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, 2022		205,632,000			138,632,000
Beginning Balance at Dec. 31, 2022				$ 9,695	$ 1,386	$ 5,216	$ 3,093
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income				100			100
Dividends declared on common stock	$ (196)		$ (196)	(182)			(182)
Ending Balance (in shares) at Mar. 31, 2023		206,109,000			138,632,000
Ending Balance at Mar. 31, 2023				9,613	$ 1,386	5,216	3,011
Beginning Balance (in shares) at Dec. 31, 2022		205,632,000			138,632,000
Beginning Balance at Dec. 31, 2022				9,695	$ 1,386	5,216	3,093
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	978			548
Ending Balance (in shares) at Sep. 30, 2023		206,259,000			138,632,000
Ending Balance at Sep. 30, 2023				9,712	$ 1,386	5,216	3,110
Beginning Balance (in shares) at Mar. 31, 2023		206,109,000			138,632,000
Beginning Balance at Mar. 31, 2023				9,613	$ 1,386	5,216	3,011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income				179			179
Dividends declared on common stock	(393)		(393)	(174)			(174)
Ending Balance (in shares) at Jun. 30, 2023		206,176,000			138,632,000
Ending Balance at Jun. 30, 2023				9,618	$ 1,386	5,216	3,016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 332			269			269
Dividends declared on common stock				(175)			(175)
Ending Balance (in shares) at Sep. 30, 2023		206,259,000			138,632,000
Ending Balance at Sep. 30, 2023				$ 9,712	$ 1,386	5,216	3,110
Beginning Balance (in shares) at Dec. 31, 2023	206,357,070	206,357,000		138,632,324	138,632,000
Beginning Balance at Dec. 31, 2023	$ 11,050			$ 10,224	$ 1,386	5,975	2,863
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income				170			170
Dividends declared on common stock	$ (211)		(211)	(194)			(194)
Ending Balance (in shares) at Mar. 31, 2024		206,937,000			138,632,000
Ending Balance at Mar. 31, 2024				$ 10,200	$ 1,386	5,975	2,839
Beginning Balance (in shares) at Dec. 31, 2023	206,357,070	206,357,000		138,632,324	138,632,000
Beginning Balance at Dec. 31, 2023	$ 11,050			$ 10,224	$ 1,386	5,975	2,863
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 1,112			$ 886
Ending Balance (in shares) at Sep. 30, 2024	207,100,586	207,101,000		138,632,324	138,632,000
Ending Balance at Sep. 30, 2024	$ 11,592			$ 10,528	$ 1,386	5,975	3,167
Beginning Balance (in shares) at Mar. 31, 2024		206,937,000			138,632,000
Beginning Balance at Mar. 31, 2024				10,200	$ 1,386	5,975	2,839
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income				278			278
Dividends declared on common stock	(422)		$ (422)	(194)			(194)
Ending Balance (in shares) at Jun. 30, 2024		207,020,000			138,632,000
Ending Balance at Jun. 30, 2024				10,284	$ 1,386	5,975	2,923
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 477			438			438
Dividends declared on common stock				$ (194)			(194)
Ending Balance (in shares) at Sep. 30, 2024	207,100,586	207,101,000		138,632,324	138,632,000
Ending Balance at Sep. 30, 2024	$ 11,592			$ 10,528	$ 1,386	$ 5,975	$ 3,167