from Accumulated other comprehensive loss — 4 — 4 Net current period Other comprehensive income (loss) 47 1 (7) 41 Balance, December 31, 2024 $ 30 $ (51) $ (5) $ (26) ______________________________________ (a) All amounts are net of tax, except for foreign currency translation. (b) Benefit obligations activity includes changes in actuarial (gain) loss and prior service cost in DTE Energy's pension and other postretirement benefit plans. Refer to Note 19 to the Consolidated Financial Statements, "Retirement Benefits and Trusteed Assets," for details regarding this activity.
Schedule of Financing Receivables Classified by Internal Grade of Credit Risk	The related credit quality indicators and risk ratings utilized to develop the internal grades have been updated through December 31, 2024. DTE Energy DTE Electric Year of origination 2024 2023 2022 and prior Total 2024 and prior (In millions) Notes receivable Internal grade 1 (a) $ — $ 1 $ 4 $ 5 $ 43 Internal grade 2 622 6 253 881 1 Total notes receivable (b) $ 622 $ 7 $ 257 $ 886 $ 44 Net investment in leases Internal grade 1 $ — $ — $ 36 $ 36 $ — Internal grade 2 4 — — 4 — Total net investment in leases (b) $ 4 $ — $ 36 $ 40 $ — _______________________________________ (a) For DTE Electric, includes Notes receivable — Affiliates balance of $42 million originated in 2024 that eliminates in consolidation for DTE Energy. Remaining balance for DTE Electric originated in 2023. (b) For DTE Energy, the current portion is included in Current Assets — Other on the Consolidated Statements of Financial Position. For DTE Electric, the amounts are included in Other Assets — Other on the Consolidated Statements of Financial Position.
Schedule of Roll-Forward of Activity for Financing Receivables Credit Loss Reserves	The following tables present a roll-forward of the activity for the Registrants' financing receivables credit loss reserves: DTE Energy DTE Electric Trade accounts receivable Other receivables Total Trade and other accounts receivable (In millions) Balance at December 31, 2021 $ 89 $ 3 $ 92 $ 54 Current period provision 49 — 49 33 Write-offs charged against allowance (105) (2) (107) (66) Recoveries of amounts previously written off 45 — 45 28 Balance at December 31, 2022 $ 78 $ 1 $ 79 $ 49 Current period provision 52 — 52 36 Write-offs charged against allowance (112) — (112) (72) Recoveries of amounts previously written off 44 — 44 28 Balance at December 31, 2023 $ 62 $ 1 $ 63 $ 41 Current period provision 74 2 76 49 Write-offs charged against allowance (108) — (108) (70) Recoveries of amounts previously written off 41 — 41 26 Balance at December 31, 2024 $ 69 $ 3 $ 72 $ 46
Schedule of Uncollectible Expense	Uncollectible expense for the Registrants is primarily comprised of the current period provision for allowance for doubtful accounts and is summarized as follows: Year Ended December 31, 2024 2023 2022 (In millions) DTE Energy $ 74 $ 55 $ 55 DTE Electric $ 50 $ 38 $ 35
Schedule of Finite-Lived Intangible Assets	The Registrants have certain Intangible assets as shown below: December 31, 2024 December 31, 2023 Useful Lives Gross Carrying Value Accumulated Amortization Net Carrying Value Gross Carrying Value Accumulated Amortization Net Carrying Value (In millions) Intangible assets subject to amortization Contract intangibles 12 to 26 years $ 246 $ (119) $ 127 $ 246 $ (103) $ 143 Carbon offsets 14 — 14 10 — 10 Renewable energy credits 1 — 1 2 — 2 Other 2 — 2 1 — 1 Intangible assets not subject to amortization (a) 17 — 17 13 — 13 DTE Energy Long-term intangible assets $ 263 $ (119) $ 144 $ 259 $ (103) $ 156 ______________________________________ (a) Amounts are charged to expense, using average cost, as they are consumed in the operation of the business. DTE Electric intangible assets include the Renewable energy credits above, which are included in Other Assets — Other on the DTE Electric Consolidated Statements of Financial Position.
Schedule of Indefinite-Lived Intangible Assets	The Registrants have certain Intangible assets as shown below: December 31, 2024 December 31, 2023 Useful Lives Gross Carrying Value Accumulated Amortization Net Carrying Value Gross Carrying Value Accumulated Amortization Net Carrying Value (In millions) Intangible assets subject to amortization Contract intangibles 12 to 26 years $ 246 $ (119) $ 127 $ 246 $ (103) $ 143 Carbon offsets 14 — 14 10 — 10 Renewable energy credits 1 — 1 2 — 2 Other 2 — 2 1 — 1 Intangible assets not subject to amortization (a) 17 — 17 13 — 13 DTE Energy Long-term intangible assets $ 263 $ (119) $ 144 $ 259 $ (103) $ 156 ______________________________________ (a) Amounts are charged to expense, using average cost, as they are consumed in the operation of the business. DTE Electric intangible assets include the Renewable energy credits above, which are included in Other Assets — Other on the DTE Electric Consolidated Statements of Financial Position.
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The following table summarizes DTE Energy's estimated contract intangible amortization expense expected to be recognized during each year through 2029: 2025 2026 2027 2028 2029 (In millions) Estimated amortization expense $ 15 $ 15 $ 15 $ 14 $ 14
Schedule of Capitalized Cloud Computing Costs	The following balances for cloud computing costs relate to DTE Energy: Year Ended December 31, 2024 2023 2022 (In millions) Amortization expense of capitalized cloud computing costs $ 12 $ 10 $ 4 Gross value of capitalized cloud computing costs $ 64 $ 56 Accumulated amortization of capitalized cloud computing costs $ 27 $ 15 The following balances for cloud computing costs relate to DTE Electric: Year Ended December 31, 2024 2023 2022 (In millions) Amortization expense of capitalized cloud computing costs $ 10 $ 8 $ 3 Gross value of capitalized cloud computing costs $ 51 $ 44 Accumulated amortization of capitalized cloud computing costs $ 22 $ 12
Schedule of Accounting Policies	See the following notes for other accounting policies impacting the Registrants’ Consolidated Financial Statements: Note Title 4 Revenue 5 Property, Plant, and Equipment 7 Asset Retirement Obligations 8 Regulatory Matters 9 Income Taxes 11 Fair Value 12 Financial and Other Derivative Instruments 16 Leases 19 Retirement Benefits and Trusteed Assets 20 Stock-Based Compensation 21 Segment and Related Information 22 Related Party Transactions

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following is a summary of revenues disaggregated by segment for DTE Energy: 2024 2023 2022 (In millions) Electric (a) Residential $ 3,045 $ 2,847 $ 2,911 Commercial 2,263 2,114 1,958 Industrial 715 732 659 Other (b) 270 125 884 Total Electric operating revenues $ 6,293 $ 5,818 $ 6,412 Gas Gas sales $ 1,307 $ 1,324 $ 1,442 End User Transportation 246 250 264 Intermediate Transportation 83 85 81 Other (b) 162 89 137 Total Gas operating revenues $ 1,798 $ 1,748 $ 1,924 Other segment operating revenues DTE Vantage $ 753 $ 809 $ 848 Energy Trading $ 3,843 $ 4,612 $ 10,308 _______________________________________ (a) Revenues generally represent those of DTE Electric, except $16 million, $14 million, and $15 million of Other revenues related to DTE Sustainable Generation for the years ended December 31, 2024, 2023, and 2022, respectively. (b) Includes revenue adjustments related to various regulatory mechanisms, including the PSCR at the Electric segment and GCR at the Gas segment. Revenues related to these mechanisms may vary based on changes in the cost of fuel, purchased power, and gas. Revenues included the following which were outside the scope of Topic 606: 2024 2023 2022 (In millions) Electric — Alternative Revenue Programs $ 43 $ 36 $ 35 Electric — Other revenues $ 25 $ 22 $ 19 Gas — Alternative Revenue Programs $ 21 $ 16 $ 9 Gas — Other revenues $ 11 $ 8 $ 7 DTE Vantage — Leases $ 60 $ 59 $ 82 Energy Trading — Derivatives $ 2,540 $ 3,436 $ 8,489
Summary of Deferred Revenue Activity	The following is a summary of deferred revenue activity for DTE Energy: 2024 2023 (In millions) Beginning Balance, January 1 $ 106 $ 94 Increases due to cash received or receivable, excluding amounts recognized as revenue during the period 132 103 Revenue recognized that was included in the deferred revenue balance at the beginning of the period (100) (91) Ending Balance, December 31 $ 138 $ 106
Deferred Revenue Amounts Expected to be Recognized as Revenue in Future Periods	The following table represents deferred revenue amounts for DTE Energy that are expected to be recognized as revenue in future periods: DTE Energy (In millions) 2025 $ 135 2026 1 2027 1 2028 1 2029 — 2030 and thereafter — $ 138 The Registrants expect to recognize revenue for the following amounts related to fixed consideration associated with remaining performance obligations in each of the future periods noted: DTE Energy DTE Electric (In millions) 2025 $ 225 $ 1 2026 170 — 2027 133 — 2028 90 — 2029 77 — 2030 and thereafter 327 — $ 1,022 $ 1

Property, Plant, and Equipment

Property, Plant, and Equipment (Tables)	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
PP&E by Classification, Summary of Depreciation and Amortization	The following is a summary of Property, plant, and equipment by classification as of December 31: 2024 2023 Property, plant, and equipment (In millions) DTE Electric Distribution $ 14,995 $ 13,673 Dispatchable generation 8,428 7,969 Renewable generation 3,933 3,074 Other 3,445 3,220 Total DTE Electric 30,801 27,936 DTE Gas Distribution 6,334 5,838 Transmission 1,212 1,132 Storage 586 578 Other 500 481 Total DTE Gas 8,632 8,029 DTE Vantage 1,135 1,075 Other 272 234 Total DTE Energy $ 40,840 $ 37,274 Accumulated depreciation and amortization DTE Electric Distribution $ (3,513) $ (3,205) Dispatchable generation (2,146) (1,872) Renewable generation (615) (524) Other (1,130) (969) Total DTE Electric (7,404) (6,570) DTE Gas Distribution (1,319) (1,365) Transmission (278) (300) Storage (138) (132) Other (210) (193) Total DTE Gas (1,945) (1,990) DTE Vantage (520) (479) Other (78) (66) Total DTE Energy $ (9,947) $ (9,105) Net DTE Energy Property, plant, and equipment $ 30,893 $ 28,169 Net DTE Electric Property, plant, and equipment $ 23,397 $ 21,366 The following is a summary of Depreciation and amortization expense for DTE Energy: 2024 2023 2022 (In millions) Property, plant, and equipment $ 1,316 $ 1,239 $ 1,148 Regulatory assets and liabilities 394 344 297 Intangible assets 16 15 16 Other 6 8 7 $ 1,732 $ 1,606 $ 1,468 The following is a summary of Depreciation and amortization expense for DTE Electric: 2024 2023 2022 (In millions) Property, plant, and equipment $ 1,089 $ 1,029 $ 951 Regulatory assets and liabilities 338 292 248 Other 5 5 5 $ 1,432 $ 1,326 $ 1,204
Schedule of AFUDC and Capitalized Interest Rates	The AFUDC and capitalized interest rates were as follows for the years ended December 31: 2024 2023 2022 DTE Electric AFUDC 5.56 % 5.53 % 5.46 % DTE Gas AFUDC 5.45 % 5.41 % 5.41 % Non-regulated businesses capitalized interest 4.25 % 3.00 % 3.00 %
Schedule of AFUDC and Interest Capitalized	The following is a summary of AFUDC and interest capitalized for the years ended December 31: 2024 2023 2022 DTE Energy (In millions) Allowance for debt funds used during construction and interest capitalized $ 36 $ 20 $ 13 Allowance for equity funds used during construction 86 42 29 Total $ 122 $ 62 $ 42 2024 2023 2022 DTE Electric (In millions) Allowance for debt funds used during construction $ 34 $ 15 $ 11 Allowance for equity funds used during construction 84 40 26 Total $ 118 $ 55 $ 37
Schedule of Utility Property, Plant, and Equipment	The average estimated useful life for each major class of utility Property, plant, and equipment as of December 31, 2024 follows: Estimated Useful Lives in Years Utility Distribution Generation Transmission Storage DTE Electric 38 32 N/A N/A DTE Gas 55 N/A 67 60
Schedule of Capitalized Software	The following balances for capitalized software relate to DTE Energy: Year Ended December 31, 2024 2023 2022 (In millions) Amortization expense of capitalized software $ 192 $ 189 $ 159 Gross carrying value of capitalized software $ 1,005 $ 940 Accumulated amortization of capitalized software $ 476 $ 427 The following balances for capitalized software relate to DTE Electric: Year Ended December 31, 2024 2023 2022 (In millions) Amortization expense of capitalized software $ 175 $ 172 $ 146 Gross carrying value of capitalized software $ 910 $ 849 Accumulated amortization of capitalized software $ 414 $ 369

Jointly-Owned Utility Plant (Ta

Jointly-Owned Utility Plant (Tables)	12 Months Ended
	Dec. 31, 2024
Jointly Owned Utility Plant, Net Ownership Amount [Abstract]
Schedule of Jointly-Owned Utility Plants	DTE Electric's ownership information of the two utility plants as of December 31, 2024 was as follows: Belle River Ludington In-service date 1984-1985 1973 Total plant capacity 1,270 MW 2,290 MW Ownership interest 81% 49% Investment in Property, plant, and equipment (in millions) $ 2,053 $ 656 Accumulated depreciation (in millions) $ 1,140 $ 160

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	12 Months Ended
	Dec. 31, 2024
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Change in Asset Retirement Obligations	Changes to Asset retirement obligations for 2024, 2023, and 2022 were as follows: 2024 2023 2022 DTE Energy (In millions) Asset retirement obligations at January 1 $ 3,556 $ 3,460 $ 3,162 Accretion 211 198 184 Liabilities incurred (a) 324 7 24 Liabilities settled (14) (96) (7) Revision in estimated cash flows (46) (13) 97 Asset retirement obligations at December 31 $ 4,031 $ 3,556 $ 3,460 _______________________________________ (a) Liabilities incurred was primarily due to the impact of the Coal Combustion Residuals on DTE Electric's coal ash storage facility asset retirement obligations. Refer to Note 17 to the Consolidated Financial Statements, "Commitments and Contingencies." 2024 2023 2022 DTE Electric (In millions) Asset retirement obligations at January 1 $ 3,326 $ 3,221 $ 2,932 Accretion 199 185 172 Liabilities incurred (a) 323 4 22 Liabilities settled (11) (81) (2) Revision in estimated cash flows (46) (3) 97 Asset retirement obligations at December 31 $ 3,791 $ 3,326 $ 3,221 _______________________________________ (a) Liabilities incurred was primarily due to the impact of the Coal Combustion Residuals on DTE Electric's coal ash storage facility asset retirement obligations. Refer to Note 17 to the Consolidated Financial Statements, "Commitments and Contingencies."

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2024
Regulatory Assets and Liabilities Disclosure [Abstract]
Schedule of Regulatory Assets	The following are balances and a brief description of the Registrants' Regulatory assets and liabilities at December 31: DTE Energy DTE Electric 2024 2023 2024 2023 Assets (In millions) Recoverable undepreciated costs on retiring plants $ 2,986 $ 2,736 $ 2,986 $ 2,736 Recoverable pension and other postretirement costs Pension 1,315 1,421 971 1,045 Other postretirement costs 91 163 — 67 Fermi 2 asset retirement obligation 951 952 951 952 Removal costs asset 501 223 501 223 Enhanced tree trimming program deferred costs 211 157 211 157 Recoverable Michigan income taxes 119 133 99 110 Recoverable income taxes related to AFUDC equity 116 89 107 80 Energy Waste Reduction incentive 102 90 82 72 Renewable ITC offset 89 — 89 — Deferred environmental costs 43 46 — — Unamortized loss on reacquired debt 38 41 29 31 Customer360 deferred costs 34 38 34 38 Ludington contract dispute costs 31 10 31 10 Accrued PSCR/GCR revenue — 55 — 55 Other 194 163 135 119 6,821 6,317 6,226 5,695 Less amount included in Current Assets (50) (108) (39) (99) $ 6,771 $ 6,209 $ 6,187 $ 5,596 Securitized regulatory assets $ 690 $ 758 $ 690 $ 758
Schedule of Regulatory Liabilities	DTE Energy DTE Electric 2024 2023 2024 2023 Liabilities (In millions) Refundable federal income taxes $ 1,733 $ 1,823 $ 1,389 $ 1,463 Removal costs liability 506 342 — — Non-service pension and other postretirement costs 255 199 94 84 Negative other postretirement offset 214 210 139 142 Accrued PSCR/GCR refund 136 21 111 — Renewable energy 90 7 90 7 Other 103 72 86 63 3,037 2,674 1,909 1,759 Less amount included in Current Liabilities (181) (71) (156) (49) $ 2,856 $ 2,603 $ 1,753 $ 1,710

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Schedule of Effective Income Tax Rate Reconciliation	The Registrants' total Income Tax Expense varied from the statutory federal income tax rate for the following reasons: 2024 2023 2022 DTE Energy (In millions) Income Before Income Taxes $ 1,370 $ 1,566 $ 1,112 Income tax expense at 21% statutory rate $ 288 $ 329 $ 234 Production tax credits (a)(b) (169) (91) (91) Investment tax credits (a) (128) (44) (1) TCJA regulatory liability amortization (66) (63) (155) AFUDC equity (17) (7) (5) State and local income taxes, net of federal benefit 59 59 42 Other, net (1) (14) 5 Income Tax Expense (Benefit) $ (34) $ 169 $ 29 Effective income tax rate (2.5) % 10.8 % 2.6 % _______________________________________ (a) PTCs and ITCs include $231 million of certain eligible credits generated in 2023 and 2024, net of discount, that were sold in 2024 under the transferability provisions of the Inflation Reduction Act of 2022. Cash received related to the transfer of tax credits is included in Cash paid (received) for: Income taxes within the supplemental disclosures of cash flow information on the DTE Energy Consolidated Statements of Cash Flows. These tax credit sales are subject to standard indemnifications up to the cash received. Payments under these indemnifications are considered remote. (b) Includes nuclear PTCs of $89 million, net of discount, recognized in 2024. The nuclear PTCs continue to be the subject of additional guidance expected to be issued from the U.S. Department of the Treasury and IRS that may materially impact the total amount of the benefits we receive. The benefit of these PTCs is provided to customers through the regulatory construct of the PSCR mechanism. 2024 2023 2022 DTE Electric (In millions) Income Before Income Taxes $ 1,040 $ 850 $ 981 Income tax expense at 21% statutory rate $ 218 $ 179 $ 206 Production tax credits (a)(b) (162) (79) (83) Investment tax credits (a) (70) (1) (1) TCJA regulatory liability amortization (55) (53) (145) AFUDC equity (16) (7) (4) State and local income taxes, net of federal benefit 57 45 56 Other, net (4) (6) (3) Income Tax Expense (Benefit) $ (32) $ 78 $ 26 Effective income tax rate (3.1) % 9.2 % 2.7 % _______________________________________ (a) PTCs and ITCs include $231 million of certain eligible credits generated in 2023 and 2024, net of discount, that were sold in 2024 under the transferability provisions of the Inflation Reduction Act of 2022. Cash received related to the transfer of tax credits is included in Cash paid (received) for: Income taxes within the supplemental disclosures of cash flow information on the DTE Energy Consolidated Statements of Cash Flows. These tax credit sales are subject to standard indemnifications up to the cash received. Payments under these indemnifications are considered remote. (b) Includes nuclear PTCs of $89 million, net of discount, recognized in 2024. The nuclear PTCs continue to be the subject of additional guidance expected to be issued from the U.S. Department of the Treasury and IRS that may materially impact the total amount of the benefits we receive. The benefit of these PTCs is provided to customers through the regulatory construct of the PSCR mechanism.
Schedule of Components of Income Tax Expense (Benefit)	Components of the Registrants' Income Tax Expense were as follows: 2024 2023 2022 DTE Energy (In millions) Current income tax benefit Federal $ (226) $ (10) $ (13) State and other income tax (2) (2) (2) Total current income taxes (228) (12) (15) Deferred income tax expense (benefit) Federal 117 103 (13) State and other income tax 77 78 57 Total deferred income taxes 194 181 44 $ (34) $ 169 $ 29 2024 2023 2022 DTE Electric (In millions) Current income tax expense (benefit) Federal $ (228) $ 1 $ 1 State and other income tax — (5) — Total current income taxes (228) (4) 1 Deferred income tax expense (benefit) Federal 124 19 (46) State and other income tax 72 63 71 Total deferred income taxes 196 82 25 $ (32) $ 78 $ 26
Schedule of Deferred Tax Assets and Liabilities	The Registrants' deferred tax assets (liabilities) were comprised of the following at December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Property, plant, and equipment $ (3,695) $ (3,423) $ (2,788) $ (2,693) Regulatory assets and liabilities (1,272) (1,158) (1,492) (1,314) Tax credit carryforwards 1,604 1,519 583 572 Pension and benefits 55 77 62 69 Federal net operating loss carryforward 190 202 30 71 State and local net operating loss carryforwards 68 76 42 49 Investments in equity method investees (28) (33) (1) — Other 145 130 176 137 (2,933) (2,610) (3,388) (3,109) Less: Valuation allowance (25) (39) (5) — Long-term deferred income tax liabilities $ (2,958) $ (2,649) $ (3,393) $ (3,109) Deferred income tax assets $ 2,508 $ 2,415 $ 1,209 $ 1,202 Deferred income tax liabilities (5,466) (5,064) (4,602) (4,311) $ (2,958) $ (2,649) $ (3,393) $ (3,109)

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2024
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following is a reconciliation of DTE Energy's basic and diluted income per share calculation for the years ended December 31: 2024 2023 2022 (In millions, except per share amounts) Basic Earnings per Share Net Income Attributable to DTE Energy Company $ 1,404 $ 1,397 $ 1,083 Less: Allocation of earnings to net restricted stock awards 3 3 3 Net income available to common shareholders — basic $ 1,401 $ 1,394 $ 1,080 Average number of common shares outstanding — basic 207 206 195 Basic Earnings per Common Share $ 6.78 $ 6.77 $ 5.53 Diluted Earnings per Share Net Income Attributable to DTE Energy Company $ 1,404 $ 1,397 $ 1,083 Less: Allocation of earnings to net restricted stock awards 3 3 3 Net income available to common shareholders — diluted $ 1,401 $ 1,394 $ 1,080 Average number of common shares outstanding — basic 207 206 195 Average performance share awards — — 1 Average number of common shares outstanding — diluted 207 206 196 Diluted Earnings per Common Share $ 6.77 $ 6.76 $ 5.52

