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, 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				201			201
Dividends declared on common stock	$ (171)		$ (171)	(277)			(277)
Ending Balance (in shares) at Mar. 31, 2022		193,739,000			138,632,000
Ending Balance at Mar. 31, 2022				8,827	$ 1,386	4,616	2,825
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	818			750
Ending Balance (in shares) at Sep. 30, 2022		193,742,000			138,632,000
Ending Balance at Sep. 30, 2022				9,349	$ 1,386	4,912	3,051
Beginning Balance (in shares) at Mar. 31, 2022		193,739,000			138,632,000
Beginning Balance at Mar. 31, 2022				8,827	$ 1,386	4,616	2,825
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income				186			186
Dividends declared on common stock	(343)		(343)	(162)			(162)
Ending Balance (in shares) at Jun. 30, 2022		193,736,000			138,632,000
Ending Balance at Jun. 30, 2022				8,851	$ 1,386	4,616	2,849
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 387			363			363
Dividends declared on common stock				(161)			(161)
Capital contribution by parent company				296		296
Ending Balance (in shares) at Sep. 30, 2022		193,742,000			138,632,000
Ending Balance at Sep. 30, 2022				$ 9,349	$ 1,386	4,912	3,051
Beginning Balance (in shares) at Dec. 31, 2022	205,632,393	205,632,000		138,632,324	138,632,000
Beginning Balance at Dec. 31, 2022	$ 10,397			$ 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	205,632,393	205,632,000		138,632,324	138,632,000
Beginning Balance at Dec. 31, 2022	$ 10,397			$ 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	206,258,727	206,259,000		138,632,324	138,632,000
Ending Balance at Sep. 30, 2023	$ 10,850			$ 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	206,258,727	206,259,000		138,632,324	138,632,000
Ending Balance at Sep. 30, 2023	$ 10,850			$ 9,712	$ 1,386	$ 5,216	$ 3,110