Consolidated Statements of Changes in Equity (Unaudited) - DTE Energy Company - USD ($) $ in Millions	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning Balance (in shares) at Dec. 31, 2023		206,357,000
Beginning Balance at Dec. 31, 2023	$ 11,055	$ 6,713	$ 4,404	$ (67)	$ 5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	313		313
Dividends declared on common stock	(211)		(211)
Issuance of common stock (in shares)		84,000
Issuance of common stock	9	$ 9
Other comprehensive income (loss), net of tax	25			25
Stock-based compensation and other (in shares)		496,000
Stock-based compensation and other	(13)	$ (12)	(1)
Ending Balance (in shares) at Mar. 31, 2024		206,937,000
Ending Balance at Mar. 31, 2024	11,178	$ 6,710	4,505	(42)	5
Beginning Balance (in shares) at Dec. 31, 2023		206,357,000
Beginning Balance at Dec. 31, 2023	11,055	$ 6,713	4,404	(67)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,112
Ending Balance (in shares) at Sep. 30, 2024		207,101,000
Ending Balance at Sep. 30, 2024	11,598	$ 6,754	4,880	(42)	6
Beginning Balance (in shares) at Mar. 31, 2024		206,937,000
Beginning Balance at Mar. 31, 2024	11,178	$ 6,710	4,505	(42)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	322		322
Dividends declared on common stock	(422)		(422)
Issuance of common stock (in shares)		83,000
Issuance of common stock	9	$ 9
Other comprehensive income (loss), net of tax	12			12
Stock-based compensation and other	13	$ 13	(1)		1
Ending Balance (in shares) at Jun. 30, 2024		207,020,000
Ending Balance at Jun. 30, 2024	11,112	$ 6,732	4,404	(30)	6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	477		477
Issuance of common stock (in shares)		75,000
Issuance of common stock	8	$ 8
Other comprehensive income (loss), net of tax	(12)			(12)
Stock-based compensation and other (in shares)		6,000
Stock-based compensation and other	13	$ 14	(1)
Ending Balance (in shares) at Sep. 30, 2024		207,101,000
Ending Balance at Sep. 30, 2024	$ 11,598	$ 6,754	4,880	(42)	6
Beginning Balance (in shares) at Dec. 31, 2024	207,171,582	207,172,000
Beginning Balance at Dec. 31, 2024	$ 11,704	$ 6,779	4,946	(26)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	445		445
Dividends declared on common stock	(226)		(226)
Issuance of common stock (in shares)		73,000
Issuance of common stock	9	$ 9
Other comprehensive income (loss), net of tax	(2)			(2)
Stock-based compensation and other (in shares)		271,000
Stock-based compensation and other	(3)	$ (2)	(2)		1
Ending Balance (in shares) at Mar. 31, 2025		207,516,000
Ending Balance at Mar. 31, 2025	$ 11,927	$ 6,786	5,163	(28)	6
Beginning Balance (in shares) at Dec. 31, 2024	207,171,582	207,172,000
Beginning Balance at Dec. 31, 2024	$ 11,704	$ 6,779	4,946	(26)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 1,093
Ending Balance (in shares) at Sep. 30, 2025	207,683,012	207,683,000
Ending Balance at Sep. 30, 2025	$ 12,163	$ 6,835	5,357	(34)	5
Beginning Balance (in shares) at Mar. 31, 2025		207,516,000
Beginning Balance at Mar. 31, 2025	11,927	$ 6,786	5,163	(28)	6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	229		229
Dividends declared on common stock	(453)		(453)
Issuance of common stock (in shares)		67,000
Issuance of common stock	8	$ 8
Other comprehensive income (loss), net of tax	1			1
Stock-based compensation and other (in shares)		5,000
Stock-based compensation and other	15	$ 15	1		(1)
Ending Balance (in shares) at Jun. 30, 2025		207,588,000
Ending Balance at Jun. 30, 2025	11,727	$ 6,809	4,940	(27)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	419		419
Issuance of common stock (in shares)		64,000
Issuance of common stock	9	$ 9
Other comprehensive income (loss), net of tax	(7)			(7)
Stock-based compensation and other (in shares)		31,000
Stock-based compensation and other	$ 15	$ 17	(2)
Ending Balance (in shares) at Sep. 30, 2025	207,683,012	207,683,000
Ending Balance at Sep. 30, 2025	$ 12,163	$ 6,835	$ 5,357	$ (34)	$ 5