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Assets and Liabilities Recorded at Fair Value on a Recurring Basis	The following table presents assets and liabilities for DTE Energy measured and recorded at fair value on a recurring basis: December 31, 2024 December 31, 2023 Level 1 Level Level 3 Other (a) Netting (b) Net Balance Level 1 Level Level 3 Other (a) Netting (b) Net Balance (In millions) Assets Cash equivalents (c) $ 11 $ — $ — $ — $ — $ 11 $ 13 $ — $ — $ — $ — $ 13 Nuclear decommissioning trusts Equity securities 856 — — 147 — 1,003 776 — — 145 — 921 Fixed income securities 124 414 — 112 — 650 127 371 — 92 — 590 Private equity and other 16 — — 333 — 349 — — — 312 — 312 Hedge funds and similar investments 151 16 — 61 — 228 119 65 — — — 184 Cash equivalents 26 — — — — 26 34 — — — — 34 Other investments (d) Equity securities 72 — — — — 72 58 — — — — 58 Fixed income securities 7 — — — — 7 7 — — — — 7 Cash equivalents 29 — — — — 29 37 — — — — 37 Derivative assets Commodity contracts (e) Natural gas 242 81 105 — (285) 143 241 217 179 — (416) 221 Electricity 67 69 51 — (116) 71 — 258 163 — (243) 178 Environmental & Other 1 47 10 — (46) 12 — 131 8 — (132) 7 Other contracts — 21 — — — 21 — — — — — — Total derivative assets 310 218 166 — (447) 247 241 606 350 — (791) 406 Total $ 1,602 $ 648 $ 166 $ 653 $ (447) $ 2,622 $ 1,412 $ 1,042 $ 350 $ 549 $ (791) $ 2,562 Liabilities Derivative liabilities Commodity contracts (e) Natural gas $ (217) $ (70) $ (123) $ — $ 272 $ (138) $ (291) $ (167) $ (157) $ — $ 429 $ (186) Electricity (71) (52) (27) — 114 (36) — (272) (116) — 297 (91) Environmental & Other (2) (39) (3) — 44 — — (148) (2) — 137 (13) Other contracts — (1) — — — (1) — (19) — — — (19) Total $ (290) $ (162) $ (153) $ — $ 430 $ (175) $ (291) $ (606) $ (275) $ — $ 863 $ (309) Net Assets (Liabilities) at end of period $ 1,312 $ 486 $ 13 $ 653 $ (17) $ 2,447 $ 1,121 $ 436 $ 75 $ 549 $ 72 $ 2,253 Assets Current $ 223 $ 170 $ 106 $ — $ (326) $ 173 $ 215 $ 461 $ 247 $ — $ (613) $ 310 Noncurrent 1,379 478 60 653 (121) 2,449 1,197 581 103 549 (178) 2,252 Total Assets $ 1,602 $ 648 $ 166 $ 653 $ (447) $ 2,622 $ 1,412 $ 1,042 $ 350 $ 549 $ (791) $ 2,562 Liabilities Current $ (219) $ (129) $ (93) $ — $ 323 $ (118) $ (240) $ (462) $ (145) $ — $ 670 $ (177) Noncurrent (71) (33) (60) — 107 (57) (51) (144) (130) — 193 (132) Total Liabilities $ (290) $ (162) $ (153) $ — $ 430 $ (175) $ (291) $ (606) $ (275) $ — $ 863 $ (309) Net Assets (Liabilities) at end of period $ 1,312 $ 486 $ 13 $ 653 $ (17) $ 2,447 $ 1,121 $ 436 $ 75 $ 549 $ 72 $ 2,253 _______________________________________ (a) Amounts represent assets valued at NAV as a practical expedient for fair value. (b) Amounts represent the impact of master netting agreements that allow DTE Energy to net gain and loss positions and cash collateral held or placed with the same counterparties. (c) Amounts include $8 million and $11 million recorded in Restricted cash on DTE Energy's Consolidated Statements of Financial Position at December 31, 2024 and December 31, 2023, respectively. All other amounts are included in Cash and cash equivalents on DTE Energy's Consolidated Statements of Financial Position. (d) Excludes cash surrender value of life insurance investments and certain securities classified as held-to-maturity that are recorded at amortized cost and not material to the consolidated financial statements. (e) For contracts with a clearing agent, DTE Energy nets all activity across commodities. This can result in some individual commodities having a contra balance. The following table presents assets for DTE Electric measured and recorded at fair value on a recurring basis as of: December 31, 2024 December 31, 2023 Level 1 Level 2 Level 3 Other (a) Net Balance Level 1 Level 2 Level 3 Other (a) Net Balance (In millions) Assets Cash equivalents (b) $ 8 $ — $ — $ — $ 8 $ 11 $ — $ — $ — $ 11 Nuclear decommissioning trusts Equity securities 856 — — 147 1,003 776 — — 145 921 Fixed income securities 124 414 — 112 650 127 371 — 92 590 Private equity and other 16 — — 333 349 — — — 312 312 Hedge funds and similar investments 151 16 — 61 228 119 65 — — 184 Cash equivalents 26 — — — 26 34 — — — 34 Other investments Equity securities 26 — — — 26 21 — — — 21 Cash equivalents 19 — — — 19 11 — — — 11 Derivative assets — FTRs — — 9 — 9 — — 7 — 7 Total $ 1,226 $ 430 $ 9 $ 653 $ 2,318 $ 1,099 $ 436 $ 7 $ 549 $ 2,091 Assets Current $ 8 $ — $ 9 $ — $ 17 $ 11 $ — $ 7 $ — $ 18 Noncurrent 1,218 430 — 653 2,301 1,088 436 — 549 2,073 Total Assets $ 1,226 $ 430 $ 9 $ 653 $ 2,318 $ 1,099 $ 436 $ 7 $ 549 $ 2,091 _______________________________________ (a) Amounts represent assets valued at NAV as a practical expedient for fair value. (b) Amounts include $8 million and $11 million recorded in Restricted cash on DTE Electric's Consolidated Statements of Financial Position at December 31, 2024 and December 31, 2023, respectively. All other amounts are included in Cash and cash equivalents on DTE Electric's Consolidated Statements of Financial Position.
Reconciliation of Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis for DTE Energy: Year Ended December 31, 2024 Year Ended December 31, 2023 Natural Gas Electricity Other Total Natural Gas Electricity Other Total (In millions) Net Assets (Liabilities) as of January 1 $ 22 $ 47 $ 6 $ 75 $ (255) $ (33) $ 11 $ (277) Transfers into Level 3 from Level 2 1 — — 1 — — — — Transfers from Level 3 into Level 2 — 74 — 74 17 — — 17 Total gains (losses) Included in earnings (a) 16 225 (1) 240 182 198 (1) 379 Recorded in Regulatory liabilities — — 21 21 — — 9 9 Purchases, issuances, and settlements: Settlements (57) (322) (19) (398) 78 (118) (13) (53) Net Assets (Liabilities) as of December 31 $ (18) $ 24 $ 7 $ 13 $ 22 $ 47 $ 6 $ 75 Total gains (losses) included in Net Income attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31 (a) $ (47) $ 118 $ (159) $ (88) $ 85 $ 151 $ (122) $ 114 Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31 $ — $ — $ 9 $ 9 $ — $ — $ 7 $ 7 _______________________________________ (a) Amounts are reflected in Operating Revenues — Non-utility operations and Fuel, purchased power, gas, and other — non-utility in DTE Energy's Consolidated Statements of Operations. The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis for DTE Electric: Year Ended December 31, 2024 2023 (In millions) Net Assets as of January 1 $ 7 $ 11 Total gains recorded in Regulatory liabilities 21 9 Purchases, issuances, and settlements: Settlements (19) (13) Net Assets as of December 31 $ 9 $ 7 Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31 $ 9 $ 7
Unobservable Inputs Related to Level 3 Assets and Liabilities	The following tables present the unobservable inputs related to DTE Energy's Level 3 assets and liabilities: December 31, 2024 Commodity Contracts Derivative Assets Derivative Liabilities Valuation Techniques Unobservable Input Range Weighted Average (In millions) Natural Gas $ 105 $ (123) Discounted Cash Flow Forward basis price (per MMBtu) $ (1.24) — $ 9.96 /MMBtu $ (0.05) /MMBtu Electricity $ 51 $ (27) Discounted Cash Flow Forward basis price (per MWh) $ (16.34) — $ 17.28 /MWh $ (2.74) /MWh December 31, 2023 Commodity Contracts Derivative Assets Derivative Liabilities Valuation Techniques Unobservable Input Range Weighted Average (In millions) Natural Gas $ 179 $ (157) Discounted Cash Flow Forward basis price (per MMBtu) $ (1.57) — $ 6.27 /MMBtu $ (0.08) /MMBtu Electricity $ 163 $ (116) Discounted Cash Flow Forward basis price (per MWh) $ (18.49) — $ 15.47 /MWh $ (3.99) /MWh
Carrying Amount of Fair Value of Financial Instruments	The following table presents the carrying amount and fair value of financial instruments for DTE Energy: December 31, 2024 December 31, 2023 Carrying Fair Value Carrying Fair Value Amount Level 1 Level 2 Level 3 Amount Level 1 Level 2 Level 3 (In millions) Notes receivable (a) , excluding lessor finance leases $ 884 $ — $ — $ 904 $ 175 $ — $ — $ 181 Short-term borrowings $ 1,067 $ — $ 1,067 $ — $ 1,283 $ — $ 1,283 $ — Notes payable (b) $ 37 $ — $ — $ 37 $ 34 $ — $ — $ 34 Long-term debt (c) $ 21,963 $ 725 $ 18,283 $ 1,128 $ 19,546 $ 807 $ 16,178 $ 1,202 _______________________________________ (a) Current portion included in Current Assets — Other on DTE Energy's Consolidated Statements of Financial Position. Carrying value includes credit loss reserves on Notes receivable. (b) Included in Current Liabilities — Other and Other Liabilities — Other on DTE Energy's Consolidated Statements of Financial Position. (c) Includes debt due within one year and excludes finance lease obligations. Carrying value also includes unamortized debt discounts and issuance costs. The following table presents the carrying amount and fair value of financial instruments for DTE Electric: December 31, 2024 December 31, 2023 Carrying Fair Value Carrying Fair Value Amount Level 1 Level 2 Level 3 Amount Level 1 Level 2 Level 3 (In millions) Notes receivable — Other (a) $ 2 $ — $ — $ 2 $ 19 $ — $ — $ 19 Notes receivable — Affiliates 42 — — 42 — — — — Short-term borrowings — Other $ 666 $ — $ 666 $ — $ 385 $ — $ 385 $ — Notes payable (b) $ 35 $ — $ — $ 35 $ 33 $ — $ — $ 33 Long-term debt (c) $ 11,881 $ — $ 10,449 $ 127 $ 11,043 $ — $ 9,999 $ 126 _______________________________________ (a) Included in Current Assets — Other and Other Assets — Other on DTE Electric's Consolidated Statements of Financial Position. (b) Included in Current Liabilities — Other and Other Liabilities — Other on DTE Electric's Consolidated Statements of Financial Position. (c) Includes debt due within one year and excludes finance lease obligations. Carrying value also includes unamortized debt discounts and issuance costs.
Fair Value of Nuclear Decommissioning Trust Fund Assets	The following table summarizes DTE Electric's fair value of the nuclear decommissioning trust fund assets: December 31, 2024 2023 (In millions) Fermi 2 $ 2,234 $ 2,026 Fermi 1 3 3 Low-level radioactive waste 19 12 $ 2,256 $ 2,041
Schedule of Realized Gains and Losses and Proceeds from Sale of Securities by Nuclear Decommissioning Trust Funds	The following table sets forth DTE Electric's gains and losses and proceeds from the sale of securities by the nuclear decommissioning trust funds: Year Ended December 31, 2024 2023 2022 (In millions) Realized gains $ 47 $ 36 $ 71 Realized losses $ (27) $ (42) $ (53) Proceeds from sale of securities $ 555 $ 681 $ 879
Fair Value and Unrealized Gains and Losses for Nuclear Decommissioning Trust Funds	The following table sets forth DTE Electric's fair value and unrealized gains and losses for the nuclear decommissioning trust funds: December 31, 2024 December 31, 2023 Fair Unrealized Unrealized Losses Fair Unrealized Unrealized Losses (In millions) Equity securities $ 1,003 $ 558 $ (16) $ 921 $ 459 $ (11) Fixed income securities 650 16 (29) 590 8 (30) Private equity and other 349 106 (8) 312 74 (8) Hedge funds and similar investments 228 7 (5) 184 4 (9) Cash equivalents 26 — — 34 — — $ 2,256 $ 687 $ (58) $ 2,041 $ 545 $ (58)
Fair Value of the Fixed Income Securities Held in Nuclear Decommissioning Trust Funds	The following table summarizes the fair value of the fixed income securities held in nuclear decommissioning trust funds by contractual maturity: December 31, 2024 (In millions) Due within one year $ 18 Due after one through five years 105 Due after five through ten years 107 Due after ten years 308 $ 538

Financial and Other Derivativ_2

Financial and Other Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value of Derivative Instruments	The following table presents the fair value of derivative instruments for DTE Energy: December 31, 2024 December 31, 2023 Derivative Derivative Derivative Derivative (In millions) Derivatives designated as hedging instruments Interest rate contracts $ 20 $ — $ — $ (16) Foreign currency exchange contracts — (1) — (2) Total derivatives designated as hedging instruments $ 20 $ (1) $ — $ (18) Derivatives not designated as hedging instruments Commodity contracts Natural gas $ 428 $ (410) $ 637 $ (615) Electricity 187 (150) 421 (388) Environmental & Other 58 (44) 139 (150) Foreign currency exchange contracts 1 — — (1) Total derivatives not designated as hedging instruments $ 674 $ (604) $ 1,197 $ (1,154) Current $ 488 $ (441) $ 910 $ (847) Noncurrent 206 (164) 287 (325) Total derivatives $ 694 $ (605) $ 1,197 $ (1,172)
Offsetting Assets	The following table presents net cash collateral offsetting arrangements for DTE Energy: December 31, 2024 2023 (In millions) Cash collateral netted against Derivative assets $ (17) $ — Cash collateral netted against Derivative liabilities — 72 Cash collateral recorded in Accounts receivable (a) 29 57 Cash collateral recorded in Accounts payable (a) (5) (3) Total net cash collateral posted (received) $ 7 $ 126 _______________________________________ (a) Amounts are recorded net by counterparty. The following table presents the netting offsets of Derivative assets and liabilities for DTE Energy: December 31, 2024 December 31, 2023 Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position (In millions) Derivative assets Commodity contracts (a) Natural gas $ 428 $ (285) $ 143 $ 637 $ (416) $ 221 Electricity 187 (116) 71 421 (243) 178 Environmental & Other 58 (46) 12 139 (132) 7 Interest rate contracts 20 — 20 — — — Foreign currency exchange contracts 1 — 1 — — — Total derivative assets $ 694 $ (447) $ 247 $ 1,197 $ (791) $ 406 Derivative liabilities Commodity contracts (a) Natural gas $ (410) $ 272 $ (138) $ (615) $ 429 $ (186) Electricity (150) 114 (36) (388) 297 (91) Environmental & Other (44) 44 — (150) 137 (13) Interest rate contracts — — — (16) — (16) Foreign currency exchange contracts (1) — (1) (3) — (3) Total derivative liabilities $ (605) $ 430 $ (175) $ (1,172) $ 863 $ (309) _______________________________________ (a) For contracts with a clearing agent, DTE Energy nets all activity across commodities. This can result in some individual commodities having a contra balance.
Offsetting Liabilities	The following table presents net cash collateral offsetting arrangements for DTE Energy: December 31, 2024 2023 (In millions) Cash collateral netted against Derivative assets $ (17) $ — Cash collateral netted against Derivative liabilities — 72 Cash collateral recorded in Accounts receivable (a) 29 57 Cash collateral recorded in Accounts payable (a) (5) (3) Total net cash collateral posted (received) $ 7 $ 126 _______________________________________ (a) Amounts are recorded net by counterparty. The following table presents the netting offsets of Derivative assets and liabilities for DTE Energy: December 31, 2024 December 31, 2023 Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position (In millions) Derivative assets Commodity contracts (a) Natural gas $ 428 $ (285) $ 143 $ 637 $ (416) $ 221 Electricity 187 (116) 71 421 (243) 178 Environmental & Other 58 (46) 12 139 (132) 7 Interest rate contracts 20 — 20 — — — Foreign currency exchange contracts 1 — 1 — — — Total derivative assets $ 694 $ (447) $ 247 $ 1,197 $ (791) $ 406 Derivative liabilities Commodity contracts (a) Natural gas $ (410) $ 272 $ (138) $ (615) $ 429 $ (186) Electricity (150) 114 (36) (388) 297 (91) Environmental & Other (44) 44 — (150) 137 (13) Interest rate contracts — — — (16) — (16) Foreign currency exchange contracts (1) — (1) (3) — (3) Total derivative liabilities $ (605) $ 430 $ (175) $ (1,172) $ 863 $ (309) _______________________________________ (a) For contracts with a clearing agent, DTE Energy nets all activity across commodities. This can result in some individual commodities having a contra balance.
Netting Offsets of Derivative Assets and Liabilities Reconciliation to the Statements of Financial Position	The following table presents the netting offsets of Derivative assets and liabilities showing the reconciliation of derivative instruments to DTE Energy's Consolidated Statements of Financial Position: December 31, 2024 December 31, 2023 Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities Current Noncurrent Current Noncurrent Current Noncurrent Current Noncurrent (In millions) Total fair value of derivatives $ 488 $ 206 $ (441) $ (164) $ 910 $ 287 $ (847) $ (325) Counterparty netting (323) (107) 323 107 (613) (178) 613 178 Collateral adjustment (3) (14) — — — — 57 15 Total derivatives as reported $ 162 $ 85 $ (118) $ (57) $ 297 $ 109 $ (177) $ (132)
Gain (Loss) Recognized in Income on Derivatives	The effect of derivatives not designated as hedging instruments on DTE Energy's Consolidated Statements of Operations is as follows: Location of Gain (Loss) Recognized in Income on Derivatives Gain (Loss) Recognized in Income on Derivatives for Years Ended December 31, 2024 2023 2022 (In millions) Commodity contracts Natural gas Operating Revenues — Non-utility operations $ (169) $ 153 $ (235) Natural gas Fuel, purchased power, gas, and other — non-utility 233 122 (108) Electricity Operating Revenues — Non-utility operations 266 105 221 Environmental & Other Operating Revenues — Non-utility operations 14 5 13 Foreign currency exchange contracts Operating Revenues — Non-utility operations 3 (2) 3 Total $ 347 $ 383 $ (106)
Volume of Commodity Contracts	The following represents the cumulative gross volume of DTE Energy's derivative contracts outstanding as of December 31, 2024: Commodity Number of Units Natural gas (MMBtu) 2,061,711,943 Electricity (MWh) 39,109,082 Foreign currency exchange ($ CAD) 74,608,748 FTR (MWh) 65,874 Renewable Energy Certificates (MWh) 10,569,260 Carbon emissions (Metric Ton) 210,079 Interest rate contracts ($ USD) 700,000,000

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	DTE Energy's long-term debt outstanding and interest rates of debt outstanding at December 31 were: Interest Rate (a) Maturity Date 2024 2023 (In millions) Mortgage bonds, notes, and other DTE Energy debt, unsecured 4.2% 2025 — 2034 $ 6,380 $ 5,105 DTE Electric debt, principally secured 3.9% 2025 — 2053 11,270 10,370 DTE Gas debt, principally secured 4.3% 2025 — 2054 2,865 2,545 20,515 18,020 Unamortized debt discount (28) (26) Unamortized debt issuance costs (114) (100) Long-term debt due within one year (1,220) (2,075) $ 19,153 $ 15,819 Securitization bonds (b) DTE Electric securitization bonds 5.4% 2027 — 2038 $ 713 $ 777 Unamortized debt issuance costs (7) (8) Long-term debt due within one year (71) (64) $ 635 $ 705 Junior Subordinated Debentures Subordinated debentures 4.8% 2077 — 2081 $ 910 $ 910 Unamortized debt issuance costs (26) (27) $ 884 $ 883 _______________________________________ (a) Weighted average interest rate as of December 31, 2024. (b) Bonds are held by DTE Securitization I and DTE Securitization II, special purpose entities consolidated by DTE Electric. Refer to Note 1 to the Consolidated Financial Statements, “Organization and Basis of Presentation,” for additional information regarding these entities and restrictions related to the bonds. DTE Electric's long-term debt outstanding and interest rates of debt outstanding at December 31 were: Interest Rate (a) Maturity Date 2024 2023 (In millions) Mortgage bonds, notes, and other Long-term debt, principally secured 3.9% 2025 — 2053 $ 11,270 $ 10,370 Unamortized debt discount (22) (23) Unamortized debt issuance costs (73) (73) Long-term debt due within one year (350) (100) $ 10,825 $ 10,174 Securitization bonds (b) DTE Electric securitization bonds 5.4% 2027 — 2038 $ 713 $ 777 Unamortized debt issuance costs (7) (8) Long-term debt due within one year (71) (64) $ 635 $ 705 _______________________________________ (a) Weighted average interest rate as of December 31, 2024. (b) Bonds are held by DTE Securitization I and DTE Securitization II, special purpose entities consolidated by DTE Electric. Refer to Note 1 to the Consolidated Financial Statements, “Organization and Basis of Presentation,” for additional information regarding these entities and restrictions related to the bonds.
Schedule of Debt Issued	Refer to the table below for debt issued in 2024: Company Month Type Interest Rate Maturity Date Amount (In millions) DTE Energy February Senior notes (a) 5.10% 2029 $ 1,200 DTE Electric February Mortgage bonds (b) 4.85% 2026 500 DTE Electric February Mortgage bonds (b) 5.20% 2034 500 DTE Energy May Senior notes (c) 5.85% 2034 850 DTE Energy August Senior notes (d) 4.95% 2027 1,200 DTE Gas October Mortgage bonds (b) 4.87% 2034 160 DTE Gas October Mortgage bonds (b) 5.43% 2054 160 $ 4,570 _______________________________ (a) Proceeds used for the repayment of short-term borrowings and for general corporate purposes. (b) Proceeds used for the repayment of short-term borrowings, for capital expenditures, and for other general corporate purposes. (c) Proceeds used for the repayment of a portion of the $675 million 2016 Series C 2.53% Senior Notes due October 1, 2024, for repayment of a portion of the $1.3 billion 2019 Series F 4.22% Senior Notes due November 1, 2024, and for general corporate purposes. (d) Proceeds used for the repayment of a portion of the $1.3 billion 2019 Series F 4.22% Senior Notes due November 1, 2024 and for general corporate purposes.
Schedule of Debt Redeemed	Refer to the table below for debt redeemed in 2024: Company Month Type Interest Rate Maturity Date Amount (In millions) DTE Electric March Mortgage Bonds 3.65% 2024 $ 100 DTE Electric June Securitization bonds 2.64% 2024 19 DTE Electric September Securitization bonds 5.97% 2024 24 DTE Energy October Senior notes 2.53% 2024 675 DTE Energy November Senior notes 4.22% 2024 1,300 DTE Electric December Securitization bonds 2.64% 2024 21 $ 2,139
Schedule of Maturities of Long-term Debt	The following table shows the Registrants' scheduled debt maturities, excluding any unamortized discount on debt: 2025 2026 2027 2028 2029 2030 and Thereafter Total (In millions) DTE Energy (a)(b) $ 1,291 $ 1,351 $ 1,430 $ 1,737 $ 1,962 $ 14,367 $ 22,138 DTE Electric (b) $ 421 $ 751 $ 39 $ 617 $ 103 $ 10,052 $ 11,983 _______________________________________ (a) Amounts include DTE Electric's scheduled debt maturities. (b) Amounts include DTE Securitization I and DTE Securitization II scheduled debt maturities.
Scheduled Interest Payments Related to Long-term Debt	The following table shows scheduled interest payments related to the Registrants' long-term debt: 2025 2026 2027 2028 2029 2030 and Thereafter Total (In millions) DTE Energy (a)(b) $ 905 $ 888 $ 806 $ 742 $ 664 $ 8,467 $ 12,472 DTE Electric (b) $ 477 $ 466 $ 434 $ 426 $ 418 $ 4,874 $ 7,095 _______________________________________ (a) Amounts include DTE Electric's scheduled interest payments. (b) Amounts include DTE Securitization I and DTE Securitization II scheduled interest payments.

Preferred and Preference Secu_2

Preferred and Preference Securities (Tables)	12 Months Ended
	Dec. 31, 2024
Preferred Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Schedule of Preferred and Preference Securities	As of December 31, 2024, the amount of authorized and unissued stock is as follows: Company Type of Stock Par Value Shares Authorized DTE Energy Preferred $ — 5,000,000 DTE Electric Preferred $ 100 6,747,484 DTE Electric Preference $ 1 30,000,000 DTE Gas Preferred $ 1 7,000,000 DTE Gas Preference $ 1 4,000,000

Short-Term Credit Arrangement_2

Short-Term Credit Arrangements and Borrowings (Tables)	12 Months Ended
	Dec. 31, 2024
Short-Term Debt [Abstract]
Schedule of Line of Credit Facilities	The availability under the facilities in place at December 31, 2024 is shown in the following table: DTE Energy DTE Electric DTE Gas Total (In millions) Unsecured revolving credit facility, expiring October 2029 $ 1,500 $ 800 $ 300 $ 2,600 Unsecured letter of credit facility, expiring June 2025 (a) 175 — — 175 Unsecured letter of credit facility, expiring February 2025 150 — — 150 Unsecured letter of credit facilities, expiring June 2026 100 — — 100 Unsecured letter of credit facility (b) 50 — — 50 Unsecured letter of credit facility (c) — 125 — 125 1,975 925 300 3,200 Amounts outstanding at December 31, 2024 Commercial paper issuances 392 666 9 1,067 Letters of credit 117 124 — 241 509 790 9 1,308 Net availability at December 31, 2024 $ 1,466 $ 135 $ 291 $ 1,892 _______________________________________ (a) Uncommitted letter of credit facility. (b) Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. (c) Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. DTE Energy may also utilize availability under this facility.

