Consolidated Statements of Changes in Shareholder's Equity (Unaudited) - 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, 2024		207,172,000			138,632,000
Beginning Balance at Dec. 31, 2024				$ 11,154	$ 1,386	$ 6,609	$ 3,159
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 445		$ 445	121			121
Dividends declared on common stock	$ (226)		(226)	(211)			(211)
Ending Balance (in shares) at Mar. 31, 2025		207,516,000			138,632,000
Ending Balance at Mar. 31, 2025				$ 11,064	$ 1,386	6,609	3,069
Beginning Balance (in shares) at Dec. 31, 2025	207,745,154	207,745,000		138,632,324	138,632,000
Beginning Balance at Dec. 31, 2025	$ 12,303			$ 12,414	$ 1,386	7,563	3,465
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	247		247	215			215
Dividends declared on common stock	$ (242)		$ (242)	$ (235)			(235)
Ending Balance (in shares) at Mar. 31, 2026	208,028,313	208,028,000		138,632,324	138,632,000
Ending Balance at Mar. 31, 2026	$ 12,323			$ 12,394	$ 1,386	$ 7,563	$ 3,445