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Components of Lease Cost and Other Information Related to Leases	The following is a summary of the components of lease cost for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Operating lease cost $ 26 $ 22 $ 18 $ 22 $ 17 $ 12 Finance lease cost: Amortization of right-of-use assets 4 7 7 3 6 6 Interest of lease liabilities 1 — 1 1 — — Total finance lease cost 5 7 8 4 6 6 Variable lease cost 17 13 9 — — — Short-term lease cost 18 12 19 10 4 10 $ 66 $ 54 $ 54 $ 36 $ 27 $ 28 The following is a summary of other information related to leases for the years ended December 31: DTE Energy DTE Electric 2024 2023 2022 2024 2023 2022 (In millions) Supplemental Cash Flows Information Cash paid for amounts included in the measurement of these liabilities: Operating cash flows for finance leases $ 9 $ 9 $ 8 $ 7 $ 7 $ 7 Operating cash flows for operating leases $ 19 $ 19 $ 17 $ 15 $ 15 $ 12 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 75 $ 61 $ 5 $ 74 $ 61 $ 2 Finance leases $ 16 $ 5 $ 3 $ 14 $ 5 $ 1 Weighted Average Remaining Lease Term (Years) Operating leases 23.3 18.7 12.8 24.8 19.8 11.1 Finance leases 7.4 8.9 8.2 4.0 4.5 1.1 Weighted Average Discount Rate Operating leases 4.8 % 4.4 % 3.7 % 4.9 % 4.5 % 3.4 % Finance leases 4.6 % 4.0 % 2.4 % 5.8 % 5.4 % 1.0 %
Schedule of Maturities of Operating Leases	The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2024 are as follows: DTE Energy DTE Electric Operating Leases Finance Leases Operating Leases Finance Leases (In millions) 2025 $ 22 $ 5 $ 18 $ 4 2026 22 4 19 3 2027 22 4 19 3 2028 20 4 18 3 2029 16 1 13 — 2030 and thereafter 264 7 241 — Total future minimum lease payments 366 25 328 13 Imputed interest (178) (2) (168) (1) Lease liabilities $ 188 $ 23 $ 160 $ 12
Schedule of Maturities of Finance Leases	The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2024 are as follows: DTE Energy DTE Electric Operating Leases Finance Leases Operating Leases Finance Leases (In millions) 2025 $ 22 $ 5 $ 18 $ 4 2026 22 4 19 3 2027 22 4 19 3 2028 20 4 18 3 2029 16 1 13 — 2030 and thereafter 264 7 241 — Total future minimum lease payments 366 25 328 13 Imputed interest (178) (2) (168) (1) Lease liabilities $ 188 $ 23 $ 160 $ 12
Schedule of Finance Leases Reported on Consolidated Statement of Financial Position	Finance leases reported on the Consolidated Statements of Financial Position of the Registrants are as follows for the years ended December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Right-of-use assets, within Property, plant, and equipment, net $ 23 $ 18 $ 12 $ 6 Current lease liabilities, within Current portion of long-term debt $ 5 $ 3 $ 4 $ 2 Long-term lease liabilities $ 18 $ 13 $ 8 $ 4
Schedule of Lease Income Associated with Operating Leases	DTE Energy’s lease income associated with operating leases was included on the Consolidated Statements of Operations for the years ended December 31: 2024 2023 2022 (In millions) Fixed payments $ 15 $ 15 $ 15 Variable payments 45 44 67 $ 60 $ 59 $ 82
Schedule of Minimum Future Rental Revenues under Operating Leases	DTE Energy’s minimum future rental revenues under operating leases for remaining periods as of December 31, 2024 are as follows: DTE Energy (In millions) 2025 $ 14 2026 11 2027 10 2028 6 2029 6 2030 and thereafter 29 $ 76
Schedule of Property under Operating Leases	The following is a summary of property under operating leases for DTE Energy as of December 31: 2024 2023 (In millions) Gross property under operating leases $ 227 $ 228 Accumulated amortization of property under operating leases $ 118 $ 118

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Schedule of Long-term Purchase Commitments	The Registrants estimate the following commitments from 2025 through 2051, as detailed in the following tables: 2025 2026 2027 2028 2029 2030 and Thereafter Total DTE Energy (In millions) Long-term power purchase agreements (a) $ 94 $ 94 $ 95 $ 94 $ 94 $ 481 $ 952 Other purchase commitments (b) 3,198 1,579 913 354 241 662 6,947 Total commitments $ 3,292 $ 1,673 $ 1,008 $ 448 $ 335 $ 1,143 $ 7,899 2025 2026 2027 2028 2029 2030 and Thereafter Total DTE Electric (In millions) Long-term power purchase agreements (a) $ 99 $ 100 $ 99 $ 99 $ 97 $ 488 $ 982 Other purchase commitments (b) 607 297 302 78 36 173 1,493 Total commitments $ 706 $ 397 $ 401 $ 177 $ 133 $ 661 $ 2,475 _______________________________________ (a) The agreements represent the minimum obligations with suppliers for renewable energy and renewable energy credits under existing contract terms which expire from 2030 through 2049. DTE Electric's share of plant output ranges from 28% to 100%. Purchase commitments for DTE Electric include affiliate agreements with DTE Sustainable Generation that are eliminated in consolidation for DTE Energy. (b) Excludes amounts associated with full requirements contracts where no stated minimum purchase volume is required.

Retirement Benefits and Trust_2

Retirement Benefits and Trusteed Assets (Tables)	12 Months Ended
	Dec. 31, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Defined Benefit Plans Disclosures	The table below represents the pension and other postretirement benefit plans of each Registrant at December 31, 2024: Registrants DTE Energy DTE Electric Qualified Pension Plans DTE Energy Company Retirement Plan X X DTE Gas Company Retirement Plan for Employees Covered by Collective Bargaining Agreements X Shenango Inc. Pension Plan (a) X Non-qualified Pension Plans DTE Energy Company Supplemental Retirement Plan (b) X X DTE Energy Company Executive Supplemental Retirement Plan (b) X X DTE Energy Company Supplemental Severance Benefit Plan X Other Postretirement Benefit Plans The DTE Energy Company Comprehensive Non-Health Welfare Plan X X The DTE Energy Company Comprehensive Retiree Group Health Care Plan X X DTE Supplemental Retiree Benefit Plan X X DTE Energy Company Retiree Reimbursement Arrangement Plan X X _____________________________________ (a) Sponsored by Shenango, LLC (b) Sponsored by DTE Energy Company
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Defined Benefit Plans Disclosures	The following table reconciles the obligations, assets, and funded status of the plans as well as the amounts recognized as a pension liability in DTE Energy's Consolidated Statements of Financial Position at December 31: DTE Energy 2024 2023 (In millions) Accumulated benefit obligation, end of year $ 3,803 $ 4,089 Change in projected benefit obligation Projected benefit obligation, beginning of year $ 4,318 $ 4,309 Service cost 58 57 Interest cost 208 214 Actuarial (gain) loss (254) 74 Benefits paid (348) (329) Settlements — (7) Projected benefit obligation, end of year $ 3,982 $ 4,318 Change in plan assets Plan assets at fair value, beginning of year $ 3,960 $ 3,897 Actual return on plan assets 137 363 Company contributions 9 36 Benefits paid (348) (329) Settlements — (7) Plan assets at fair value, end of year $ 3,758 $ 3,960 Funded status $ (224) $ (358) Amount recorded as: Current liabilities $ (10) $ (8) Noncurrent liabilities (214) (350) $ (224) $ (358) Amounts recognized in Accumulated other comprehensive income, pre-tax Net actuarial loss $ 76 $ 76 $ 76 $ 76 Amounts recognized in Regulatory assets (a) Net actuarial loss $ 1,318 $ 1,426 Prior service credit (3) (5) $ 1,315 $ 1,421 ______________________________________ (a) See Note 8 to the Consolidated Financial Statements, "Regulatory Matters."
Schedule of Net Benefit Costs	Net pension cost (credit) for DTE Energy includes the following components: 2024 2023 2022 (In millions) Service cost $ 58 $ 57 $ 95 Interest cost 208 214 166 Expected return on plan assets (341) (352) (346) Amortization of: Net actuarial loss 59 7 115 Prior service credit (2) (2) (1) Settlements — 7 94 Net pension cost (credit) $ (18) $ (69) $ 123
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	2024 2023 (In millions) Other changes in plan assets and benefit obligations recognized in Regulatory assets and Other comprehensive income (loss) Net actuarial (gain) loss $ (49) $ 62 Amortization of net actuarial loss and settlements (59) (14) Amortization of prior service credit 2 2 Total recognized in Regulatory assets and Other comprehensive income (loss) $ (106) $ 50 Total recognized in net periodic pension credit, Regulatory assets, and Other comprehensive income (loss) $ (124) $ (19)
Schedule of Expected Benefit Payments	At December 31, 2024, the benefits related to DTE Energy's qualified and non-qualified pension plans expected to be paid in each of the next five years and in the aggregate for the five fiscal years thereafter are as follows: (In millions) 2025 $ 321 2026 321 2027 323 2028 325 2029 321 2030-2034 1,585 Total $ 3,196
Schedule of Assumptions Used	Assumptions used in determining the projected benefit obligation and net pension costs of DTE Energy are: 2024 2023 2022 Projected benefit obligation Discount rate 5.65% 5.00% 5.19% Rate of compensation increase 3.55% 3.80% 3.80% Cash balance interest crediting rate 4.50% 3.60% 3.40% Net pension costs Discount rate 5.00% 5.19% 2.91% Rate of compensation increase 3.80% 3.80% 3.80% Expected long-term rate of return on plan assets 8.00% 7.60% 6.80% Cash balance interest crediting rate 3.60% 3.40% 2.40%
Schedule of Allocation of Plan Assets	Target allocations for DTE Energy's pension plan assets as of December 31, 2024 are listed below: U.S. Large Capitalization (Cap) Equity Securities 8 % U.S. Small Cap and Mid Cap Equity Securities 1 Non-U.S. Equity Securities 6 Fixed Income Securities 58 Hedge Funds and Similar Investments 8 Private Equity and Other 19 100 % The following table provides the fair value measurement amounts for DTE Energy's pension plan assets at December 31, 2024 and 2023 (a) : December 31, 2024 December 31, 2023 Level 1 Level 2 Other (b) Total Level 1 Level 2 Other (b) Total DTE Energy asset category: (In millions) Short-term Investments (c) $ 97 $ — $ — $ 97 $ 100 $ — $ — $ 100 Equity Securities Domestic (d) — — 349 349 — — 550 550 International (e) 35 — 188 223 55 — 309 364 Fixed Income Securities Governmental (f) 627 76 — 703 531 78 — 609 Corporate (g) — 1,350 — 1,350 — 1,323 — 1,323 Hedge Funds and Similar Investments (h) 137 14 167 318 104 68 110 282 Private Equity and Other (i) — — 718 718 — — 732 732 DTE Energy Total $ 896 $ 1,440 $ 1,422 $ 3,758 $ 790 $ 1,469 $ 1,701 $ 3,960 _______________________________________ (a) For a description of levels within the fair value hierarchy, see Note 11 to the Consolidated Financial Statements, "Fair Value." (b) Amounts represent assets valued at NAV as a practical expedient for fair value. (c) This category predominantly represents certain short-term fixed income securities and money market investments that are managed in separate accounts or commingled funds. Pricing for investments in this category is obtained from quoted prices in actively traded markets. (d) This category represents portfolios of large, medium and small capitalization domestic equities. Investments in this category include exchange-traded securities held in a commingled fund classified as NAV assets. (e) This category primarily consists of portfolios of non-U.S. developed and emerging market equities. Investments in this category include exchange-traded securities for which unadjusted quoted prices can be obtained and exchange-traded securities held in a commingled fund classified as NAV assets. (f) This category includes U.S. Treasuries, bonds, and other governmental debt. Pricing for investments in this category is obtained from quoted prices in actively traded markets and quotations from broker or pricing services. (g) This category primarily consists of corporate bonds from diversified industries, bank loans, and mortgage-backed securities. Pricing for investments in this category is obtained from quotations from broker or pricing services. (h) This category utilizes a diversified group of strategies that attempt to capture uncorrelated sources of return and includes publicly traded mutual funds, insurance-linked and asset-backed securities, commingled funds and limited partnership funds. Pricing for mutual funds in this category is obtained from quoted prices in actively traded markets. Pricing for insurance-linked and asset-backed securities is obtained from quotations from broker or pricing services. Commingled funds and limited partnership funds are classified as NAV assets. (i) This category includes a diversified group of funds and strategies that primarily invests in private equity partnerships. This category also includes investments in private real estate and private debt. All investments in this category are classified as NAV assets.
Other postretirement benefit plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Defined Benefit Plans Disclosures	The following table reconciles the obligations, assets, and funded status of the plans including amounts recorded as Prepaid postretirement costs or Accrued postretirement liability in the Registrants' Consolidated Statements of Financial Position at December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Change in accumulated postretirement benefit obligation Accumulated postretirement benefit obligation, beginning of year $ 1,283 $ 1,293 $ 982 $ 982 Service cost 18 17 14 13 Interest cost 62 65 47 49 Actuarial (gain) loss (165) (5) (139) 2 Benefits paid (75) (87) (55) (64) Accumulated postretirement benefit obligation, end of year $ 1,123 $ 1,283 $ 849 $ 982 Change in plan assets Plan assets at fair value, beginning of year $ 1,614 $ 1,577 $ 1,070 $ 1,052 Actual return on plan assets 58 124 40 81 Benefits paid (78) (87) (58) (63) Plan assets at fair value, end of year $ 1,594 $ 1,614 $ 1,052 $ 1,070 Funded status $ 471 $ 331 $ 203 $ 88 Amount recorded as: Noncurrent assets $ 705 $ 633 $ 428 $ 378 Current liabilities (1) (1) — — Noncurrent liabilities (233) (301) (225) (290) $ 471 $ 331 $ 203 $ 88 Amounts recognized in Accumulated other comprehensive income (loss), pre-tax Net actuarial gain $ (14) $ (13) $ — $ — Amounts recognized in Regulatory assets and liabilities (a) Net actuarial (gain) loss $ 65 $ 173 $ (26) $ 73 Prior service credit — (10) — (6) $ 65 $ 163 $ (26) $ 67 ______________________________________ (a) See Note 8 to the Consolidated Financial Statements, "Regulatory Matters."
Schedule of Net Benefit Costs	Net other postretirement credit for DTE Energy includes the following components: 2024 2023 2022 (In millions) Service cost $ 18 $ 17 $ 27 Interest cost 62 65 48 Expected return on plan assets (120) (111) (126) Amortization of: Net actuarial loss 6 10 4 Prior service credit (10) (19) (19) Net other postretirement credit $ (44) $ (38) $ (66) Net other postretirement credit for DTE Electric includes the following components: 2024 2023 2022 (In millions) Service cost $ 14 $ 13 $ 20 Interest cost 47 49 37 Expected return on plan assets (79) (73) (85) Amortization of: Net actuarial loss 1 1 5 Prior service credit (6) (14) (14) Net other postretirement credit $ (23) $ (24) $ (37)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	2024 2023 (In millions) Other changes in plan assets and accumulated postretirement benefit obligation recognized in Regulatory assets and liabilities and Other comprehensive income (loss) Net actuarial gain $ (103) $ (17) Amortization of net actuarial loss (6) (10) Amortization of prior service credit 10 19 Total recognized in Regulatory assets and liabilities and Other comprehensive income (loss) $ (99) $ (8) Total recognized in net periodic benefit cost, Regulatory assets and liabilities, and Other comprehensive income (loss) $ (143) $ (46) 2024 2023 (In millions) Other changes in plan assets and accumulated postretirement benefit obligation recognized in Regulatory assets and liabilities Net actuarial gain $ (98) $ (6) Amortization of net actuarial loss (1) (1) Amortization of prior service credit 6 14 Total recognized in Regulatory assets and liabilities $ (93) $ 7 Total recognized in net periodic benefit cost and Regulatory assets and liabilities $ (116) $ (17)
Schedule of Expected Benefit Payments	At December 31, 2024, the benefits expected to be paid, including prescription drug benefits, in each of the next five years and in the aggregate for the five fiscal years thereafter for the Registrants are as follows: DTE Energy DTE Electric (In millions) 2025 $ 78 $ 59 2026 82 62 2027 83 63 2028 85 64 2029 87 66 2030-2034 456 347 Total $ 871 $ 661
Schedule of Assumptions Used	Assumptions used in determining the accumulated postretirement benefit obligation and net other postretirement benefit costs of the Registrants are: 2024 2023 2022 Accumulated postretirement benefit obligation Discount rate 5.66% 5.00% 5.19% Health care trend rate pre- and post- 65 8.50 / 9.00% 7.75 / 8.25% 6.75 / 7.25% Ultimate health care trend rate 4.50% 4.50% 4.50% Year in which ultimate reached pre- and post- 65 2035 2035 2035 Other postretirement benefit costs Discount rate 5.00% 5.19% 2.91% Expected long-term rate of return on plan assets 7.60% 7.20% 6.40% Health care trend rate pre- and post- 65 7.75 / 8.25% 6.75 / 7.25% 6.75 / 7.25% Ultimate health care trend rate 4.50% 4.50% 4.50% Year in which ultimate reached pre- and post- 65 2035 2035 2034
Schedule of Allocation of Plan Assets	Target allocations for the Registrants' other postretirement benefit plan assets as of December 31, 2024 are listed below: U.S. Large Cap Equity Securities 4 % Non-U.S. Equity Securities 3 Fixed Income Securities 63 Hedge Funds and Similar Investments 9 Private Equity and Other 21 100 % The following tables provide the fair value measurement amounts for the Registrants' other postretirement benefit plan assets at December 31, 2024 and 2023 (a) : December 31, 2024 December 31, 2023 Level 1 Level 2 Other (b) Total Level 1 Level 2 Other (b) Total (In millions) DTE Energy asset category: Short-term Investments (c) $ 33 $ — $ — $ 33 $ 41 $ — $ — $ 41 Equity Securities Domestic (d) — — 67 67 — — 76 76 International (e) 6 — 34 40 7 — 43 50 Fixed Income Securities Governmental (f) 210 34 — 244 242 31 — 273 Corporate (g) — 492 208 700 — 459 212 671 Hedge Funds and Similar Investments (h) 27 3 103 133 18 21 86 125 Private Equity and Other (i) — — 377 377 — — 378 378 DTE Energy Total $ 276 $ 529 $ 789 $ 1,594 $ 308 $ 511 $ 795 $ 1,614 DTE Electric asset category: Short-term Investments (c) $ 21 $ — $ — $ 21 $ 27 $ — $ — $ 27 Equity Securities Domestic (d) — — 42 42 — — 48 48 International (e) 4 — 22 26 4 — 27 31 Fixed Income Securities Governmental (f) 138 22 — 160 161 21 — 182 Corporate (g) — 324 141 465 — 302 145 447 Hedge Funds and Similar Investments (h) 17 2 69 88 11 14 58 83 Private Equity and Other (i) — — 250 250 — — 252 252 DTE Electric Total $ 180 $ 348 $ 524 $ 1,052 $ 203 $ 337 $ 530 $ 1,070 _______________________________________ (a) For a description of levels within the fair value hierarchy see Note 11 to the Consolidated Financial Statements, "Fair Value." (b) Amounts represent assets valued at NAV as a practical expedient for fair value. (c) This category predominantly represents certain short-term fixed income securities and money market investments that are managed in separate accounts or commingled funds. Pricing for investments in this category is obtained from quoted prices in actively traded markets. (d) This category represents portfolios of large, medium and small capitalization domestic equities. Investments in this category include exchange-traded securities held in a commingled fund classified as NAV assets. (e) This category primarily consists of portfolios of non-U.S. developed and emerging market equities. Investments in this category include exchange-traded securities for which unadjusted quoted prices can be obtained and exchange-traded securities held in a commingled fund classified as NAV assets. (f) This category includes U.S. Treasuries, bonds and other governmental debt. Pricing for investments in this category is obtained from quoted prices in actively traded markets and quotations from broker or pricing services. (g) This category primarily consists of corporate bonds from diversified industries, bank loans, and mortgage backed securities. Pricing for investments in this category is obtained from quotations from broker or pricing services. Non-exchange traded securities and exchange-traded securities held in commingled funds are classified as NAV assets. (h) This category utilizes a diversified group of strategies that attempt to capture uncorrelated sources of return and includes publicly traded mutual funds, insurance-linked and asset-backed securities, commingled funds and limited partnership funds. Pricing for mutual funds in this category is obtained from quoted prices in actively traded markets. Pricing for insurance-linked and asset-backed securities is obtained from quotations from broker or pricing services. Commingled funds and limited partnership funds are classified as NAV assets. (i) This category includes a diversified group of funds and strategies that primarily invests in private equity partnerships. This category also includes investments in private real estate and private debt. All investments in this category are classified as NAV assets.
Schedule of Accumulated Benefit Obligations in Excess of Plan Assets	The following table reflects other postretirement benefit plans with accumulated postretirement benefit obligations in excess of plan assets as of December 31: DTE Energy DTE Electric 2024 2023 2024 2023 (In millions) Accumulated postretirement benefit obligation $ 530 $ 628 $ 501 $ 592 Fair value of plan assets 296 326 276 302 Accumulated postretirement benefit obligation in excess of plan assets $ 234 $ 302 $ 225 $ 290
Retiree healthcare plan (VEBA)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of VEBA Contributions	The following table provides contributions to the VEBA in: 2024 2023 2022 (In millions) DTE Energy $ 15 $ 16 $ 16 DTE Electric $ 6 $ 7 $ 7

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2024
Share-Based Payment Arrangement, Noncash Expense [Abstract]
Schedule of Components of Stock-Based Compensation	The following table summarizes the components of stock-based compensation for DTE Energy: 2024 2023 2022 (In millions) Stock-based compensation expense $ 54 $ 48 $ 62 Tax benefit $ 10 $ 9 $ 11
Schedule of Activity Relating to Performance Share Awards	DTE Energy recorded activity relating to performance share awards as follows: 2024 2023 2022 (In millions, except per share amounts) Weighted average grant date fair value of awards granted (per share) $ 106.04 $ 112.73 $ 120.25 Awards settled in cash (a) $ — $ 9 $ 10 Awards settled in stock (a) $ 63 $ 59 $ 72 Compensation expense $ 40 $ 34 $ 47 _______________________________________ (a) Sum of awards settled in cash and stock approximates the intrinsic value of the awards.
Schedule of Stock-based Compensation, Performance Shares Activity Rollforward	The following table summarizes DTE Energy’s performance share activity for the period ended December 31, 2024: Performance Shares Weighted Average Balance at December 31, 2023 990,493 $ 121.29 Grants 406,442 $ 106.04 Forfeitures (89,966) $ 109.69 Payouts (330,126) $ 102.83 Balance at December 31, 2024 976,843 $ 122.25
Schedule of Unrecognized Compensation Cost, Non-Vested Awards	As of December 31, 2024, DTE Energy's total unrecognized compensation cost related to non-vested stock incentive plan arrangements and the weighted average recognition period was as follows: Unrecognized Weighted Average (In millions) (In years) Stock awards $ 20 1.95 Performance shares 36 1.71 $ 56 1.80

Segment and Related Informati_2

Segment and Related Information (Tables)	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Financial Data of Business Segments	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. Year Ended December 31, 2024 2023 2022 (In millions) Electric segment (a) $ 71 $ 72 $ 71 Gas segment 16 17 13 DTE Vantage segment 43 68 78 Energy Trading segment 100 85 102 $ 230 $ 242 $ 264 _______________________________________ (a) Inter-segment billing for the Electric segment relating to Non-utility operations includes $3 million for the years ended December 31, 2024 and 2023 and $6 million for the year ended December 31, 2022. Financial data of DTE Energy's business segments follows: Electric (a) Gas DTE Vantage Energy Trading Total Reportable Segments Corporate and Other Reclassifications Total (In millions) 2024 Segment profit (loss) Operating Revenues — Utility operations $ 6,277 1,798 — — $ 8,075 — (85) $ 7,990 Operating Revenues — Non-utility operations $ 16 — 753 3,843 $ 4,612 — (145) $ 4,467 Depreciation and amortization $ 1,447 221 59 5 $ 1,732 — — $ 1,732 Interest expense $ 498 118 28 14 $ 658 351 (58) $ 951 Interest income $ (7) (10) (76) (15) $ (108) (86) 58 $ (136) Equity earnings (losses) of equity method investees $ — 1 15 — $ 16 (1) — $ 15 Other segment items (pre-tax) (b) $ 3,314 1,134 629 3,672 $ 8,749 6 (230) $ 8,525 Income Tax Expense (Benefit) $ (31) 77 (37) 42 $ 51 (85) — $ (34) Net Income (Loss) Attributable to DTE Energy Company $ 1,072 257 135 125 $ 1,589 (185) — $ 1,404 2024 Other segment financial data Investment in equity method investees $ 5 18 82 — $ 105 23 — $ 128 Capital expenditures and acquisitions $ 3,659 740 65 3 $ 4,467 — — $ 4,467 Goodwill $ 1,208 743 25 17 $ 1,993 — — $ 1,993 Total Assets $ 35,400 8,474 2,065 1,159 $ 47,098 4,723 (2,975) $ 48,846 2023 Segment profit (loss) Operating Revenues — Utility operations $ 5,804 1,748 — — $ 7,552 — (86) $ 7,466 Operating Revenues — Non-utility operations $ 14 — 809 4,612 $ 5,435 — (156) $ 5,279 Depreciation and amortization $ 1,340 209 53 4 $ 1,606 — — $ 1,606 Interest expense $ 432 102 15 18 $ 567 270 (46) $ 791 Interest income $ (20) (9) (32) (9) $ (70) (33) 46 $ (57) Equity earnings (losses) of equity method investees $ — 1 7 — $ 8 (5) — $ 3 Other segment items (pre-tax) (b) $ 3,216 1,058 635 4,151 $ 9,060 18 (242) $ 8,836 Income Tax Expense (Benefit) $ 78 93 (22) 112 $ 261 (92) — $ 169 Net Income (Loss) Attributable to DTE Energy Company $ 772 294 153 336 $ 1,555 (158) — $ 1,397 2023 Other segment financial data Investment in equity method investees $ 5 16 118 — $ 139 27 — $ 166 Capital expenditures and acquisitions $ 3,128 746 57 3 $ 3,934 — — $ 3,934 Goodwill $ 1,208 743 25 17 $ 1,993 — — $ 1,993 Total Assets $ 32,292 7,722 1,122 1,166 $ 42,302 4,150 (1,697) $ 44,755 _______________________________________ (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 Total (In millions) 2022 Segment profit (loss) Operating Revenues — Utility operations $ 6,397 1,924 — — $ 8,321 — (78) $ 8,243 Operating Revenues — Non-utility operations $ 15 — 848 10,308 $ 11,171 — (186) $ 10,985 Depreciation and amortization $ 1,218 192 52 5 $ 1,467 1 — $ 1,468 Interest expense $ 372 91 15 17 $ 495 210 (30) $ 675 Interest income $ (8) (8) (28) (6) $ (50) (26) 30 $ (46) Equity earnings (losses) of equity method investees $ — 2 — — $ 2 (16) — $ (14) Other segment items (pre-tax) (b) $ 3,849 1,287 699 10,415 $ 16,250 47 (264) $ 16,033 Income Tax Expense (Benefit) $ 25 88 18 (31) $ 100 (71) — $ 29 Net Income (Loss) Attributable to DTE Energy Company $ 956 272 92 (92) $ 1,228 (145) — $ 1,083 2022 Other segment financial data Investment in equity method investees $ 6 15 111 — $ 132 33 — $ 165 Capital expenditures and acquisitions $ 2,620 693 62 3 $ 3,378 — — $ 3,378 Goodwill $ 1,208 743 25 17 $ 1,993 — — $ 1,993 Total Assets $ 30,342 7,321 1,077 1,385 $ 40,125 4,409 (1,851) $ 42,683 _______________________________________ (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.

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2024
Related Party Transactions [Abstract]
Summary of Related Party Transactions	The following is a summary of DTE Electric's transactions with affiliated companies: 2024 2023 2022 (In millions) Revenues and Other Income Energy sales $ 11 $ 11 $ 8 Other services and interest $ — $ 3 $ — Shared capital assets $ 58 $ 58 $ 57 Costs Fuel and purchased power $ 65 $ 50 $ 58 Other services and interest $ 4 $ 2 $ 1 Corporate expenses $ 342 $ 299 $ 379 Other Dividends declared $ 776 $ 1,002 $ 763 Dividends paid $ 776 $ 1,002 $ 763 Capital contribution from DTE Energy $ 634 $ 759 $ 600

Organization and Basis of Pre_3

Organization and Basis of Presentation (Details Textuals) customer in Millions, $ in Millions	Dec. 31, 2024 USD ($) customer	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of electric utility customers | customer	2.3
Number of gas utility customers | customer	1.3
Variable Interest Entity [Line Items]
Material potential exposure	$ 0
Investments in equity method investees	128	$ 166	$ 165
Amount in excess of carrying amount	94	$ 101
DTE Electric
Variable Interest Entity [Line Items]
Material potential exposure	$ 0

Organization and Basis of Pre_4

Organization and Basis of Presentation (Consolidated Variable Interest Entities) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Cash and cash equivalents	$ 24	$ 26
Restricted cash	64	25
Accounts receivable	1,690	1,632
Securitized regulatory assets	690	758
Total Assets	48,846	44,755	$ 42,683
LIABILITIES
Accounts payable	1,387	1,361
Accrued interest	224	170
Regulatory liabilities — current	181	71
DTE Electric
ASSETS
Cash and cash equivalents	11	15
Restricted cash	48	17
Securitized regulatory assets	690	758
Notes receivable	42	0
Total Assets	35,221	32,185
LIABILITIES
Accrued interest	128	113
Regulatory liabilities — current	156	49
Variable interest entity, primary beneficiary
ASSETS
Cash and cash equivalents	6	7
Restricted cash	64	25
Accounts receivable	27	85
Securitized regulatory assets	690	758
Notes receivable	657	183
Other current and long-term assets	1	4
Total Assets	1,445	1,062
LIABILITIES
Accounts payable	26	59
Accrued interest	12	6
Regulatory liabilities — current	27	8
Securitization bonds	706	769
Other current and long-term liabilities	20	12
Total liabilities	791	854
Notes receivable recorded in Current Assets-Other	14
Current portion of securitization bonds	71	64
Variable interest entity, primary beneficiary | DTE Electric
ASSETS
Cash and cash equivalents	0	0
Restricted cash	48	17
Accounts receivable	6	6
Securitized regulatory assets	690	758
Notes receivable	0	0
Other current and long-term assets	0	1
Total Assets	744	782
LIABILITIES
Accounts payable	0	0
Accrued interest	12	6
Regulatory liabilities — current	27	8
Securitization bonds	706	769
Other current and long-term liabilities	0	0
Total liabilities	745	783
Current portion of securitization bonds	$ 71	$ 64

Organization and Basis of Pre_5

Organization and Basis of Presentation (Non-Consolidated Variable Interest Entities) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Investments in equity method investees	$ 128	$ 166	$ 165
Notes receivable	898	420
Variable interest entity, nonconsolidated
Variable Interest Entity [Line Items]
Investments in equity method investees	65	112
Notes receivable	$ 0	$ 15

Significant Accounting Polici_4

Significant Accounting Policies (Schedule of Other Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Other Nonoperating Income, by Component [Line Items]
Allowance for equity funds used during construction	$ 86	$ 42	$ 29
Contract services	34	26	28
Investment income	17	17	3
Equity earnings (losses) of equity method investees	15	3	(14)
Other	15	14	12
Other income	167	102	58
DTE Electric
Schedule of Other Nonoperating Income, by Component [Line Items]
Allowance for equity funds used during construction	84	40	26
Contract services	33	25	27
Investment income	13	11	3
Other	14	11	9
Other income	$ 144	$ 87	$ 65

Significant Accounting Polici_5

Significant Accounting Policies (Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 11,055	$ 10,401	$ 8,713
Other comprehensive income (loss) before reclassifications	37	(9)
Amounts reclassified from Accumulated other comprehensive loss	4	4
Other comprehensive income (loss)	41	(5)	50
Ending balance	11,704	11,055	10,401
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(67)	(62)	(112)
Other comprehensive income (loss)	41	(5)	50
Ending balance	(26)	(67)	(62)
Net Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(17)	(4)
Other comprehensive income (loss) before reclassifications	47	(14)
Amounts reclassified from Accumulated other comprehensive loss	0	1
Other comprehensive income (loss)	47	(13)
Ending balance	30	(17)	(4)
Benefit Obligations
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(52)	(58)
Other comprehensive income (loss) before reclassifications	(3)	3
Amounts reclassified from Accumulated other comprehensive loss	4	3
Other comprehensive income (loss)	1	6
Ending balance	(51)	(52)	(58)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	2	0
Other comprehensive income (loss) before reclassifications	(7)	2
Amounts reclassified from Accumulated other comprehensive loss	0	0
Other comprehensive income (loss)	(7)	2
Ending balance	$ (5)	$ 2	$ 0

Significant Accounting Polici_6

Significant Accounting Policies (Details Textuals) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Significant Accounting Policies [Line Items]
Unbilled revenues	$ 1,690,000,000	$ 1,632,000,000
Specific review of probable future collections based on receivable balances, threshold duration	30 days
Goodwill impairments	$ 0	0
Goodwill changes in carrying value	0	0
Intangible assets amortization expense	16,000,000	15,000,000	$ 16,000,000
Excise and sales taxes net impact on statement of operations	0
Charitable contributions	10,000,000	0	$ 0
Natural gas inventory
Significant Accounting Policies [Line Items]
LIFO inventory amount	69,000,000	73,000,000
Excess of replacement costs over stated LIFO value	81,000,000	50,000,000
Notes receivable
Significant Accounting Policies [Line Items]
Financing receivables	886,000,000
Notes receivable | Internal grade 1
Significant Accounting Policies [Line Items]
Financing receivables	5,000,000
Net investment in leases
Significant Accounting Policies [Line Items]
Financing receivables	40,000,000
Net investment in leases | Internal grade 1
Significant Accounting Policies [Line Items]
Financing receivables	36,000,000
Past due
Significant Accounting Policies [Line Items]
Financing receivables	$ 0
Minimum | Notes receivable
Significant Accounting Policies [Line Items]
Number of days after which receivable is considered delinquent	60 days
Maximum | Notes receivable
Significant Accounting Policies [Line Items]
Number of days after which receivable is considered delinquent	120 days
DTE Electric and DTE Gas
Significant Accounting Policies [Line Items]
Threshold period past due for write-off of trade accounts receivable	150 days
DTE Electric and DTE Gas | Accounts Receivable
Significant Accounting Policies [Line Items]
Number of days after which receivable is considered delinquent	21 days
DTE Electric | Notes receivable
Significant Accounting Policies [Line Items]
Financing receivables	$ 44,000,000
DTE Electric | Notes receivable | Internal grade 1
Significant Accounting Policies [Line Items]
Financing receivables	43,000,000
DTE Electric | Net investment in leases
Significant Accounting Policies [Line Items]
Financing receivables	0
DTE Electric | Net investment in leases | Internal grade 1
Significant Accounting Policies [Line Items]
Financing receivables	0
Unbilled revenues
Significant Accounting Policies [Line Items]
Unbilled revenues	992,000,000	882,000,000
Unbilled revenues | DTE Electric
Significant Accounting Policies [Line Items]
Unbilled revenues	$ 303,000,000	$ 311,000,000

Significant Accounting Polici_7

Significant Accounting Policies (Financing Receivables Classified by Internal Grade of Credit Risk) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Notes receivable
Financing receivables by year of origination
2024	$ 622
2023	7
2022 and prior	257
Total	886
Notes receivable | DTE Electric
Financing receivables by year of origination
Total	44
Notes receivable | Internal grade 1
Financing receivables by year of origination
2024	0
2023	1
2022 and prior	4
Total	5
Notes receivable | Internal grade 1 | DTE Electric
Financing receivables by year of origination
Total	43
Notes receivable | Internal grade 1 | DTE Electric | Affiliates
Financing receivables by year of origination
Total	42
Notes receivable | Internal grade 2
Financing receivables by year of origination
2024	622
2023	6
2022 and prior	253
Total	881
Notes receivable | Internal grade 2 | DTE Electric
Financing receivables by year of origination
Total	1
Net investment in leases
Financing receivables by year of origination
2024	4
2023	0
2022 and prior	36
Total	40
Net investment in leases | DTE Electric
Financing receivables by year of origination
Total	0
Net investment in leases | Internal grade 1
Financing receivables by year of origination
2024	0
2023	0
2022 and prior	36
Total	36
Net investment in leases | Internal grade 1 | DTE Electric
Financing receivables by year of origination
Total	0
Net investment in leases | Internal grade 2
Financing receivables by year of origination
2024	4
2023	0
2022 and prior	0
Total	4
Net investment in leases | Internal grade 2 | DTE Electric
Financing receivables by year of origination
Total	$ 0

Significant Accounting Polici_8

Significant Accounting Policies (Roll-Forward of Activity for Financing Receivables Credit Loss Reserves) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 63	$ 79	$ 92
Current period provision	76	52	49
Write-offs charged against allowance	(108)	(112)	(107)
Recoveries of amounts previously written off	41	44	45
Ending balance	72	63	79
DTE Electric
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	41	49	54
Current period provision	49	36	33
Write-offs charged against allowance	(70)	(72)	(66)
Recoveries of amounts previously written off	26	28	28
Ending balance	46	41	49
Trade accounts receivable
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	62	78	89
Current period provision	74	52	49
Write-offs charged against allowance	(108)	(112)	(105)
Recoveries of amounts previously written off	41	44	45
Ending balance	69	62	78
Other receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1	1	3
Current period provision	2	0	0
Write-offs charged against allowance	0	0	(2)
Recoveries of amounts previously written off	0	0	0
Ending balance	$ 3	$ 1	$ 1

Significant Accounting Polici_9

Significant Accounting Policies (Uncollectible Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Uncollectible expense	$ 74	$ 55	$ 55
DTE Electric
Accounts, Notes, Loans and Financing Receivable [Line Items]
Uncollectible expense	$ 50	$ 38	$ 35

Significant Accounting Polic_10

Significant Accounting Policies (Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (119)	$ (103)
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	17	13
Long-term intangible assets
Gross Carrying Value	263	259
Accumulated Amortization	(119)	(103)
Net Carrying Value	144	156
Carbon offsets
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	14	10
Renewable energy credits
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	1	2
Other
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	2	1
Contract intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	246	246
Accumulated Amortization	(119)	(103)
Net Carrying Value	127	143
Long-term intangible assets
Accumulated Amortization	$ (119)	$ (103)
Contract intangibles | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Lives	12 years
Contract intangibles | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Lives	26 years

Significant Accounting Polic_11

Significant Accounting Policies (Future Amortization Expense Intangible Assets) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Estimated amortization expense
2025	$ 15
2026	15
2027	15
2028	14
2029	$ 14

Significant Accounting Polic_12

Significant Accounting Policies (Cloud Computing Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Significant Accounting Policies [Line Items]
Amortization expense of capitalized cloud computing costs	$ 12	$ 10	$ 4
Gross value of capitalized cloud computing costs	64	56
Accumulated amortization of capitalized cloud computing costs	27	15
DTE Electric
Significant Accounting Policies [Line Items]
Amortization expense of capitalized cloud computing costs	10	8	$ 3
Gross value of capitalized cloud computing costs	51	44
Accumulated amortization of capitalized cloud computing costs	$ 22	$ 12

Revenue (Disaggregation of Reve

Revenue (Disaggregation of Revenue by Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 12,457	$ 12,745	$ 19,228
Operating Segments | Electric
Disaggregation of Revenue [Line Items]
Revenues	6,293	5,818	6,412
Operating Segments | Electric | Residential
Disaggregation of Revenue [Line Items]
Revenues	3,045	2,847	2,911
Operating Segments | Electric | Commercial
Disaggregation of Revenue [Line Items]
Revenues	2,263	2,114	1,958
Operating Segments | Electric | Industrial
Disaggregation of Revenue [Line Items]
Revenues	715	732	659
Operating Segments | Electric | Other
Disaggregation of Revenue [Line Items]
Revenues	270	125	884
Operating Segments | Electric | Other | DTE Sustainable Generation
Disaggregation of Revenue [Line Items]
Revenues	16	14	15
Operating Segments | Gas
Disaggregation of Revenue [Line Items]
Revenues	1,798	1,748	1,924
Operating Segments | Gas | Gas sales
Disaggregation of Revenue [Line Items]
Revenues	1,307	1,324	1,442
Operating Segments | Gas | End User Transportation
Disaggregation of Revenue [Line Items]
Revenues	246	250	264
Operating Segments | Gas | Intermediate Transportation
Disaggregation of Revenue [Line Items]
Revenues	83	85	81
Operating Segments | Gas | Other
Disaggregation of Revenue [Line Items]
Revenues	162	89	137
Operating Segments | DTE Vantage
Disaggregation of Revenue [Line Items]
Revenues	753	809	848
Operating Segments | Energy Trading segment
Disaggregation of Revenue [Line Items]
Revenues	$ 3,843	$ 4,612	$ 10,308

Revenue (Revenues Outside the S

Revenue (Revenues Outside the Scope of Topic 606) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Leases	$ 60	$ 59	$ 82
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Regulated and Unregulated Operating Revenue	Regulated and Unregulated Operating Revenue	Regulated and Unregulated Operating Revenue
Operating Segments
Disaggregation of Revenue [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Regulated and Unregulated Operating Revenue	Regulated and Unregulated Operating Revenue	Regulated and Unregulated Operating Revenue
Operating Segments | Electric
Disaggregation of Revenue [Line Items]
Alternative Revenue Program	$ 43	$ 36	$ 35
Other revenues	25	22	19
Operating Segments | Gas
Disaggregation of Revenue [Line Items]
Alternative Revenue Program	21	16	9
Other revenues	11	8	7
Operating Segments | DTE Vantage
Disaggregation of Revenue [Line Items]
Leases	60	59	82
Operating Segments | Energy Trading segment
Disaggregation of Revenue [Line Items]
Derivatives	$ 2,540	$ 3,436	$ 8,489

Revenue (Details Textuals)

Revenue (Details Textuals)	12 Months Ended
	Dec. 31, 2024
DTE Vantage
Revenue from External Customer [Line Items]
Payment terms	30 days

Revenue (Deferred Revenue) (Det

Revenue (Deferred Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Contract Liability [Roll Forward]
Beginning Balance	$ 106	$ 94
Increases due to cash received or receivable, excluding amounts recognized as revenue during the period	132	103
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	(100)	(91)
Ending Balance	$ 138	$ 106

Revenue (Expected Recognition o

Revenue (Expected Recognition of Deferred Revenue) (Details) - Deferred revenue $ in Millions	Dec. 31, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 138
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 135
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 1
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 1
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 1
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0
Remaining performance obligation, expected timing of satisfaction

Revenue (Expected Recognition_2

Revenue (Expected Recognition of Deferred Revenue for Fixed Consideration) (Details) - Fixed Consideration $ in Millions	Dec. 31, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 1,022
DTE Electric
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 225
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | DTE Electric
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 1
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 170
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | DTE Electric
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 133
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | DTE Electric
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 90
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | DTE Electric
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 77
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01 | DTE Electric
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 327
Remaining performance obligation, expected timing of satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01 | DTE Electric
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0
Remaining performance obligation, expected timing of satisfaction

Property, Plant, and Equipmen_2

Property, Plant, and Equipment (Summary of Property by Classification) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	$ 40,840	$ 37,274
Accumulated depreciation and amortization	(9,947)	(9,105)
Net property, plant, and equipment	30,893	28,169
DTE Vantage
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	1,135	1,075
Accumulated depreciation and amortization	(520)	(479)
Other
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	272	234
Accumulated depreciation and amortization	(78)	(66)
DTE Electric
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	30,801	27,936
Accumulated depreciation and amortization	(7,404)	(6,570)
Net property, plant, and equipment	23,397	21,366
DTE Electric | Distribution
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	14,995	13,673
Accumulated depreciation and amortization	(3,513)	(3,205)
DTE Electric | Dispatchable generation
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	8,428	7,969
Accumulated depreciation and amortization	(2,146)	(1,872)
DTE Electric | Renewable generation
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	3,933	3,074
Accumulated depreciation and amortization	(615)	(524)
DTE Electric | Other
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	3,445	3,220
Accumulated depreciation and amortization	(1,130)	(969)
DTE Gas
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	8,632	8,029
Accumulated depreciation and amortization	(1,945)	(1,990)
DTE Gas | Distribution
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	6,334	5,838
Accumulated depreciation and amortization	(1,319)	(1,365)
DTE Gas | Other
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	500	481
Accumulated depreciation and amortization	(210)	(193)
DTE Gas | Transmission
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	1,212	1,132
Accumulated depreciation and amortization	(278)	(300)
DTE Gas | Storage
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	586	578
Accumulated depreciation and amortization	$ (138)	$ (132)

Property, Plant, and Equipmen_3

Property, Plant, and Equipment (Schedule of AFUDC and Capitalized Interest Rates (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant, and Equipment [Line Items]
Non-regulated businesses capitalized interest	4.25%	3%	3%
DTE Electric
Property, Plant, and Equipment [Line Items]
AFUDC	5.56%	5.53%	5.46%
DTE Gas
Property, Plant, and Equipment [Line Items]
AFUDC	5.45%	5.41%	5.41%

Property, Plant, and Equipmen_4

Property, Plant, and Equipment (Schedule of AFUDC and Interest Capitalized) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Allowance for debt funds used during construction and interest capitalized	$ 36	$ 20	$ 13
Allowance for equity funds used during construction	86	42	29
Total	122	62	42
DTE Electric
Property, Plant, and Equipment [Line Items]
Allowance for debt funds used during construction	34	15	11
Allowance for equity funds used during construction	84	40	26
Total	$ 118	$ 55	$ 37

Property, Plant, and Equipmen_5

Property, Plant, and Equipment (Details Textuals)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Minimum | Non-utility
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	3 years
Minimum | Capitalized software
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	3 years
Maximum | Non-utility
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	50 years
Maximum | Capitalized software
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	15 years
DTE Electric | Minimum | Other
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	3 years
DTE Electric | Minimum | Capitalized software
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	3 years
DTE Electric | Maximum | Other
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	45 years
DTE Electric | Maximum | Capitalized software
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	15 years
DTE Gas | Minimum | Other
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	3 years
DTE Gas | Maximum | Other
Public Utility Property, Plant, and Equipment [Line Items]
Property plant and equipment, useful life	39 years
DTE Electric
Public Utility Property, Plant, and Equipment [Line Items]
Composite depreciation rate for plants in service	4.20%	4.40%	4.20%
DTE Gas
Public Utility Property, Plant, and Equipment [Line Items]
Composite depreciation rate for plants in service	2.90%

Property, Plant, and Equipmen_6

Property, Plant, and Equipment (Average Estimated Useful Life of Each Major Class) (Details)	12 Months Ended
	Dec. 31, 2024
DTE Electric
Public Utility Property, Plant, and Equipment [Line Items]
Useful Life - Distribution	38 years
Useful Life - Generation	32 years
DTE Gas
Public Utility Property, Plant, and Equipment [Line Items]
Useful Life - Distribution	55 years
Transmission	67 years
Useful Life - Storage	60 years

Property, Plant, and Equipmen_7

Property, Plant, and Equipment (Depreciation and Amortization) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	$ 1,316	$ 1,239	$ 1,148
Regulatory assets and liabilities	394	344	297
Intangible assets	16	15	16
Other	6	8	7
Depreciation and amortization	1,732	1,606	1,468
DTE Electric
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment	1,089	1,029	951
Regulatory assets and liabilities	338	292	248
Other	5	5	5
Depreciation and amortization	$ 1,432	$ 1,326	$ 1,204

Property, Plant, and Equipmen_8

Property, Plant, and Equipment (Capitalized Software) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant, and Equipment [Line Items]
Amortization expense of capitalized software	$ 192	$ 189	$ 159
Gross carrying value of capitalized software	1,005	940
Accumulated amortization of capitalized software	476	427
DTE Electric
Property, Plant, and Equipment [Line Items]
Amortization expense of capitalized software	175	172	$ 146
Gross carrying value of capitalized software	910	849
Accumulated amortization of capitalized software	$ 414	$ 369

Jointly-Owned Utility Plant (De

Jointly-Owned Utility Plant (Details Textuals)	Dec. 31, 2024 plant
Belle River Unit 1
Jointly-Owned Utility Plant Interests [Line Items]
Percent of the total capacity and energy of the plant	19%
Ludington Hydroelectric Pumped Storage
Jointly-Owned Utility Plant Interests [Line Items]
Percent of the total capacity and energy of the plant	51%
DTE Electric
Jointly-Owned Utility Plant Interests [Line Items]
Number of power plants owned	2

Jointly-Owned Utility Plant (Ow

Jointly-Owned Utility Plant (Ownership Information) (Details) - DTE Electric $ in Millions	Dec. 31, 2024 USD ($) MW
Belle River
Jointly-Owned Utility Plant Interests [Line Items]
Total plant capacity (MW) | MW	1,270
Ownership interest	81%
Investment in Property, plant, and equipment (in millions)	$ 2,053
Accumulated depreciation (in millions)	$ 1,140
Ludington Hydroelectric Pumped Storage
Jointly-Owned Utility Plant Interests [Line Items]
Total plant capacity (MW) | MW	2,290
Ownership interest	49%
Investment in Property, plant, and equipment (in millions)	$ 656
Accumulated depreciation (in millions)	$ 160

Asset Retirement Obligations (R

Asset Retirement Obligations (Rollforward) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset retirement obligations at January 1	$ 3,556	$ 3,460	$ 3,162
Accretion	211	198	184
Liabilities incurred	324	7	24
Liabilities settled	(14)	(96)	(7)
Revision in estimated cash flows	(46)	(13)	97
Asset retirement obligations at December 31	4,031	3,556	3,460
DTE Electric
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset retirement obligations at January 1	3,326	3,221	2,932
Accretion	199	185	172
Liabilities incurred	323	4	22
Liabilities settled	(11)	(81)	(2)
Revision in estimated cash flows	(46)	(3)	97
Asset retirement obligations at December 31	$ 3,791	$ 3,326	$ 3,221

Asset Retirement Obligations (D

Asset Retirement Obligations (Details Textuals) - Fermi 2	Dec. 31, 2024 USD ($)
Asset Retirement Obligations [Line Items]
Nuclear decommissioning liabilities funded through surcharge and included in ARO balance	$ 2,900,000,000
Liabilities balance upon completion of decommissioning	$ 0

Regulatory Matters (Schedule of

Regulatory Matters (Schedule of Regulatory Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Regulatory Assets [Line Items]
Regulatory assets	$ 6,821	$ 6,317
Less amount included in Current Assets	(50)	(108)
Regulatory assets, noncurrent	6,771	6,209
Securitized regulatory assets	690	758
Recoverable undepreciated costs on retiring plants
Regulatory Assets [Line Items]
Regulatory assets	2,986	2,736
Pension
Regulatory Assets [Line Items]
Regulatory assets	1,315	1,421
Other postretirement costs
Regulatory Assets [Line Items]
Regulatory assets	91	163
Fermi 2 asset retirement obligation
Regulatory Assets [Line Items]
Regulatory assets	951	952
Removal costs asset
Regulatory Assets [Line Items]
Regulatory assets	501	223
Enhanced tree trimming program deferred costs
Regulatory Assets [Line Items]
Regulatory assets	211	157
Recoverable Michigan income taxes
Regulatory Assets [Line Items]
Regulatory assets	119	133
Recoverable income taxes related to AFUDC equity
Regulatory Assets [Line Items]
Regulatory assets	116	89
Energy Waste Reduction incentive
Regulatory Assets [Line Items]
Regulatory assets	102	90
Renewable ITC offset
Regulatory Assets [Line Items]
Regulatory assets	89	0
Deferred environmental costs
Regulatory Assets [Line Items]
Regulatory assets	43	46
Unamortized loss on reacquired debt
Regulatory Assets [Line Items]
Regulatory assets	38	41
Customer360 deferred costs
Regulatory Assets [Line Items]
Regulatory assets	34	38
Ludington contract dispute costs
Regulatory Assets [Line Items]
Regulatory assets	31	10
Accrued PSCR/GCR revenue
Regulatory Assets [Line Items]
Regulatory assets	0	55
Other
Regulatory Assets [Line Items]
Regulatory assets	194	163
DTE Electric
Regulatory Assets [Line Items]
Regulatory assets	6,226	5,695
Less amount included in Current Assets	(39)	(99)
Regulatory assets, noncurrent	6,187	5,596
Securitized regulatory assets	690	758
DTE Electric | Recoverable undepreciated costs on retiring plants
Regulatory Assets [Line Items]
Regulatory assets	2,986	2,736
DTE Electric | Pension
Regulatory Assets [Line Items]
Regulatory assets	971	1,045
DTE Electric | Other postretirement costs
Regulatory Assets [Line Items]
Regulatory assets	0	67
DTE Electric | Fermi 2 asset retirement obligation
Regulatory Assets [Line Items]
Regulatory assets	951	952
DTE Electric | Removal costs asset
Regulatory Assets [Line Items]
Regulatory assets	501	223
DTE Electric | Enhanced tree trimming program deferred costs
Regulatory Assets [Line Items]
Regulatory assets	211	157
DTE Electric | Recoverable Michigan income taxes
Regulatory Assets [Line Items]
Regulatory assets	99	110
DTE Electric | Recoverable income taxes related to AFUDC equity
Regulatory Assets [Line Items]
Regulatory assets	107	80
DTE Electric | Energy Waste Reduction incentive
Regulatory Assets [Line Items]
Regulatory assets	82	72
DTE Electric | Renewable ITC offset
Regulatory Assets [Line Items]
Regulatory assets	89	0
DTE Electric | Deferred environmental costs
Regulatory Assets [Line Items]
Regulatory assets	0	0
DTE Electric | Unamortized loss on reacquired debt
Regulatory Assets [Line Items]
Regulatory assets	29	31
DTE Electric | Customer360 deferred costs
Regulatory Assets [Line Items]
Regulatory assets	34	38
DTE Electric | Ludington contract dispute costs
Regulatory Assets [Line Items]
Regulatory assets	31	10
DTE Electric | Accrued PSCR/GCR revenue
Regulatory Assets [Line Items]
Regulatory assets	0	55
DTE Electric | Other
Regulatory Assets [Line Items]
Regulatory assets	$ 135	$ 119

Regulatory Matters (Schedule _2

Regulatory Matters (Schedule of Regulatory Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Regulatory Liabilities [Line Items]
Regulatory liabilities	$ 3,037	$ 2,674
Less amount included in Current Liabilities	(181)	(71)
Regulatory liabilities, noncurrent	2,856	2,603
Refundable federal income taxes
Regulatory Liabilities [Line Items]
Regulatory liabilities	1,733	1,823
Removal costs liability
Regulatory Liabilities [Line Items]
Regulatory liabilities	506	342
Non-service pension and other postretirement costs
Regulatory Liabilities [Line Items]
Regulatory liabilities	255	199
Negative other postretirement offset
Regulatory Liabilities [Line Items]
Regulatory liabilities	214	210
Accrued PSCR/GCR refund
Regulatory Liabilities [Line Items]
Regulatory liabilities	136	21
Renewable energy
Regulatory Liabilities [Line Items]
Regulatory liabilities	90	7
Other
Regulatory Liabilities [Line Items]
Regulatory liabilities	103	72
DTE Electric
Regulatory Liabilities [Line Items]
Regulatory liabilities	1,909	1,759
Less amount included in Current Liabilities	(156)	(49)
Regulatory liabilities, noncurrent	1,753	1,710
DTE Electric | Refundable federal income taxes
Regulatory Liabilities [Line Items]
Regulatory liabilities	1,389	1,463
DTE Electric | Removal costs liability
Regulatory Liabilities [Line Items]
Regulatory liabilities	0	0
DTE Electric | Non-service pension and other postretirement costs
Regulatory Liabilities [Line Items]
Regulatory liabilities	94	84
DTE Electric | Negative other postretirement offset
Regulatory Liabilities [Line Items]
Regulatory liabilities	139	142
DTE Electric | Accrued PSCR/GCR refund
Regulatory Liabilities [Line Items]
Regulatory liabilities	111	0
DTE Electric | Renewable energy
Regulatory Liabilities [Line Items]
Regulatory liabilities	90	7
DTE Electric | Other
Regulatory Liabilities [Line Items]
Regulatory liabilities	$ 86	$ 63

Regulatory Matters (Regulation

Regulatory Matters (Regulation and Assets and Liabilities) (Details)	Dec. 31, 2024	Dec. 01, 2023
Other postretirement costs | DTE Electric
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory liability		7 years
Deferred environmental costs
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	10 years
Customer360 deferred costs
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	15 years
Securitized regulatory asset, tree trim surge costs | Maximum
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	5 years
Securitized regulatory asset, River Rouge costs | Maximum
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	14 years
Securitized regulatory asset, St Clair and Trenton Channel costs | Maximum
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	15 years

Regulatory Matters (2024 Gas Ra

Regulatory Matters (2024 Gas Rate Case Filing) (Details) - MPSC - DTE Gas - USD ($) $ in Millions			12 Months Ended
	Nov. 07, 2024	Jan. 08, 2024	Dec. 31, 2024
Public Utilities, General Disclosures [Line Items]
Approved return on equity, percent			9.80%
2024 DTE Gas Rate Case Filing
Public Utilities, General Disclosures [Line Items]
Requested rate increase		$ 266
Approved return on equity, percent	9.80%	9.90%
Requested return on equity, percent		10.25%
Approved revenue increase	$ 114
2024 DTE Gas Rate Case Filing | Recovery Mechanism, Customer Rate Increase
Public Utilities, General Disclosures [Line Items]
Requested rate increase		$ 160
2024 DTE Gas Rate Case Filing | Recovery Mechanism, Infrastructure Recovery
Public Utilities, General Disclosures [Line Items]
Requested rate increase		$ 106

Regulatory Matters (2024 Electr

Regulatory Matters (2024 Electric Rate Case Filing) (Details) - MPSC - DTE Electric - USD ($) $ in Millions			12 Months Ended
	Jan. 23, 2025	Mar. 28, 2024	Dec. 31, 2024
Public Utilities, General Disclosures [Line Items]
Approved return on equity, percent			9.90%
2024 DTE Electric Rate Case Filing
Public Utilities, General Disclosures [Line Items]
Requested rate increase		$ 456
Approved return on equity, percent		9.90%
Requested return on equity, percent		10.50%
2024 DTE Electric Rate Case Filing | Subsequent Event
Public Utilities, General Disclosures [Line Items]
Approved return on equity, percent	9.90%
Approved revenue increase	$ 217
Disallowed capital expenditures	$ 12

Income Taxes (Details Textuals)

Income Taxes (Details Textuals) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Accounts receivable	$ 1,690,000,000	$ 1,632,000,000
Deferred tax asset, general business tax credit carryforwards	1,600,000,000
State and local net operating loss carryforwards	68,000,000	76,000,000
Valuation allowance	25,000,000	39,000,000
Unrecognized tax benefits	0	0
Interest expense on income taxes	0	0	$ 0
Accrued interest on income taxes	0	0	5,000,000
Penalties accrued on income taxes			0
State and local net operating loss carryforwards
Operating Loss Carryforwards [Line Items]
Valuation allowance	16,000,000	19,000,000
Charitable Contributions Carryforward
Operating Loss Carryforwards [Line Items]
Valuation allowance	3,000,000	20,000,000
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	904,000,000
DTE Electric
Operating Loss Carryforwards [Line Items]
State and local net operating loss carryforwards	42,000,000	49,000,000
Valuation allowance	5,000,000	0
Unrecognized tax benefits	0	0
Interest expense on income taxes	0	0	1,000,000
Accrued interest on income taxes	0	0	8,000,000
Penalties accrued on income taxes			$ 0
DTE Electric | General Business Credits
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	583,000,000
DTE Electric | Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	142,000,000
DTE Electric | Affiliates
Operating Loss Carryforwards [Line Items]
Accounts receivable	6,000,000	12,000,000
DTE Electric | Federal Income Taxes | DTE Energy
Operating Loss Carryforwards [Line Items]
Accounts receivable	$ 5,000,000	$ 7,000,000

Income Taxes (Reconciliation of

Income Taxes (Reconciliation of Income Tax Expense to the Statutory Federal Income Tax Rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Entity Information [Line Items]
Income Before Income Taxes	$ 1,370	$ 1,566	$ 1,112
Income tax expense at 21% statutory rate	288	329	234
Production tax credits	(169)	(91)	(91)
Investment tax credits	(128)	(44)	(1)
TCJA regulatory liability amortization	(66)	(63)	(155)
AFUDC equity	(17)	(7)	(5)
State and local income taxes, net of federal benefit	59	59	42
Other, net	(1)	(14)	5
Income Tax Expense (Benefit)	$ (34)	$ 169	$ 29
Effective income tax rate	(2.50%)	10.80%	2.60%
Inflation and Reduction Act of 2022, tax credit	$ 231
Nuclear tax credit	89
DTE Electric
Entity Information [Line Items]
Income Before Income Taxes	1,040	$ 850	$ 981
Income tax expense at 21% statutory rate	218	179	206
Production tax credits	(162)	(79)	(83)
Investment tax credits	(70)	(1)	(1)
TCJA regulatory liability amortization	(55)	(53)	(145)
AFUDC equity	(16)	(7)	(4)
State and local income taxes, net of federal benefit	57	45	56
Other, net	(4)	(6)	(3)
Income Tax Expense (Benefit)	$ (32)	$ 78	$ 26
Effective income tax rate	(3.10%)	9.20%	2.70%
Inflation and Reduction Act of 2022, tax credit	$ 231
Nuclear tax credit	$ 89

Income Taxes (Components of Inc

Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current income tax benefit
Federal	$ (226)	$ (10)	$ (13)
State and other income tax	(2)	(2)	(2)
Total current income taxes	(228)	(12)	(15)
Deferred income tax expense (benefit)
Federal	117	103	(13)
State and other income tax	77	78	57
Total deferred income taxes	194	181	44
Income Tax Expense (Benefit)	(34)	169	29
DTE Electric
Current income tax benefit
Federal	(228)	1	1
State and other income tax	0	(5)	0
Total current income taxes	(228)	(4)	1
Deferred income tax expense (benefit)
Federal	124	19	(46)
State and other income tax	72	63	71
Total deferred income taxes	196	82	25
Income Tax Expense (Benefit)	$ (32)	$ 78	$ 26

Income Taxes (Deferred Tax Asse

Income Taxes (Deferred Tax Assets (Liabilities)) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Components of Deferred Tax Assets and Liabilities [Abstract]
Property, plant, and equipment	$ (3,695)	$ (3,423)
Regulatory assets and liabilities	(1,272)	(1,158)
Tax credit carryforwards	1,604	1,519
Pension and benefits	55	77
Federal net operating loss carryforward	190	202
State and local net operating loss carryforwards	68	76
Investments in equity method investees	(28)	(33)
Other	145	130
Deferred tax assets (liabilities)	(2,933)	(2,610)
Less: Valuation allowance	(25)	(39)
Long-term deferred income tax liabilities	(2,958)	(2,649)
Deferred income tax assets	2,508	2,415
Deferred income tax liabilities	(5,466)	(5,064)
DTE Electric
Components of Deferred Tax Assets and Liabilities [Abstract]
Property, plant, and equipment	(2,788)	(2,693)
Regulatory assets and liabilities	(1,492)	(1,314)
Tax credit carryforwards	583	572
Pension and benefits	62	69
Federal net operating loss carryforward	30	71
State and local net operating loss carryforwards	42	49
Investments in equity method investees	(1)	0
Other	176	137
Deferred tax assets (liabilities)	(3,388)	(3,109)
Less: Valuation allowance	(5)	0
Long-term deferred income tax liabilities	(3,393)	(3,109)
Deferred income tax assets	1,209	1,202
Deferred income tax liabilities	$ (4,602)	$ (4,311)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Basic Earnings per Share
Net Income Attributable to DTE Energy Company	$ 1,404	$ 1,397	$ 1,083
Less: Allocation of earnings to net restricted stock awards	3	3	3
Net income available to common shareholders — basic	$ 1,401	$ 1,394	$ 1,080
Average number of common shares outstanding — basic (in shares)	207	206	195
Basic Earnings per Common Share (in dollars per share)	$ 6.78	$ 6.77	$ 5.53
Diluted Earnings per Share
Net Income Attributable to DTE Energy Company	$ 1,404	$ 1,397	$ 1,083
Less: Allocation of earnings to net restricted stock awards	3	3	3
Net income available to common shareholders — diluted	$ 1,401	$ 1,394	$ 1,080
Average number of common shares outstanding — basic (in shares)	207	206	195
Average dilutive equity units and performance share awards (in shares)	0	0	1
Average number of common shares outstanding — diluted (in shares)	207	206	196
Diluted Earnings per Common Share (in dollars per share)	$ 6.77	$ 6.76	$ 5.52

Fair Value (Assets and Liabilit

Fair Value (Assets and Liabilities Recorded at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivative assets
Derivative assets, gross	$ 694	$ 1,197
Derivative assets, netting	(447)	(791)
Derivative liabilities
Derivative liabilities, gross	(605)	(1,172)
Derivative liabilities, netting	430	863
DTE Electric
Assets
Nuclear decommissioning trusts	2,256	2,041
Current liabilities
Derivative liabilities
Derivative liabilities, gross	(441)	(847)
Noncurrent liabilities
Derivative liabilities
Derivative liabilities, gross	(164)	(325)
Natural Gas
Derivative assets
Derivative assets, gross	428	637
Derivative assets, netting	(285)	(416)
Derivative liabilities
Derivative liabilities, gross	(410)	(615)
Derivative liabilities, netting	272	429
Electricity
Derivative assets
Derivative assets, gross	187	421
Derivative assets, netting	(116)	(243)
Derivative liabilities
Derivative liabilities, gross	(150)	(388)
Derivative liabilities, netting	114	297
Environmental & Other
Derivative assets
Derivative assets, gross	58	139
Derivative assets, netting	(46)	(132)
Derivative liabilities
Derivative liabilities, gross	(44)	(150)
Derivative liabilities, netting	44	137
Cash equivalents | DTE Electric
Assets
Nuclear decommissioning trusts	26	34
Private equity and other | DTE Electric
Assets
Nuclear decommissioning trusts	349	312
Hedge Funds and Similar Investments | DTE Electric
Assets
Nuclear decommissioning trusts	228	184
Equity securities | DTE Electric
Assets
Nuclear decommissioning trusts	1,003	921
Fixed income securities | DTE Electric
Assets
Nuclear decommissioning trusts	650	590
Recurring
Assets
Cash equivalents	11	13
Derivative assets
Derivative assets, netting	(447)	(791)
Derivative assets, net	247	406
Total assets	2,622	2,562
Derivative liabilities
Derivative liabilities, netting	430	863
Total Liabilities	(175)	(309)
Net Assets (Liabilities) at end of period	2,447	2,253
Net Assets (Liabilities) at the end of the period, netting	(17)	72
Recurring | DTE Electric
Assets
Cash equivalents	8	11
Derivative assets
Total assets	2,318	2,091
Recurring | Current assets
Derivative assets
Derivative assets, netting	(326)	(613)
Total assets	173	310
Recurring | Current assets | DTE Electric
Derivative assets
Total assets	17	18
Recurring | Noncurrent assets
Derivative assets
Derivative assets, netting	(121)	(178)
Total assets	2,449	2,252
Recurring | Noncurrent assets | DTE Electric
Derivative assets
Total assets	2,301	2,073
Recurring | Current liabilities
Derivative liabilities
Derivative liabilities, netting	323	670
Total Liabilities	(118)	(177)
Recurring | Noncurrent liabilities
Derivative liabilities
Derivative liabilities, netting	107	193
Total Liabilities	(57)	(132)
Recurring | Restricted cash
Assets
Cash equivalents	8	11
Recurring | Restricted cash | DTE Electric
Assets
Cash equivalents	8	11
Recurring | Natural Gas
Derivative assets
Derivative assets, netting	(285)	(416)
Derivative assets, net	143	221
Derivative liabilities
Derivative liabilities, netting	272	429
Derivative liabilities, net	(138)	(186)
Recurring | Electricity
Derivative assets
Derivative assets, netting	(116)	(243)
Derivative assets, net	71	178
Derivative liabilities
Derivative liabilities, netting	114	297
Derivative liabilities, net	(36)	(91)
Recurring | Environmental & Other
Derivative assets
Derivative assets, netting	(46)	(132)
Derivative assets, net	12	7
Derivative liabilities
Derivative liabilities, netting	44	137
Derivative liabilities, net	0	(13)
Recurring | Other contracts
Derivative assets
Derivative assets, netting	0	0
Derivative assets, net	21	0
Derivative liabilities
Derivative liabilities, netting	0	0
Derivative liabilities, net	(1)	(19)
Recurring | Derivative assets — FTRs | DTE Electric
Derivative assets
Derivative assets, net	9	7
Recurring | Cash equivalents
Assets
Nuclear decommissioning trusts	26	34
Other investments	29	37
Recurring | Cash equivalents | DTE Electric
Assets
Nuclear decommissioning trusts	26	34
Other investments	19	11
Recurring | Private equity and other
Assets
Nuclear decommissioning trusts	349	312
Recurring | Private equity and other | DTE Electric
Assets
Nuclear decommissioning trusts	349	312
Recurring | Hedge Funds and Similar Investments
Assets
Nuclear decommissioning trusts	228	184
Recurring | Hedge Funds and Similar Investments | DTE Electric
Assets
Nuclear decommissioning trusts	228	184
Recurring | Equity securities
Assets
Nuclear decommissioning trusts	1,003	921
Other investments	72	58
Recurring | Equity securities | DTE Electric
Assets
Nuclear decommissioning trusts	1,003	921
Other investments	26	21
Recurring | Fixed income securities
Assets
Nuclear decommissioning trusts	650	590
Other investments	7	7
Recurring | Fixed income securities | DTE Electric
Assets
Nuclear decommissioning trusts	650	590
Recurring | Level 1
Assets
Cash equivalents	11	13
Derivative assets
Derivative assets, gross	310	241
Total assets	1,602	1,412
Derivative liabilities
Total Liabilities	(290)	(291)
Net Assets (Liabilities) at end of period	1,312	1,121
Recurring | Level 1 | DTE Electric
Assets
Cash equivalents	8	11
Derivative assets
Total assets	1,226	1,099
Recurring | Level 1 | Current assets
Derivative assets
Total assets	223	215
Recurring | Level 1 | Current assets | DTE Electric
Derivative assets
Total assets	8	11
Recurring | Level 1 | Noncurrent assets
Derivative assets
Total assets	1,379	1,197
Recurring | Level 1 | Noncurrent assets | DTE Electric
Derivative assets
Total assets	1,218	1,088
Recurring | Level 1 | Current liabilities
Derivative liabilities
Total Liabilities	(219)	(240)
Recurring | Level 1 | Noncurrent liabilities
Derivative liabilities
Total Liabilities	(71)	(51)
Recurring | Level 1 | Natural Gas
Derivative assets
Derivative assets, gross	242	241
Derivative liabilities
Derivative liabilities, gross	(217)	(291)
Recurring | Level 1 | Electricity
Derivative assets
Derivative assets, gross	67	0
Derivative liabilities
Derivative liabilities, gross	(71)	0
Recurring | Level 1 | Environmental & Other
Derivative assets
Derivative assets, gross	1	0
Derivative liabilities
Derivative liabilities, gross	(2)	0
Recurring | Level 1 | Other contracts
Derivative assets
Derivative assets, gross	0	0
Derivative liabilities
Derivative liabilities, gross	0	0
Recurring | Level 1 | Derivative assets — FTRs | DTE Electric
Derivative assets
Derivative assets, net	0	0
Recurring | Level 1 | Cash equivalents
Assets
Nuclear decommissioning trusts	26	34
Other investments	29	37
Recurring | Level 1 | Cash equivalents | DTE Electric
Assets
Nuclear decommissioning trusts	26	34
Other investments	19	11
Recurring | Level 1 | Private equity and other
Assets
Nuclear decommissioning trusts	16	0
Recurring | Level 1 | Private equity and other | DTE Electric
Assets
Nuclear decommissioning trusts	16	0
Recurring | Level 1 | Hedge Funds and Similar Investments
Assets
Nuclear decommissioning trusts	151	119
Recurring | Level 1 | Hedge Funds and Similar Investments | DTE Electric
Assets
Nuclear decommissioning trusts	151	119
Recurring | Level 1 | Equity securities
Assets
Nuclear decommissioning trusts	856	776
Other investments	72	58
Recurring | Level 1 | Equity securities | DTE Electric
Assets
Nuclear decommissioning trusts	856	776
Other investments	26	21
Recurring | Level 1 | Fixed income securities
Assets
Nuclear decommissioning trusts	124	127
Other investments	7	7
Recurring | Level 1 | Fixed income securities | DTE Electric
Assets
Nuclear decommissioning trusts	124	127
Recurring | Level 2
Assets
Cash equivalents	0	0
Derivative assets
Derivative assets, gross	218	606
Total assets	648	1,042
Derivative liabilities
Total Liabilities	(162)	(606)
Net Assets (Liabilities) at end of period	486	436
Recurring | Level 2 | DTE Electric
Assets
Cash equivalents	0	0
Derivative assets
Total assets	430	436
Recurring | Level 2 | Current assets
Derivative assets
Total assets	170	461
Recurring | Level 2 | Current assets | DTE Electric
Derivative assets
Total assets	0	0
Recurring | Level 2 | Noncurrent assets
Derivative assets
Total assets	478	581
Recurring | Level 2 | Noncurrent assets | DTE Electric
Derivative assets
Total assets	430	436
Recurring | Level 2 | Current liabilities
Derivative liabilities
Total Liabilities	(129)	(462)
Recurring | Level 2 | Noncurrent liabilities
Derivative liabilities
Total Liabilities	(33)	(144)
Recurring | Level 2 | Natural Gas
Derivative assets
Derivative assets, gross	81	217
Derivative liabilities
Derivative liabilities, gross	(70)	(167)
Recurring | Level 2 | Electricity
Derivative assets
Derivative assets, gross	69	258
Derivative liabilities
Derivative liabilities, gross	(52)	(272)
Recurring | Level 2 | Environmental & Other
Derivative assets
Derivative assets, gross	47	131
Derivative liabilities
Derivative liabilities, gross	(39)	(148)
Recurring | Level 2 | Other contracts
Derivative assets
Derivative assets, gross	21	0
Derivative liabilities
Derivative liabilities, gross	(1)	(19)
Recurring | Level 2 | Derivative assets — FTRs | DTE Electric
Derivative assets
Derivative assets, net	0	0
Recurring | Level 2 | Cash equivalents
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 2 | Cash equivalents | DTE Electric
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 2 | Private equity and other
Assets
Nuclear decommissioning trusts	0	0
Recurring | Level 2 | Private equity and other | DTE Electric
Assets
Nuclear decommissioning trusts	0	0
Recurring | Level 2 | Hedge Funds and Similar Investments
Assets
Nuclear decommissioning trusts	16	65
Recurring | Level 2 | Hedge Funds and Similar Investments | DTE Electric
Assets
Nuclear decommissioning trusts	16	65
Recurring | Level 2 | Equity securities
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 2 | Equity securities | DTE Electric
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 2 | Fixed income securities
Assets
Nuclear decommissioning trusts	414	371
Other investments	0	0
Recurring | Level 2 | Fixed income securities | DTE Electric
Assets
Nuclear decommissioning trusts	414	371
Recurring | Level 3
Assets
Cash equivalents	0	0
Derivative assets
Derivative assets, gross	166	350
Total assets	166	350
Derivative liabilities
Total Liabilities	(153)	(275)
Net Assets (Liabilities) at end of period	13	75
Recurring | Level 3 | DTE Electric
Assets
Cash equivalents	0	0
Derivative assets
Total assets	9	7
Recurring | Level 3 | Current assets
Derivative assets
Total assets	106	247
Recurring | Level 3 | Current assets | DTE Electric
Derivative assets
Total assets	9	7
Recurring | Level 3 | Noncurrent assets
Derivative assets
Total assets	60	103
Recurring | Level 3 | Noncurrent assets | DTE Electric
Derivative assets
Total assets	0	0
Recurring | Level 3 | Current liabilities
Derivative liabilities
Total Liabilities	(93)	(145)
Recurring | Level 3 | Noncurrent liabilities
Derivative liabilities
Total Liabilities	(60)	(130)
Recurring | Level 3 | Natural Gas
Derivative assets
Derivative assets, gross	105	179
Derivative liabilities
Derivative liabilities, gross	(123)	(157)
Recurring | Level 3 | Electricity
Derivative assets
Derivative assets, gross	51	163
Derivative liabilities
Derivative liabilities, gross	(27)	(116)
Recurring | Level 3 | Environmental & Other
Derivative assets
Derivative assets, gross	10	8
Derivative liabilities
Derivative liabilities, gross	(3)	(2)
Recurring | Level 3 | Other contracts
Derivative assets
Derivative assets, gross	0	0
Derivative liabilities
Derivative liabilities, gross	0	0
Recurring | Level 3 | Derivative assets — FTRs | DTE Electric
Derivative assets
Derivative assets, net	9	7
Recurring | Level 3 | Cash equivalents
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 3 | Cash equivalents | DTE Electric
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 3 | Private equity and other
Assets
Nuclear decommissioning trusts	0	0
Recurring | Level 3 | Private equity and other | DTE Electric
Assets
Nuclear decommissioning trusts	0	0
Recurring | Level 3 | Hedge Funds and Similar Investments
Assets
Nuclear decommissioning trusts	0	0
Recurring | Level 3 | Hedge Funds and Similar Investments | DTE Electric
Assets
Nuclear decommissioning trusts	0	0
Recurring | Level 3 | Equity securities
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 3 | Equity securities | DTE Electric
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 3 | Fixed income securities
Assets
Nuclear decommissioning trusts	0	0
Other investments	0	0
Recurring | Level 3 | Fixed income securities | DTE Electric
Assets
Nuclear decommissioning trusts	0	0
Recurring | Other
Derivative assets
Total assets	653	549
Derivative liabilities
Net Assets (Liabilities) at end of period	653	549
Recurring | Other | DTE Electric
Derivative assets
Total assets	653	549
Recurring | Other | Noncurrent assets
Derivative assets
Total assets	653	549
Recurring | Other | Noncurrent assets | DTE Electric
Derivative assets
Total assets	653	549
Recurring | Other | Private equity and other
Assets
Nuclear decommissioning trusts	333	312
Recurring | Other | Private equity and other | DTE Electric
Assets
Nuclear decommissioning trusts	333	312
Recurring | Other | Hedge Funds and Similar Investments
Assets
Nuclear decommissioning trusts	61	0
Recurring | Other | Hedge Funds and Similar Investments | DTE Electric
Assets
Nuclear decommissioning trusts	61	0
Recurring | Other | Equity securities
Assets
Nuclear decommissioning trusts	147	145
Recurring | Other | Equity securities | DTE Electric
Assets
Nuclear decommissioning trusts	147	145
Recurring | Other | Fixed income securities
Assets
Nuclear decommissioning trusts	112	92
Recurring | Other | Fixed income securities | DTE Electric
Assets
Nuclear decommissioning trusts	$ 112	$ 92

Fair Value (Details Textuals)

Fair Value (Details Textuals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Nuclear decommissioning trusts | Fixed Income Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities with no contractual maturity date	$ 112
Private Equity and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unfunded commitments related to investments classified as NAV assets	$ 120	$ 157
Minimum | Equity or debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, redemption notice period	7 days
Minimum | Private Equity and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments classified as NAV assets, general contractual durations	7 years
Maximum | Equity or debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, redemption notice period	65 days
Maximum | Private Equity and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments classified as NAV assets, general contractual durations	12 years

Fair Value (Reconciliation of L

Fair Value (Reconciliation of Level 3 Assets and Liabilities at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Purchases, issuances, and settlements:
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Non-utility operations, Fuel, purchased power, and gas — utility	Non-utility operations, Fuel, purchased power, and gas — utility
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Non-utility operations, Fuel, purchased power, and gas — utility	Non-utility operations, Fuel, purchased power, and gas — utility
Recurring
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Net Assets (Liabilities) as of January 1	$ 75	$ (277)
Transfers into Level 3 from Level 2	1	0
Transfers from Level 3 into Level 2	74	17
Total gains (losses)
Included in earnings	240	379
Recorded in Regulatory liabilities	21	9
Purchases, issuances, and settlements:
Settlements	(398)	(53)
Net Assets (Liabilities) as of December 31	13	75
Total gains (losses) included in Net Income attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	(88)	114
Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	9	7
Recurring | Natural Gas
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Net Assets (Liabilities) as of January 1	22	(255)
Transfers into Level 3 from Level 2	1	0
Transfers from Level 3 into Level 2	0	17
Total gains (losses)
Included in earnings	16	182
Recorded in Regulatory liabilities	0	0
Purchases, issuances, and settlements:
Settlements	(57)	78
Net Assets (Liabilities) as of December 31	(18)	22
Total gains (losses) included in Net Income attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	(47)	85
Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	0	0
Recurring | Electricity
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Net Assets (Liabilities) as of January 1	47	(33)
Transfers into Level 3 from Level 2	0	0
Transfers from Level 3 into Level 2	74	0
Total gains (losses)
Included in earnings	225	198
Recorded in Regulatory liabilities	0	0
Purchases, issuances, and settlements:
Settlements	(322)	(118)
Net Assets (Liabilities) as of December 31	24	47
Total gains (losses) included in Net Income attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	118	151
Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	0	0
Recurring | Other
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Net Assets (Liabilities) as of January 1	6	11
Transfers into Level 3 from Level 2	0	0
Transfers from Level 3 into Level 2	0	0
Total gains (losses)
Included in earnings	(1)	(1)
Recorded in Regulatory liabilities	21	9
Purchases, issuances, and settlements:
Settlements	(19)	(13)
Net Assets (Liabilities) as of December 31	7	6
Total gains (losses) included in Net Income attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	(159)	(122)
Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	9	7
Recurring | DTE Electric
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Net Assets (Liabilities) as of January 1	7	11
Total gains (losses)
Recorded in Regulatory liabilities	21	9
Purchases, issuances, and settlements:
Settlements	(19)	(13)
Net Assets (Liabilities) as of December 31	9	7
Total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31	$ 9	$ 7

Fair Value (Unobservable Inputs

Fair Value (Unobservable Inputs related to Level 3 Assets and Liabilities) (Details) $ in Millions	Dec. 31, 2024 USD ($) $ / MWh $ / MMBTU	Dec. 31, 2023 USD ($) $ / MMBTU $ / MWh
Unobservable Input Valuation Techniques [Line Items]
Derivative Assets	$ 694	$ 1,197
Derivative Liabilities	(605)	(1,172)
Natural Gas
Unobservable Input Valuation Techniques [Line Items]
Derivative Assets	428	637
Derivative Liabilities	(410)	(615)
Electricity
Unobservable Input Valuation Techniques [Line Items]
Derivative Assets	187	421
Derivative Liabilities	$ (150)	$ (388)
Level 3 | Discounted Cash Flow | Forward basis price | Natural Gas | Minimum
Unobservable Input Valuation Techniques [Line Items]
Forward basis price | $ / MMBTU	(1.24)	(1.57)
Level 3 | Discounted Cash Flow | Forward basis price | Natural Gas | Maximum
Unobservable Input Valuation Techniques [Line Items]
Forward basis price | $ / MMBTU	9.96	6.27
Level 3 | Discounted Cash Flow | Forward basis price | Natural Gas | Weighted Average
Unobservable Input Valuation Techniques [Line Items]
Forward basis price | $ / MMBTU	(0.05)	(0.08)
Level 3 | Discounted Cash Flow | Forward basis price | Electricity | Minimum
Unobservable Input Valuation Techniques [Line Items]
Forward basis price | $ / MWh	(16.34)	(18.49)
Level 3 | Discounted Cash Flow | Forward basis price | Electricity | Maximum
Unobservable Input Valuation Techniques [Line Items]
Forward basis price | $ / MWh	17.28	15.47
Level 3 | Discounted Cash Flow | Forward basis price | Electricity | Weighted Average
Unobservable Input Valuation Techniques [Line Items]
Forward basis price | $ / MWh	(2.74)	(3.99)
Recurring | Level 3
Unobservable Input Valuation Techniques [Line Items]
Derivative Assets	$ 166	$ 350
Recurring | Level 3 | Natural Gas
Unobservable Input Valuation Techniques [Line Items]
Derivative Assets	105	179
Derivative Liabilities	(123)	(157)
Recurring | Level 3 | Electricity
Unobservable Input Valuation Techniques [Line Items]
Derivative Assets	51	163
Derivative Liabilities	$ (27)	$ (116)

Fair Value (Fair Value of Finan

Fair Value (Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	$ 884	$ 175
Short-term borrowings	1,067	1,283
Notes payable	37	34
Long-term debt	21,963	19,546
Carrying Amount | DTE Electric
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	666	385
Notes payable	35	33
Long-term debt	11,881	11,043
Carrying Amount | DTE Electric | Other
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	2	19
Carrying Amount | DTE Electric | Affiliates
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	42	0
Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	0	0
Short-term borrowings	0	0
Notes payable	0	0
Long-term debt	725	807
Fair Value | Level 1 | DTE Electric
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	0	0
Notes payable	0	0
Long-term debt	0	0
Fair Value | Level 1 | DTE Electric | Other
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	0	0
Fair Value | Level 1 | DTE Electric | Affiliates
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	0	0
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	0	0
Short-term borrowings	1,067	1,283
Notes payable	0	0
Long-term debt	18,283	16,178
Fair Value | Level 2 | DTE Electric
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	666	385
Notes payable	0	0
Long-term debt	10,449	9,999
Fair Value | Level 2 | DTE Electric | Other
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	0	0
Fair Value | Level 2 | DTE Electric | Affiliates
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	0	0
Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	904	181
Short-term borrowings	0	0
Notes payable	37	34
Long-term debt	1,128	1,202
Fair Value | Level 3 | DTE Electric
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	0	0
Notes payable	35	33
Long-term debt	127	126
Fair Value | Level 3 | DTE Electric | Other
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	2	19
Fair Value | Level 3 | DTE Electric | Affiliates
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable	$ 42	$ 0

Fair Value (Fair Value of Nucle

Fair Value (Fair Value of Nuclear Decommissioning Trust Fund Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Nuclear decommissioning trust funds	$ 2,256	$ 2,041
DTE Electric
Debt Securities, Available-for-sale [Line Items]
Nuclear decommissioning trust funds	2,256	2,041
DTE Electric | Nuclear decommissioning trusts
Debt Securities, Available-for-sale [Line Items]
Nuclear decommissioning trust funds	2,256	2,041
DTE Electric | Nuclear decommissioning trusts | Fermi 2
Debt Securities, Available-for-sale [Line Items]
Nuclear decommissioning trust funds	2,234	2,026
DTE Electric | Nuclear decommissioning trusts | Fermi 1
Debt Securities, Available-for-sale [Line Items]
Nuclear decommissioning trust funds	3	3
DTE Electric | Nuclear decommissioning trusts | Low-level radioactive waste
Debt Securities, Available-for-sale [Line Items]
Nuclear decommissioning trust funds	$ 19	$ 12

Fair Value (Gains and Losses an

Fair Value (Gains and Losses and Proceeds from the Sale of Securities by the Nuclear Decommissioning Trust Funds) (Details) - DTE Electric - Nuclear decommissioning trusts - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Realized gains	$ 47	$ 36	$ 71
Realized losses	(27)	(42)	(53)
Proceeds from sale of securities	$ 555	$ 681	$ 879

Fair Value (Fair Value and Unre

Fair Value (Fair Value and Unrealized Gains and Losses for the Nuclear Decommissioning Trust Funds) (Details) - DTE Electric - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 2,256	$ 2,041
Unrealized Gains	687	545
Unrealized Losses	(58)	(58)
Cash equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	26	34
Private Equity and Other
Debt Securities, Available-for-sale [Line Items]
Fair Value	349	312
Unrealized Gains	106	74
Unrealized Losses	(8)	(8)
Hedge Funds and Similar Investments
Debt Securities, Available-for-sale [Line Items]
Fair Value	228	184
Unrealized Gains	7	4
Unrealized Losses	(5)	(9)
Equity securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	1,003	921
Unrealized Gains	558	459
Unrealized Losses	(16)	(11)
Fixed Income Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	650	590
Unrealized Gains	16	8
Unrealized Losses	$ (29)	$ (30)

Fair Value (Fair Value of Fixed

Fair Value (Fair Value of Fixed Income Securities Held in Nuclear Decommissioning Trust Funds (Details) - Nuclear decommissioning trusts - Fixed Income Securities $ in Millions	Dec. 31, 2024 USD ($)
Debt Securities, Available-for-sale [Line Items]
Due within one year	$ 18
Due after one through five years	105
Due after five through ten years	107
Due after ten years	308
Fixed income securities total	$ 538

Financial and Other Derivativ_3

Financial and Other Derivative Instruments (Fair Value of Derivative Instruments) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 694	$ 1,197
Derivative Liabilities	$ (605)	$ (1,172)
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Derivative Asset, Current, Derivative Asset, Noncurrent	Derivative Asset, Current, Derivative Asset, Noncurrent
Current derivative asset
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 488	$ 910
Noncurrent derivative asset
Derivatives, Fair Value [Line Items]
Derivative Assets	206	287
Current derivative liability
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(441)	(847)
Noncurrent derivative liability
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(164)	(325)
Interest rate contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	20	0
Derivative Liabilities	0	(16)
Foreign currency exchange contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	1	0
Derivative Liabilities	(1)	(3)
Natural gas
Derivatives, Fair Value [Line Items]
Derivative Assets	428	637
Derivative Liabilities	(410)	(615)
Electricity
Derivatives, Fair Value [Line Items]
Derivative Assets	187	421
Derivative Liabilities	(150)	(388)
Environmental & Other
Derivatives, Fair Value [Line Items]
Derivative Assets	58	139
Derivative Liabilities	(44)	(150)
Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative Assets	20	0
Derivative Liabilities	(1)	(18)
Derivatives designated as hedging instruments | Interest rate contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	20	0
Derivative Liabilities	0	(16)
Derivatives designated as hedging instruments | Foreign currency exchange contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Derivative Liabilities	(1)	(2)
Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative Assets	674	1,197
Derivative Liabilities	(604)	(1,154)
Derivatives not designated as hedging instruments | Foreign currency exchange contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	1	0
Derivative Liabilities	0	(1)
Derivatives not designated as hedging instruments | Natural gas
Derivatives, Fair Value [Line Items]
Derivative Assets	428	637
Derivative Liabilities	(410)	(615)
Derivatives not designated as hedging instruments | Electricity
Derivatives, Fair Value [Line Items]
Derivative Assets	187	421
Derivative Liabilities	(150)	(388)
Derivatives not designated as hedging instruments | Environmental & Other
Derivatives, Fair Value [Line Items]
Derivative Assets	58	139
Derivative Liabilities	(44)	(150)
Derivatives not designated as hedging instruments | Derivative assets — FTRs | Other current assets | DTE Electric
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 9	$ 7

Financial and Other Derivativ_4

Financial and Other Derivative Instruments (Details Textuals) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Letters of credit that could be used to offset net derivative liabilities	$ 1	$ 3
Letters of credit that could be used to offset net derivative assets	0	$ 10
Additional collateral, aggregate fair value	360
Derivative net liability position aggregate fair value	467
Collateral already posted fair value	0
Derivative, net asset position, fair value	402
Remaining amount of offsets to derivative net liability positions for hard and soft trigger provisions	$ 65

Financial and Other Derivativ_5

Financial and Other Derivative Instruments (Net Cash Collateral Offsetting Arrangements) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash collateral netted against Derivative assets	$ (17)	$ 0
Cash collateral netted against Derivative liabilities	0	72
Cash collateral recorded in Accounts receivable	29	57
Cash collateral recorded in Accounts payable	(5)	(3)
Total net cash collateral posted (received)	$ 7	$ 126

Financial and Other Derivativ_6

Financial and Other Derivative Instruments (Netting Offsets of Derivative Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivative assets
Gross Amounts of Recognized Assets (Liabilities)	$ 694	$ 1,197
Gross Amounts Offset in the Consolidated Statements of Financial Position	(447)	(791)
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	247	406
Derivative liabilities
Gross Amounts of Recognized Assets (Liabilities)	(605)	(1,172)
Gross Amounts Offset in the Consolidated Statements of Financial Position	430	863
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	(175)	(309)
Natural gas
Derivative assets
Gross Amounts of Recognized Assets (Liabilities)	428	637
Gross Amounts Offset in the Consolidated Statements of Financial Position	(285)	(416)
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	143	221
Derivative liabilities
Gross Amounts of Recognized Assets (Liabilities)	(410)	(615)
Gross Amounts Offset in the Consolidated Statements of Financial Position	272	429
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	(138)	(186)
Electricity
Derivative assets
Gross Amounts of Recognized Assets (Liabilities)	187	421
Gross Amounts Offset in the Consolidated Statements of Financial Position	(116)	(243)
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	71	178
Derivative liabilities
Gross Amounts of Recognized Assets (Liabilities)	(150)	(388)
Gross Amounts Offset in the Consolidated Statements of Financial Position	114	297
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	(36)	(91)
Environmental & Other
Derivative assets
Gross Amounts of Recognized Assets (Liabilities)	58	139
Gross Amounts Offset in the Consolidated Statements of Financial Position	(46)	(132)
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	12	7
Derivative liabilities
Gross Amounts of Recognized Assets (Liabilities)	(44)	(150)
Gross Amounts Offset in the Consolidated Statements of Financial Position	44	137
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	0	(13)
Interest rate contracts
Derivative assets
Gross Amounts of Recognized Assets (Liabilities)	20	0
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	20	0
Derivative liabilities
Gross Amounts of Recognized Assets (Liabilities)	0	(16)
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	0	(16)
Foreign currency exchange contracts
Derivative assets
Gross Amounts of Recognized Assets (Liabilities)	1	0
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	1	0
Derivative liabilities
Gross Amounts of Recognized Assets (Liabilities)	(1)	(3)
Gross Amounts Offset in the Consolidated Statements of Financial Position	0	0
Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position	$ (1)	$ (3)

Financial and Other Derivativ_7

Financial and Other Derivative Instruments (Netting Offsets Reconciliation to Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivative Assets
Derivative Assets	$ 694	$ 1,197
Collateral adjustment	(17)	0
Derivative asset, current	162	297
Derivative assets, noncurrent	85	109
Derivative Liabilities
Derivative Liabilities	(605)	(1,172)
Collateral adjustment	0	72
Derivative liabilities, current	(118)	(177)
Derivative liabilities, noncurrent	(57)	(132)
Current derivative asset
Derivative Assets
Derivative Assets	488	910
Counterparty netting	(323)	(613)
Collateral adjustment	(3)	0
Noncurrent derivative asset
Derivative Assets
Derivative Assets	206	287
Counterparty netting	(107)	(178)
Collateral adjustment	(14)	0
Current derivative liability
Derivative Liabilities
Derivative Liabilities	(441)	(847)
Counterparty netting	323	613
Collateral adjustment	0	57
Noncurrent derivative liability
Derivative Liabilities
Derivative Liabilities	(164)	(325)
Counterparty netting	107	178
Collateral adjustment	$ 0	$ 15

Financial and Other Derivativ_8

Financial and Other Derivative Instruments (Effect of Derivatives not Designated as Hedging Instruments on the Consolidated Statement of Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives	$ 347	$ 383	$ (106)
Natural gas | Operating Revenues — Non-utility operations
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives	(169)	153	(235)
Natural gas | Fuel, purchased power, gas, and other — non-utility
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives	233	122	(108)
Electricity | Operating Revenues — Non-utility operations
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives	266	105	221
Environmental & Other | Operating Revenues — Non-utility operations
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives	14	5	13
Foreign currency exchange contracts | Operating Revenues — Non-utility operations
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives	$ 3	$ (2)	$ 3

Financial and Other Derivativ_9

Financial and Other Derivative Instruments (Cumulative Gross Volume of Derivative Contracts Outstanding) (Details) - 12 months ended Dec. 31, 2024	CAD ($) MWh MMBTU T	USD ($)
Natural gas (MMBtu)
Derivative [Line Items]
Notional amount, energy measure | MMBTU	2,061,711,943
Electricity (MWh)
Derivative [Line Items]
Notional amount, energy measure	39,109,082
Foreign currency exchange ($ CAD)
Derivative [Line Items]
Notional amount, monetary measure | $	$ 74,608,748
FTR (MWh)
Derivative [Line Items]
Notional amount, energy measure	65,874
Renewable Energy Certificates (MWh)
Derivative [Line Items]
Notional amount, energy measure	10,569,260
Carbon emissions (Metric Ton)
Derivative [Line Items]
Notional amount, mass measure | T	210,079
Interest rate contracts ($ USD)
Derivative [Line Items]
Notional amount, monetary measure | $		$ 700,000,000

Long-Term Debt (Long Term Debt

Long-Term Debt (Long Term Debt Outstanding and Interest Rates) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term debt, total	$ 22,138
Mortgage Bonds, Notes and Other
Debt Instrument [Line Items]
Long-term debt, gross	20,515	$ 18,020
Unamortized debt discount	(28)	(26)
Unamortized debt issuance costs	(114)	(100)
Long-term debt due within one year	(1,220)	(2,075)
Long-term debt (net of current portion)	$ 19,153	15,819
Unsecured
Debt Instrument [Line Items]
Interest rate	4.20%
Long-term debt, gross	$ 6,380	5,105
Securitization Bonds
Debt Instrument [Line Items]
Unamortized debt issuance costs	(7)	(8)
Long-term debt due within one year	(71)	(64)
Long-term debt (net of current portion)	$ 635	705
Junior Subordinated Debentures
Debt Instrument [Line Items]
Interest rate	4.80%
Long-term debt, gross	$ 910	910
Unamortized debt issuance costs	(26)	(27)
Long-term debt, total	884	883
DTE Electric
Debt Instrument [Line Items]
Long-term debt due within one year	(350)	(100)
Long-term debt, total	11,983
DTE Electric | Mortgage Bonds, Notes and Other
Debt Instrument [Line Items]
Unamortized debt discount	(22)	(23)
Unamortized debt issuance costs	(73)	(73)
Long-term debt (net of current portion)	$ 10,825	10,174
DTE Electric | Principally Secured
Debt Instrument [Line Items]
Interest rate	3.90%
Long-term debt, gross	$ 11,270	10,370
DTE Electric | Securitization Bonds
Debt Instrument [Line Items]
Interest rate	5.40%
Long-term debt, gross	$ 713	777
Unamortized debt issuance costs	(7)	(8)
Long-term debt due within one year	(71)	(64)
Long-term debt (net of current portion)	$ 635	705
DTE Gas | Principally Secured
Debt Instrument [Line Items]
Interest rate	4.30%
Long-term debt, gross	$ 2,865	$ 2,545

Long-Term Debt (Debt Issuances)

Long-Term Debt (Debt Issuances) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Nov. 30, 2024	Oct. 31, 2024	Aug. 31, 2024	May 31, 2024	Feb. 29, 2024
Debt Instrument [Line Items]
Amount	$ 4,570
Senior Notes | February 2024 5.10% Senior Notes Maturing In 2029
Debt Instrument [Line Items]
Interest Rate						5.10%
Amount						$ 1,200
Senior Notes | May 2024 5.85% Senior Notes Maturing In 2034
Debt Instrument [Line Items]
Interest Rate					5.85%
Amount					$ 850
Senior Notes | August 2024 4.95% Senior Notes Maturing in 2027
Debt Instrument [Line Items]
Interest Rate				4.95%
Amount				$ 1,200
Senior Notes | Series C 2.53% Senior Notes Due October 1, 2024
Debt Instrument [Line Items]
Interest Rate	2.53%
Amount	$ 675
Senior Notes | Series F 4.22% Senior Notes Due November 1, 2024
Debt Instrument [Line Items]
Interest Rate	4.22%	4.22%
Amount	$ 1,300
DTE Electric | Mortgage Bonds | February 2024 4.85% Mortgage Bonds Maturing In 2026
Debt Instrument [Line Items]
Interest Rate						4.85%
Amount						$ 500
DTE Electric | Mortgage Bonds | February 2024 5.20% Mortgage Bonds Maturing In 2034
Debt Instrument [Line Items]
Interest Rate						5.20%
Amount						$ 500
DTE Gas | Mortgage Bonds | October 2024 4.87% First Mortgage Bonds Maturing In 2034
Debt Instrument [Line Items]
Interest Rate			4.87%
Amount			$ 160
DTE Gas | Mortgage Bonds | October 2024 5.43% First Mortgage Bonds Maturing In 2054
Debt Instrument [Line Items]
Interest Rate			5.43%
Amount			$ 160

Long-Term Debt (Debt Redemption

Long-Term Debt (Debt Redemptions) (Details) - USD ($) $ in Millions	1 Months Ended						12 Months Ended
	Dec. 31, 2024	Nov. 30, 2024	Oct. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument, Redemption [Line Items]
Amount							$ 2,139	$ 1,616	$ 1,587
Senior Notes | Senior Notes 2.53% Maturing In 2024
Debt Instrument, Redemption [Line Items]
Interest Rate			2.53%
Amount			$ 675
Senior Notes | Series F 4.22% Senior Notes Due November 1, 2024
Debt Instrument, Redemption [Line Items]
Interest Rate	4.22%	4.22%					4.22%
Amount		$ 1,300
DTE Electric
Debt Instrument, Redemption [Line Items]
Amount							$ 164	$ 541	$ 337
DTE Electric | Mortgage Bonds | 2013 Series B Mortgage Bonds
Debt Instrument, Redemption [Line Items]
Interest Rate						3.65%
Amount						$ 100
DTE Electric | Securitization Bonds | 2.64% Securitization Bonds
Debt Instrument, Redemption [Line Items]
Interest Rate					2.64%
Amount					$ 19
DTE Electric | Securitization Bonds | Securitization Bonds 5.97% Due 2024
Debt Instrument, Redemption [Line Items]
Interest Rate				5.97%
Amount				$ 24
DTE Electric | Securitization Bonds | 2.64% Securitization Bonds
Debt Instrument, Redemption [Line Items]
Interest Rate	2.64%						2.64%
Amount	$ 21

Long-Term Debt (Scheduled Debt

Long-Term Debt (Scheduled Debt Maturities) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Maturities of Long-term Debt [Abstract]
2025	$ 1,291
2026	1,351
2027	1,430
2028	1,737
2029	1,962
2030 and Thereafter	14,367
Long-term debt, total	22,138
DTE Electric
Maturities of Long-term Debt [Abstract]
2025	421
2026	751
2027	39
2028	617
2029	103
2030 and Thereafter	10,052
Long-term debt, total	$ 11,983

Long-Term Debt (Scheduled Inter

Long-Term Debt (Scheduled Interest Payments) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
2025	$ 905
2026	888
2027	806
2028	742
2029	664
2030 and Thereafter	8,467
Total	12,472
DTE Electric
Debt Instrument [Line Items]
2025	477
2026	466
2027	434
2028	426
2029	418
2030 and Thereafter	4,874
Total	$ 7,095

Preferred and Preference Secu_3

Preferred and Preference Securities (Details)	Dec. 31, 2024 $ / shares shares
DTE Electric
Preferred and Preferenced Securities [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares	$ 100
Preferred stock, shares authorized (in shares) | shares	6,747,484
Preference stock, par value (in dollars per share) | $ / shares	$ 1
Preference stock shares authorized (in shares) | shares	30,000,000
DTE Gas
Preferred and Preferenced Securities [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares	$ 1
Preferred stock, shares authorized (in shares) | shares	7,000,000
Preference stock, par value (in dollars per share) | $ / shares	$ 1
Preference stock shares authorized (in shares) | shares	4,000,000
DTE Energy
Preferred and Preferenced Securities [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares	$ 0
Preferred stock, shares authorized (in shares) | shares	5,000,000

Short-Term Credit Arrangement_3

Short-Term Credit Arrangements and Borrowings (Details Textuals)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 3,200,000,000
Weighted average interest rate	4.70%	5.60%
Dividend restriction	$ 2,500,000,000
Retained earnings	4,946,000,000	$ 4,404,000,000
Effective limitations	0
DTE Electric
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 925,000,000
Total funded debt to capitalization ratio	0.52
Weighted average interest rate	4.70%	5.60%
Retained earnings	$ 3,159,000,000	$ 2,863,000,000
DTE Electric | Maximum
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.65
DTE Gas
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 300,000,000
Total funded debt to capitalization ratio	0.49
DTE Gas | Maximum
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.65
DTE Energy
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 1,975,000,000
Total funded debt to capitalization ratio	0.65
DTE Energy | Maximum
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.70
DTE Energy | Demand financing agreement
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 200,000,000
Amount outstanding	49,000,000	$ 152,000,000
DTE Energy | DTE Energy Revolver | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 500,000,000

Short-Term Credit Arrangement_4

Short-Term Credit Arrangements and Borrowings (Schedule of Borrowings) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 3,200
Amounts outstanding	1,308
Net availability	1,892
DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	925
Amounts outstanding	790
Net availability	135
DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	300
Amounts outstanding	9
Net availability	291
DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	1,975
Amounts outstanding	509
Net availability	1,466
Revolving credit facility | Unsecured revolving credit facility, expiring October 2029
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	2,600
Revolving credit facility | Unsecured revolving credit facility, expiring October 2029 | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	800
Revolving credit facility | Unsecured revolving credit facility, expiring October 2029 | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	300
Revolving credit facility | Unsecured revolving credit facility, expiring October 2029 | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	1,500
Letters of credit
Line Of Credit Facility [Line Items]
Amounts outstanding	241
Letters of credit | DTE Electric
Line Of Credit Facility [Line Items]
Amounts outstanding	124
Letters of credit | DTE Gas
Line Of Credit Facility [Line Items]
Amounts outstanding	0
Letters of credit | DTE Energy
Line Of Credit Facility [Line Items]
Amounts outstanding	117
Letters of credit | Unsecured letter of credit facility, expiring June 2025
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	175
Letters of credit | Unsecured letter of credit facility, expiring June 2025 | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility, expiring June 2025 | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility, expiring June 2025 | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	175
Letters of credit | Unsecured letter of credit facility, expiring February 2025
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	150
Letters of credit | Unsecured letter of credit facility, expiring February 2025 | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility, expiring February 2025 | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility, expiring February 2025 | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	150
Letters of credit | Unsecured letter of credit facilities, expiring June 2026
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	100
Letters of credit | Unsecured letter of credit facilities, expiring June 2026 | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facilities, expiring June 2026 | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facilities, expiring June 2026 | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	100
Letters of credit | Unsecured letter of credit facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	50
Letters of credit | Unsecured letter of credit facility | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	50
Letters of credit | Unsecured letter of credit facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	125
Letters of credit | Unsecured letter of credit facility | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	125
Letters of credit | Unsecured letter of credit facility | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Commercial paper issuances
Line Of Credit Facility [Line Items]
Amounts outstanding	1,067
Commercial paper issuances | DTE Electric
Line Of Credit Facility [Line Items]
Amounts outstanding	666
Commercial paper issuances | DTE Gas
Line Of Credit Facility [Line Items]
Amounts outstanding	9
Commercial paper issuances | DTE Energy
Line Of Credit Facility [Line Items]
Amounts outstanding	$ 392

Leases (Details Textuals)

Leases (Details Textuals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Depreciation expense associated with property under operating leases	$ 9	$ 8	$ 11
Minimum
Lessee, Lease, Description [Line Items]
Lessee, lease terms	1 year
Lessor, operating lease term	9 years
Maximum
Lessee, Lease, Description [Line Items]
Lessee, lease terms	52 years
Lessor, operating lease term	24 years
DTE Electric | Minimum
Lessee, Lease, Description [Line Items]
Lessee, lease terms	1 year
DTE Electric | Maximum
Lessee, Lease, Description [Line Items]
Lessee, lease terms	52 years

Leases (Components of Lease Cos

Leases (Components of Lease Cost) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 26	$ 22	$ 18
Finance lease cost:
Amortization of right-of-use assets	4	7	7
Interest of lease liabilities	1	0	1
Total finance lease cost	5	7	8
Variable lease cost	17	13	9
Short-term lease cost	18	12	19
Total lease cost	66	54	54
DTE Electric
Lessee, Lease, Description [Line Items]
Operating lease cost	22	17	12
Finance lease cost:
Amortization of right-of-use assets	3	6	6
Interest of lease liabilities	1	0	0
Total finance lease cost	4	6	6
Variable lease cost	0	0	0
Short-term lease cost	10	4	10
Total lease cost	$ 36	$ 27	$ 28

Leases (Other Information) (Det

Leases (Other Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash paid for amounts included in the measurement of these liabilities:
Operating cash flows for finance leases	$ 9	$ 9	$ 8
Operating cash flows for operating leases	19	19	17
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	75	61	5
Finance leases	$ 16	$ 5	$ 3
Weighted Average Remaining Lease Term (Years)
Operating leases	23 years 3 months 18 days	18 years 8 months 12 days	12 years 9 months 18 days
Finance leases	7 years 4 months 24 days	8 years 10 months 24 days	8 years 2 months 12 days
Weighted Average Discount Rate
Operating leases	4.80%	4.40%	3.70%
Finance leases	4.60%	4%	2.40%
DTE Electric
Cash paid for amounts included in the measurement of these liabilities:
Operating cash flows for finance leases	$ 7	$ 7	$ 7
Operating cash flows for operating leases	15	15	12
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	74	61	2
Finance leases	$ 14	$ 5	$ 1
Weighted Average Remaining Lease Term (Years)
Operating leases	24 years 9 months 18 days	19 years 9 months 18 days	11 years 1 month 6 days
Finance leases	4 years	4 years 6 months	1 year 1 month 6 days
Weighted Average Discount Rate
Operating leases	4.90%	4.50%	3.40%
Finance leases	5.80%	5.40%	1%

Leases (Future Minimum Lease Pa

Leases (Future Minimum Lease Payments) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Operating Leases
2025	$ 22
2026	22
2027	22
2028	20
2029	16
2030 and thereafter	264
Total future minimum lease payments	366
Imputed interest	(178)
Lease liabilities	188
Finance Leases
2025	5
2026	4
2027	4
2028	4
2029	1
2030 and thereafter	7
Total future minimum lease payments	25
Imputed interest	(2)
Lease liabilities	23
DTE Electric
Operating Leases
2025	18
2026	19
2027	19
2028	18
2029	13
2030 and thereafter	241
Total future minimum lease payments	328
Imputed interest	(168)
Lease liabilities	160
Finance Leases
2025	4
2026	3
2027	3
2028	3
2029	0
2030 and thereafter	0
Total future minimum lease payments	13
Imputed interest	(1)
Lease liabilities	$ 12

Leases (Finance Leases Reported

Leases (Finance Leases Reported on Consolidated Statements of Financial Position) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Lessee, Lease, Description [Line Items]
Right-of-use assets, within Property, plant, and equipment, net	$ 23	$ 18
Current lease liabilities, within Current portion of long-term debt	5	3
Long-term lease liabilities	$ 18	$ 13
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Long-Term Debt and Lease Obligation, Current	Long-Term Debt and Lease Obligation, Current
DTE Electric
Lessee, Lease, Description [Line Items]
Right-of-use assets, within Property, plant, and equipment, net	$ 12	$ 6
Current lease liabilities, within Current portion of long-term debt	4	2
Long-term lease liabilities	$ 8	$ 4
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Long-Term Debt and Lease Obligation, Current	Long-Term Debt and Lease Obligation, Current

Leases (Lease Income Associated

Leases (Lease Income Associated with Operating Leases) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Fixed payments	$ 15	$ 15	$ 15
Variable payments	45	44	67
Total lease income under operating leases	$ 60	$ 59	$ 82

Leases (Minimum Future Rental R

Leases (Minimum Future Rental Revenues under Operating Leases) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Leases [Abstract]
2025	$ 14
2026	11
2027	10
2028	6
2029	6
2030 and thereafter	29
Total minimum future rental revenues under operating leases	$ 76

Leases (Property under Operatin

Leases (Property under Operating Leases) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Gross property under operating leases	$ 227	$ 228
Accumulated amortization of property under operating leases	$ 118	$ 118

Commitments and Contingencies_2

Commitments and Contingencies (Details Textuals)	1 Months Ended	12 Months Ended
	Jun. 30, 2022 USD ($)	Dec. 31, 2024 USD ($) employee site	Dec. 31, 2023 USD ($)
Loss Contingencies [Line Items]
Asset retirement obligations		$ 4,031,000,000	$ 3,556,000,000
Capital expenditures estimated for next year		$ 4,900,000,000
Labor force concentration risk | Workforce subject to collective bargaining arrangements
Loss Contingencies [Line Items]
Approximate number of employees | employee		4,800
Percentage of total employees		51%
Labor force concentration risk | Workforce subject to collective bargaining arrangements expiring within one year
Loss Contingencies [Line Items]
Percentage of total employees		8%
Reduced emissions fuel guarantees
Loss Contingencies [Line Items]
Number of days after expiration of statutes of limitations		90 days
Maximum potential liability		$ 216,000,000
Other guarantees
Loss Contingencies [Line Items]
Maximum potential liability		69,000,000
Performance surety bonds
Loss Contingencies [Line Items]
Performance bonds outstanding		368,000,000
Performance surety bonds | Energy Trading segment
Loss Contingencies [Line Items]
Performance bonds outstanding		$ 130,000,000
Performance surety bonds | Energy Trading segment | Minimum
Loss Contingencies [Line Items]
Performance bonds term		1 year
Performance surety bonds | Energy Trading segment | Maximum
Loss Contingencies [Line Items]
Performance bonds term		3 years
DTE Electric
Loss Contingencies [Line Items]
Environmental capital expenditures		$ 2,400,000,000
Estimated capital expenditures		$ 0
Number of former MGP sites | site		3
Accrued for remediation related to the sites		$ 10,000,000	9,000,000
Asset retirement obligations		3,791,000,000	3,326,000,000
Capital expenditures estimated for next year		3,700,000,000
DTE Electric | Ludington Plant Contract Dispute | Pending Litigation
Loss Contingencies [Line Items]
Damages sought, percentage liable	49%
DTE Electric | Minimum | Ludington Plant Contract Dispute | Pending Litigation
Loss Contingencies [Line Items]
Estimated impact of contingencies		350,000,000
DTE Electric | Maximum | Ludington Plant Contract Dispute | Pending Litigation
Loss Contingencies [Line Items]
Estimated impact of contingencies		$ 400,000,000
DTE Electric | Labor force concentration risk | Workforce subject to collective bargaining arrangements
Loss Contingencies [Line Items]
Approximate number of employees | employee		2,550
Percentage of total employees		59%
DTE Electric | Labor force concentration risk | Workforce subject to collective bargaining arrangements expiring within one year
Loss Contingencies [Line Items]
Percentage of total employees		1%
DTE Electric | Performance surety bonds
Loss Contingencies [Line Items]
Performance bonds outstanding		$ 193,000,000
DTE Gas
Loss Contingencies [Line Items]
Number of former MGP sites | site		14
Accrued for remediation related to the sites		$ 26,000,000	$ 26,000,000
Amortization period for MGP costs (in years)		10 years
DTE Gas | Cleanup completed and site closed
Loss Contingencies [Line Items]
Number of former MGP sites | site		8
DTE Gas | Partial closure completed
Loss Contingencies [Line Items]
Number of former MGP sites | site		4
Toshiba America Energy Systems and Toshiba Corporation | DTE Electric and Consumers Energy Company | Ludington Plant Contract Dispute | Pending Litigation
Loss Contingencies [Line Items]
Damages sought	$ 15,000,000
CCR and ELG Rules | DTE Electric
Loss Contingencies [Line Items]
Estimated impact of contingencies		$ 509,000,000
Legacy CCR Surface Impoundments And CCR Management Units | DTE Electric
Loss Contingencies [Line Items]
Asset retirement obligations		$ 289,000,000

Commitments and Contingencies_3

Commitments and Contingencies (Purchase Commitments) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Entity Information [Line Items]
2025	$ 3,292
2026	1,673
2027	1,008
2028	448
2029	335
2030 and thereafter	1,143
Total	7,899
Long-term power purchase agreements
Entity Information [Line Items]
2025	94
2026	94
2027	95
2028	94
2029	94
2030 and thereafter	481
Total	952
Other purchase commitments
Entity Information [Line Items]
2025	3,198
2026	1,579
2027	913
2028	354
2029	241
2030 and thereafter	662
Total	6,947
DTE Electric
Entity Information [Line Items]
2025	706
2026	397
2027	401
2028	177
2029	133
2030 and thereafter	661
Total	2,475
DTE Electric | Long-term power purchase agreements
Entity Information [Line Items]
2025	99
2026	100
2027	99
2028	99
2029	97
2030 and thereafter	488
Total	982
DTE Electric | Other purchase commitments
Entity Information [Line Items]
2025	607
2026	297
2027	302
2028	78
2029	36
2030 and thereafter	173
Total	$ 1,493
DTE Electric | Minimum
Entity Information [Line Items]
Share of plant output	28%
DTE Electric | Maximum
Entity Information [Line Items]
Share of plant output	100%

Nuclear Operations (Details)

Nuclear Operations (Details) - DTE Electric $ in Millions		4 Months Ended	12 Months Ended
	May 16, 2014 kWh	May 15, 2014 $ / MWh	Dec. 31, 2024 USD ($)
Entity Information [Line Items]
Policy waiting period			84 days
Insurance coverage for extra expense when power plant unavailable			$ 490
Period of coverage of policy for extra expenses			3 years
Primary coverage for stabilization, decontamination, debris removal, repair and/or replacement of property, and decommissioning			$ 1,500
Excess coverage for stabilization, decontamination, debris removal, repair and/or replacement of property, and decommissioning			1,250
Combined coverage limit for total property damage			2,750
Total limit for property damage for non-nuclear events			1,800
Limit of coverage for aggregate extra expenses for non-nuclear events			$ 291
Period of coverage for extra expenses			2 years
Time period for TRIA after the first loss from terrorism			1 year
NEIL policies against terrorism loss, amount made available to all insured entities (up to)			$ 3,200
Maximum assessment if loss amount exceeds funds available			40
Public liability insurance for a nuclear incident			500
Maximum deferred premium charges that could be levied against each licensed nuclear facility			166
Limit of deferred premium charges per year per facility			$ 25
Company obligated to pay DOE fee of Fermi 2 electricity generated and sold (in dollars per MWh) | $ / MWh		1
New DOE fee for Fermi 2 electricity generated and sold (KWh) | kWh	0

Retirement Benefits and Trust_3

Retirement Benefits and Trusteed Assets (Pension Plan - Pension Cost Inclusions) (Details) - Pension plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 58	$ 57	$ 95
Interest cost	208	214	166
Expected return on plan assets	(341)	(352)	(346)
Amortization of:
Net actuarial loss	59	7	115
Prior service credit	(2)	(2)	(1)
Settlements	0	7	94
Net pension/other postretirement cost (credit)	$ (18)	$ (69)	$ 123

Retirement Benefits and Trust_4

Retirement Benefits and Trusteed Assets (Pension Plan - Other Changes in Plan Assets and Benefit Obligations recognized in Regulatory Assets and OCI) (Details) - Pension plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Other changes in plan assets and benefit obligations recognized in Regulatory assets and Other comprehensive income (loss)
Net actuarial (gain) loss	$ (49)	$ 62
Amortization of net actuarial loss and settlements	(59)	(14)
Amortization of prior service credit	2	2
Total recognized in Regulatory assets and liabilities and Other comprehensive income (loss)	(106)	50
Total recognized in net periodic pension credit, Regulatory assets, and Other comprehensive income (loss)	$ (124)	$ (19)

Retirement Benefits and Trust_5

Retirement Benefits and Trusteed Assets (Pension Plan - Reconciliation of Obligations, Assets and Funded Status of Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Amounts recognized in Regulatory assets (liabilities)
Regulatory assets	$ 6,821	$ 6,317
Pension plan
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Accumulated benefit obligation, end of year	3,803	4,089
Change in projected benefit obligation
Projected/Accumulated postretirement benefit obligation, beginning of year	4,318	4,309
Service cost	58	57	$ 95
Interest cost	208	214	166
Actuarial (gain) loss	(254)	74
Benefits paid	(348)	(329)
Settlements	0	(7)
Projected/Accumulated postretirement benefit obligation, end of year	3,982	4,318	4,309
Change in plan assets
Plan assets at fair value, beginning of year	3,960	3,897
Actual return on plan assets	137	363
Company contributions	9	36
Benefits paid	(348)	(329)
Settlements	0	(7)
Plan assets at fair value, end of year	3,758	3,960	$ 3,897
Funded status	(224)	(358)
Amount recorded as:
Current liabilities	(10)	(8)
Noncurrent liabilities	(214)	(350)
Defined benefit plans liabilities	(224)	(358)
Amounts recognized in Accumulated other comprehensive income, pre-tax
Net actuarial loss	76	76
Amounts recognized in Accumulated other comprehensive income, pre-tax	76	76
Amounts recognized in Regulatory assets (liabilities)
Net actuarial (gain) loss	1,318	1,426
Prior service credit	(3)	(5)
Regulatory assets	$ 1,315	$ 1,421

Retirement Benefits and Trust_6

Retirement Benefits and Trusteed Assets (Details Textuals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Annual contributions per employee, percentage		4%
Defined contribution plan cost		$ 76	$ 75	$ 73
DTE Electric
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan cost		$ 35	35	35
DTE Gas
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Annual contributions per employee, percentage		8%
Pension plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company contributions		$ 9	36
Pension (credit) cost		$ (18)	(69)	123
Expected return on plan assets for next fiscal year		7.80%
Pension plan | Qualified Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company contributions		$ 0
Pension plan | DTE Electric
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension funds transferred to (from) plan			50	50
Pension (credit) cost		(5)	(39)	101
Pension plan | DTE Electric | Forecast
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension funds transferred to (from) plan	$ 25
Pension plan | DTE Gas
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension funds transferred to (from) plan			(50)	(50)
Pension plan | DTE Gas | Forecast
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension funds transferred to (from) plan	$ (25)
Other postretirement benefit plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension (credit) cost		$ (44)	(38)	(66)
Expected return on plan assets for next fiscal year		7.50%
Retiree health care allowance will increase at lower of the rate of medical inflation or a set percentage		2%
Other postretirement benefit plan | DTE Electric
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension (credit) cost		$ (23)	$ (24)	$ (37)

Retirement Benefits and Trust_7

Retirement Benefits and Trusteed Assets (Pension Plan - Benefits related to Qualified and Nonqualified Pension Plans Expected to be paid) (Details) - Pension plan $ in Millions	Dec. 31, 2024 USD ($)
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	$ 321
2026	321
2027	323
2028	325
2029	321
2030-2034	1,585
Total	$ 3,196

Retirement Benefits and Trust_8

Retirement Benefits and Trusteed Assets (Pension Plan - Assumptions used in Determining the PBO and Net Pension Costs) (Details) - Pension plan	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Projected benefit obligation
Discount rate	5.65%	5%	5.19%
Rate of compensation increase	3.55%	3.80%	3.80%
Cash balance interest crediting rate	4.50%	3.60%	3.40%
Net pension costs
Discount rate	5%	5.19%	2.91%
Rate of compensation increase	3.80%	3.80%	3.80%
Expected long-term rate of return on plan assets	8%	7.60%	6.80%
Cash balance interest crediting rate	3.60%	3.40%	2.40%

Retirement Benefits and Trust_9

Retirement Benefits and Trusteed Assets (Pension Plan - Target Allocations of Plan Assets) (Details) - Pension plan	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	100%
U.S. Large Capitalization (Cap) Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	8%
U.S. Small Cap and Mid Cap Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	1%
Non-U.S. Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	6%
Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	58%
Hedge Funds and Similar Investments
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	8%
Private Equity and Other
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	19%

Retirement Benefits and Trus_10

Retirement Benefits and Trusteed Assets (Pension Plan - Fair Value Measurements) (Details) - Pension Plan - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	$ 3,758	$ 3,960	$ 3,897
Short-term Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	97	100
Equity Securities, Domestic
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	349	550
Equity Securities, International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	223	364
Fixed Income Securities, Governmental
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	703	609
Fixed Income Securities, Corporate
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,350	1,323
Hedge Funds and Similar Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	318	282
Private Equity and Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	718	732
Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	896	790
Level 1 | Short-term Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	97	100
Level 1 | Equity Securities, Domestic
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Level 1 | Equity Securities, International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	35	55
Level 1 | Fixed Income Securities, Governmental
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	627	531
Level 1 | Fixed Income Securities, Corporate
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Level 1 | Hedge Funds and Similar Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	137	104
Level 1 | Private Equity and Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,440	1,469
Level 2 | Short-term Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Level 2 | Equity Securities, Domestic
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Level 2 | Equity Securities, International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Level 2 | Fixed Income Securities, Governmental
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	76	78
Level 2 | Fixed Income Securities, Corporate
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,350	1,323
Level 2 | Hedge Funds and Similar Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	14	68
Level 2 | Private Equity and Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,422	1,701
Other | Short-term Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Other | Equity Securities, Domestic
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	349	550
Other | Equity Securities, International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	188	309
Other | Fixed Income Securities, Governmental
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Other | Fixed Income Securities, Corporate
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Other | Hedge Funds and Similar Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	167	110
Other | Private Equity and Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	$ 718	$ 732

Retirement Benefits and Trus_11

Retirement Benefits and Trusteed Assets (OPEB - Contributions to the VEBA) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Contribution Plan Disclosure [Line Items]
Contributions	$ 76	$ 75	$ 73
DTE Electric
Defined Contribution Plan Disclosure [Line Items]
Contributions	35	35	35
Retiree healthcare plan (VEBA)
Defined Contribution Plan Disclosure [Line Items]
Contributions	15	16	16
Retiree healthcare plan (VEBA) | DTE Electric
Defined Contribution Plan Disclosure [Line Items]
Contributions	$ 6	$ 7	$ 7

Retirement Benefits and Trus_12

Retirement Benefits and Trusteed Assets (OPEB - Postretirement Cost Inclusions) (Details) - Other postretirement benefit plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 18	$ 17	$ 27
Interest cost	62	65	48
Expected return on plan assets	(120)	(111)	(126)
Amortization of:
Net actuarial loss	6	10	4
Prior service credit	(10)	(19)	(19)
Net pension/other postretirement cost (credit)	(44)	(38)	(66)
DTE Electric
Defined Benefit Plan Disclosure [Line Items]
Service cost	14	13	20
Interest cost	47	49	37
Expected return on plan assets	(79)	(73)	(85)
Amortization of:
Net actuarial loss	1	1	5
Prior service credit	(6)	(14)	(14)
Net pension/other postretirement cost (credit)	$ (23)	$ (24)	$ (37)

Retirement Benefits and Trus_13

Retirement Benefits and Trusteed Assets (OPEB - Other Changes in Plan Assets and APBO Recognized in Regulatory Assets and OCI) (Details) - Other postretirement benefit plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Other changes in plan assets and accumulated postretirement benefit obligation recognized in Regulatory assets and liabilities and Other comprehensive income (loss)
Net actuarial gain	$ (103)	$ (17)
Amortization of net actuarial loss	(6)	(10)
Amortization of prior service credit	10	19
Total recognized in Regulatory assets and liabilities and Other comprehensive income (loss)	(99)	(8)
Total recognized in net periodic pension credit, Regulatory assets, and Other comprehensive income (loss)	(143)	(46)
DTE Electric
Other changes in plan assets and accumulated postretirement benefit obligation recognized in Regulatory assets and liabilities and Other comprehensive income (loss)
Net actuarial gain	(98)	(6)
Amortization of net actuarial loss	(1)	(1)
Amortization of prior service credit	6	14
Total recognized in Regulatory assets and liabilities and Other comprehensive income (loss)	(93)	7
Total recognized in net periodic pension credit, Regulatory assets, and Other comprehensive income (loss)	$ (116)	$ (17)

Retirement Benefits and Trus_14

Retirement Benefits and Trusteed Assets (OPEB - Reconciliation of Obligations, Assets and Funded Status of Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Amounts recognized in Regulatory assets (liabilities)
Regulatory liability	$ (3,037)	$ (2,674)
Regulatory assets	6,821	6,317
Other postretirement benefit plan
Change in accumulated postretirement benefit obligation
Projected/Accumulated postretirement benefit obligation, beginning of year	1,283	1,293
Service cost	18	17	$ 27
Interest cost	62	65	48
Actuarial (gain) loss	(165)	(5)
Benefits paid	(75)	(87)
Projected/Accumulated postretirement benefit obligation, end of year	1,123	1,283	1,293
Change in plan assets
Plan assets at fair value, beginning of year	1,614	1,577
Actual return on plan assets	58	124
Benefits paid	(78)	(87)
Plan assets at fair value, end of year	1,594	1,614	1,577
Funded status	471	331
Amount recorded as:
Noncurrent assets	705	633
Current liabilities	(1)	(1)
Noncurrent liabilities	(233)	(301)
Defined benefit plans assets (liabilities)	471	331
Amounts recognized in Accumulated other comprehensive income, pre-tax
Net actuarial gain	(14)	(13)
Amounts recognized in Regulatory assets (liabilities)
Net actuarial (gain) loss	65	173
Prior service credit	0	(10)
Regulatory assets	65	163
DTE Electric
Amounts recognized in Regulatory assets (liabilities)
Regulatory liability	(1,909)	(1,759)
Regulatory assets	6,226	5,695
DTE Electric | Other postretirement benefit plan
Change in accumulated postretirement benefit obligation
Projected/Accumulated postretirement benefit obligation, beginning of year	982	982
Service cost	14	13	20
Interest cost	47	49	37
Actuarial (gain) loss	(139)	2
Benefits paid	(55)	(64)
Projected/Accumulated postretirement benefit obligation, end of year	849	982	982
Change in plan assets
Plan assets at fair value, beginning of year	1,070	1,052
Actual return on plan assets	40	81
Benefits paid	(58)	(63)
Plan assets at fair value, end of year	1,052	1,070	$ 1,052
Funded status	203	88
Amount recorded as:
Noncurrent assets	428	378
Current liabilities	0	0
Noncurrent liabilities	(225)	(290)
Defined benefit plans assets (liabilities)	203	88
Amounts recognized in Accumulated other comprehensive income, pre-tax
Net actuarial gain	0	0
Amounts recognized in Regulatory assets (liabilities)
Net actuarial (gain) loss	(26)	73
Prior service credit	0	(6)
Regulatory liability	$ (26)
Regulatory assets		$ 67

Retirement Benefits and Trus_15

Retirement Benefits and Trusteed Assets (OPEB - Accumulated Postretirement Obligations in Excess of Plan Assets) (Details) - Other postretirement benefit plan - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Accumulated postretirement benefit obligation	$ 530	$ 628
Fair value of plan assets	296	326
Accumulated postretirement benefit obligation in excess of plan assets	234	302
DTE Electric
Defined Benefit Plan Disclosure [Line Items]
Accumulated postretirement benefit obligation	501	592
Fair value of plan assets	276	302
Accumulated postretirement benefit obligation in excess of plan assets	$ 225	$ 290

Retirement Benefits and Trus_16

Retirement Benefits and Trusteed Assets (OPEB - Benefits related to Qualified and Nonqualified Pension Plans Expected to be paid in the Next Ten Years) (Details) - Other postretirement benefit plan $ in Millions	Dec. 31, 2024 USD ($)
Defined Benefit Plan Disclosure [Line Items]
2025	$ 78
2026	82
2027	83
2028	85
2029	87
2030-2034	456
Total	871
DTE Electric
Defined Benefit Plan Disclosure [Line Items]
2025	59
2026	62
2027	63
2028	64
2029	66
2030-2034	347
Total	$ 661

Retirement Benefits and Trus_17

Retirement Benefits and Trusteed Assets (OPEB - Assumptions used in Determining the PBO and Net Pension Costs) (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accumulated postretirement benefit obligation
Ultimate health care trend rate			4.50%
Other postretirement benefit costs
Ultimate health care trend rate			4.50%
Other postretirement benefit plan
Accumulated postretirement benefit obligation
Discount rate	5.66%	5%	5.19%
Health care trend rate pre- 65	8.50%	7.75%	6.75%
Health care trend post- 65	9%	8.25%	7.25%
Ultimate health care trend rate	4.50%	4.50%	4.50%
Other postretirement benefit costs
Discount rate	5%	5.19%	2.91%
Expected long-term rate of return on plan assets	7.60%	7.20%	6.40%
Health care trend rate pre- 65	7.75%	6.75%	6.75%
Health care trend post- 65	8.25%	7.25%	7.25%
Ultimate health care trend rate	4.50%	4.50%	4.50%

Retirement Benefits and Trus_18

Retirement Benefits and Trusteed Assets (OPEB - Target Allocations of Plan Assets) (Details) - Other postretirement benefit plan	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	100%
U.S. Large Cap Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	4%
Non-U.S. Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	3%
Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	63%
Hedge Funds and Similar Investments
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	9%
Private Equity and Other
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	21%

Retirement Benefits and Trus_19

Retirement Benefits and Trusteed Assets (OPEB - Fair Value Measurements) (Details) - Other postretirement benefit plan - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	$ 1,594	$ 1,614	$ 1,577
Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	276	308
Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	529	511
Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	789	795
Short-term Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	33	41
Short-term Investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	33	41
Short-term Investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Short-term Investments | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Equity Securities, Domestic
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	67	76
Equity Securities, Domestic | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Equity Securities, Domestic | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Equity Securities, Domestic | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	67	76
Equity Securities, International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	40	50
Equity Securities, International | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	6	7
Equity Securities, International | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Equity Securities, International | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	34	43
Fixed Income Securities, Governmental
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	244	273
Fixed Income Securities, Governmental | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	210	242
Fixed Income Securities, Governmental | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	34	31
Fixed Income Securities, Governmental | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Fixed Income Securities, Corporate
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	700	671
Fixed Income Securities, Corporate | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Fixed Income Securities, Corporate | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	492	459
Fixed Income Securities, Corporate | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	208	212
Hedge Funds and Similar Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	133	125
Hedge Funds and Similar Investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	27	18
Hedge Funds and Similar Investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	3	21
Hedge Funds and Similar Investments | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	103	86
Private Equity and Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	377	378
Private Equity and Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Private Equity and Other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Private Equity and Other | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	377	378
DTE Electric
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,052	1,070	$ 1,052
DTE Electric | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	180	203
DTE Electric | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	348	337
DTE Electric | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	524	530
DTE Electric | Short-term Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	21	27
DTE Electric | Short-term Investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	21	27
DTE Electric | Short-term Investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Short-term Investments | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Equity Securities, Domestic
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	42	48
DTE Electric | Equity Securities, Domestic | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Equity Securities, Domestic | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Equity Securities, Domestic | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	42	48
DTE Electric | Equity Securities, International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	26	31
DTE Electric | Equity Securities, International | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	4	4
DTE Electric | Equity Securities, International | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Equity Securities, International | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	22	27
DTE Electric | Fixed Income Securities, Governmental
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	160	182
DTE Electric | Fixed Income Securities, Governmental | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	138	161
DTE Electric | Fixed Income Securities, Governmental | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	22	21
DTE Electric | Fixed Income Securities, Governmental | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Fixed Income Securities, Corporate
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	465	447
DTE Electric | Fixed Income Securities, Corporate | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Fixed Income Securities, Corporate | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	324	302
DTE Electric | Fixed Income Securities, Corporate | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	141	145
DTE Electric | Hedge Funds and Similar Investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	88	83
DTE Electric | Hedge Funds and Similar Investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	17	11
DTE Electric | Hedge Funds and Similar Investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2	14
DTE Electric | Hedge Funds and Similar Investments | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	69	58
DTE Electric | Private Equity and Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	250	252
DTE Electric | Private Equity and Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Private Equity and Other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
DTE Electric | Private Equity and Other | Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	$ 250	$ 252

Stock-Based Compensation (Detai

Stock-Based Compensation (Details Textuals) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized limit of common stock shares (in shares)	20,162,716
Performance units price per unit (in dollars per share) | $ / shares	1
DTE Electric | DTE Energy
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost charged against income (in millions) | $	$ 37	$ 31	$ 40
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum award per employee (in shares)	500,000
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum award per employee (in shares)	150,000
Award vesting period	3 years
Compensation cost charged against income (in millions) | $	$ 14	$ 14	$ 15
Performance Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum award per employee (in shares)	300,000
Award vesting period	3 years
Performance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum award per employee (in shares)	1,000,000

Stock-Based Compensation (Compo

Stock-Based Compensation (Components of Stock Based Compensation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Components of stock based-compensation [Abstract]
Stock-based compensation expense	$ 54	$ 48	$ 62
Tax benefit	$ 10	$ 9	$ 11

Stock-Based Compensation (Activ

Stock-Based Compensation (Activity Relating to Performance Share Awards) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Compensation Expense Recorded [Line Items]
Compensation expense	$ 54	$ 48	$ 62
Performance Share Awards
Compensation Expense Recorded [Line Items]
Weighted grant date fair value of awards granted (in dollars per share)	$ 106.04	$ 112.73	$ 120.25
Awards settled in cash	$ 0	$ 9	$ 10
Awards settled in stock	63	59	72
Compensation expense	$ 40	$ 34	$ 47

Stock-Based Compensation (Perfo

Stock-Based Compensation (Performance Share Awards Activity) (Details) - Performance shares - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Performance Shares
Balance at beginning of period (in shares)	990,493
Grants (in shares)	406,442
Forfeitures (in shares)	(89,966)
Payouts (in shares)	(330,126)
Balance at end of period (in shares)	976,843	990,493
Weighted Average Grant Date Fair Value
Balance at beginning of period (in dollars per share)	$ 121.29
Grants (in dollars per share)	106.04	$ 112.73	$ 120.25
Forfeitures (in dollars per share)	109.69
Payouts (in dollars per share)	102.83
Balance at end of period (in dollars per share)	$ 122.25	$ 121.29

Stock-Based Compensation (Unrec

Stock-Based Compensation (Unrecognized Compensation Costs) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Share Based Compensation Unrecognized and Non-Vested Cost [Line Items]
Unrecognized Compensation Cost	$ 56
Weighted Average to be Recognized	1 year 9 months 18 days
Stock awards
Share Based Compensation Unrecognized and Non-Vested Cost [Line Items]
Unrecognized Compensation Cost	$ 20
Weighted Average to be Recognized	1 year 11 months 12 days
Performance shares
Share Based Compensation Unrecognized and Non-Vested Cost [Line Items]
Unrecognized Compensation Cost	$ 36
Weighted Average to be Recognized	1 year 8 months 15 days

Segment and Related Informati_3

Segment and Related Information (Details Textuals) customer in Millions	12 Months Ended
	Dec. 31, 2024 segment customer
Segment Reporting Information [Line Items]
Number of reportable segments | segment	4
Number of electric utility customers | customer	2.3
Number of gas utility customers | customer	1.3
DTE Electric
Segment Reporting Information [Line Items]
Number of reportable segments | segment	1

Segment and Related Informati_4

Segment and Related Information (Inter-Segment Billing) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Operating Revenues	$ (12,457)	$ (12,745)	$ (19,228)
Operating Revenues — Non-utility operations	(4,467)	(5,279)	(10,985)
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Operating Revenues	230	242	264
Operating Revenues — Non-utility operations	145	156	186
Intersegment Eliminations [Member] | Electric segment
Segment Reporting Information [Line Items]
Operating Revenues	71	72	71
Operating Revenues — Non-utility operations	3	3	6
Intersegment Eliminations [Member] | Gas segment
Segment Reporting Information [Line Items]
Operating Revenues	16	17	13
Intersegment Eliminations [Member] | DTE Vantage
Segment Reporting Information [Line Items]
Operating Revenues	43	68	78
Intersegment Eliminations [Member] | Energy Trading segment
Segment Reporting Information [Line Items]
Operating Revenues	100	85	102
Corporate and Other
Segment Reporting Information [Line Items]
Operating Revenues — Non-utility operations	$ 0	$ 0	$ 0

Segment and Related Informati_5

Segment and Related Information (Financial Data) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Operating Revenues — Utility operations	$ 7,990	$ 7,466	$ 8,243
Operating Revenues — Non-utility operations	4,467	5,279	10,985
Depreciation and amortization	1,732	1,606	1,468
Interest expense	951	791	675
Interest income	(136)	(57)	(46)
Equity earnings (losses) of equity method investees	15	3	(14)
Other segment items (pre-tax)	8,525	8,836	16,033
Income Tax Expense (Benefit)	(34)	169	29
Net Income (Loss) Attributable to DTE Energy Company	1,404	1,397	1,083
Other Segment Financial Data
Investments in equity method investees	128	166	165
Capital expenditures and acquisitions	4,467	3,934	3,378
Goodwill	1,993	1,993	1,993
Total Assets	48,846	44,755	42,683
Operating Segments
Segment Reporting Information [Line Items]
Operating Revenues — Utility operations	8,075	7,552	8,321
Operating Revenues — Non-utility operations	4,612	5,435	11,171
Depreciation and amortization	1,732	1,606	1,467
Interest expense	658	567	495
Interest income	(108)	(70)	(50)
Equity earnings (losses) of equity method investees	16	8	2
Other segment items (pre-tax)	8,749	9,060	16,250
Income Tax Expense (Benefit)	51	261	100
Net Income (Loss) Attributable to DTE Energy Company	1,589	1,555	1,228
Other Segment Financial Data
Investments in equity method investees	105	139	132
Capital expenditures and acquisitions	4,467	3,934	3,378
Goodwill	1,993	1,993	1,993
Total Assets	47,098	42,302	40,125
Operating Segments | Electric
Segment Reporting Information [Line Items]
Operating Revenues — Utility operations	6,277	5,804	6,397
Operating Revenues — Non-utility operations	16	14	15
Depreciation and amortization	1,447	1,340	1,218
Interest expense	498	432	372
Interest income	(7)	(20)	(8)
Equity earnings (losses) of equity method investees	0	0	0
Other segment items (pre-tax)	3,314	3,216	3,849
Income Tax Expense (Benefit)	(31)	78	25
Net Income (Loss) Attributable to DTE Energy Company	1,072	772	956
Other Segment Financial Data
Investments in equity method investees	5	5	6
Capital expenditures and acquisitions	3,659	3,128	2,620
Goodwill	1,208	1,208	1,208
Total Assets	35,400	32,292	30,342
Operating Segments | Gas segment
Segment Reporting Information [Line Items]
Operating Revenues — Utility operations	1,798	1,748	1,924
Operating Revenues — Non-utility operations	0	0	0
Depreciation and amortization	221	209	192
Interest expense	118	102	91
Interest income	(10)	(9)	(8)
Equity earnings (losses) of equity method investees	1	1	2
Other segment items (pre-tax)	1,134	1,058	1,287
Income Tax Expense (Benefit)	77	93	88
Net Income (Loss) Attributable to DTE Energy Company	257	294	272
Other Segment Financial Data
Investments in equity method investees	18	16	15
Capital expenditures and acquisitions	740	746	693
Goodwill	743	743	743
Total Assets	8,474	7,722	7,321
Operating Segments | DTE Vantage
Segment Reporting Information [Line Items]
Operating Revenues — Utility operations	0	0	0
Operating Revenues — Non-utility operations	753	809	848
Depreciation and amortization	59	53	52
Interest expense	28	15	15
Interest income	(76)	(32)	(28)
Equity earnings (losses) of equity method investees	15	7	0
Other segment items (pre-tax)	629	635	699
Income Tax Expense (Benefit)	(37)	(22)	18
Net Income (Loss) Attributable to DTE Energy Company	135	153	92
Other Segment Financial Data
Investments in equity method investees	82	118	111
Capital expenditures and acquisitions	65	57	62
Goodwill	25	25	25
Total Assets	2,065	1,122	1,077
Operating Segments | Energy Trading segment
Segment Reporting Information [Line Items]
Operating Revenues — Utility operations	0	0	0
Operating Revenues — Non-utility operations	3,843	4,612	10,308
Depreciation and amortization	5	4	5
Interest expense	14	18	17
Interest income	(15)	(9)	(6)
Equity earnings (losses) of equity method investees	0	0	0
Other segment items (pre-tax)	3,672	4,151	10,415
Income Tax Expense (Benefit)	42	112	(31)
Net Income (Loss) Attributable to DTE Energy Company	125	336	(92)
Other Segment Financial Data
Investments in equity method investees	0	0	0
Capital expenditures and acquisitions	3	3	3
Goodwill	17	17	17
Total Assets	1,159	1,166	1,385
Corporate and Other
Segment Reporting Information [Line Items]
Operating Revenues — Utility operations	0	0	0
Operating Revenues — Non-utility operations	0	0	0
Depreciation and amortization	0	0	1
Interest expense	351	270	210
Interest income	(86)	(33)	(26)
Equity earnings (losses) of equity method investees	(1)	(5)	(16)
Other segment items (pre-tax)	6	18	47
Income Tax Expense (Benefit)	(85)	(92)	(71)
Net Income (Loss) Attributable to DTE Energy Company	(185)	(158)	(145)
Other Segment Financial Data
Investments in equity method investees	23	27	33
Capital expenditures and acquisitions	0	0	0
Goodwill	0	0	0
Total Assets	4,723	4,150	4,409
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Operating Revenues — Utility operations	(85)	(86)	(78)
Operating Revenues — Non-utility operations	(145)	(156)	(186)
Depreciation and amortization	0	0	0
Interest expense	(58)	(46)	(30)
Interest income	58	46	30
Equity earnings (losses) of equity method investees	0	0	0
Other segment items (pre-tax)	(230)	(242)	(264)
Income Tax Expense (Benefit)	0	0	0
Net Income (Loss) Attributable to DTE Energy Company	0	0	0
Other Segment Financial Data
Investments in equity method investees	0	0	0
Capital expenditures and acquisitions	0	0	0
Goodwill	0	0	0
Total Assets	(2,975)	(1,697)	(1,851)
Intersegment Eliminations [Member] | Electric
Segment Reporting Information [Line Items]
Operating Revenues — Non-utility operations	$ (3)	$ (3)	$ (6)

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Dividends declared	$ 859	$ 800	$ 710
Dividends paid	810	752	685
DTE Electric
Related Party Transaction [Line Items]
Dividends declared	776	1,002	763
Dividends paid	776	1,002	763
DTE Electric | DTE Energy
Related Party Transaction [Line Items]
Dividends declared	776	1,002	763
Dividends paid	776	1,002	763
Capital contribution from DTE Energy	$ 634	$ 759	600
DTE Electric | Affiliates
Related Party Transaction [Line Items]
Weighted average interest rate	4.70%	5.60%
DTE Electric | Energy sales
Related Party Transaction [Line Items]
Revenues and Other Income/ Costs	$ 11	$ 11	8
DTE Electric | Other services and interest
Related Party Transaction [Line Items]
Revenues and Other Income/ Costs	0	3	0
DTE Electric | Shared capital assets
Related Party Transaction [Line Items]
Revenues and Other Income/ Costs	58	58	57
DTE Electric | Fuel and purchased power
Related Party Transaction [Line Items]
Revenues and Other Income/ Costs	65	50	58
DTE Electric | Other services and interest
Related Party Transaction [Line Items]
Revenues and Other Income/ Costs	4	2	1
DTE Electric | Corporate expenses
Related Party Transaction [Line Items]
Revenues and Other Income/ Costs	$ 342	$ 299	$ 379