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, 2020		193,771,000			138,632,000
Beginning Balance at Dec. 31, 2020				$ 8,070	$ 1,386	$ 4,061	$ 2,623
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income				208			208
Dividends declared on common stock	$ (210)		$ (210)	(147)			(147)
Ending Balance (in shares) at Mar. 31, 2021		193,727,000			138,632,000
Ending Balance at Mar. 31, 2021				8,131	$ 1,386	4,061	2,684
Beginning Balance (in shares) at Dec. 31, 2020		193,771,000			138,632,000
Beginning Balance at Dec. 31, 2020				8,070	$ 1,386	4,061	2,623
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	601			790
Ending Balance (in shares) at Sep. 30, 2021		193,727,000			138,632,000
Ending Balance at Sep. 30, 2021				8,692	$ 1,386	4,334	2,972
Beginning Balance (in shares) at Mar. 31, 2021		193,727,000			138,632,000
Beginning Balance at Mar. 31, 2021				8,131	$ 1,386	4,061	2,684
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income				238			238
Dividends declared on common stock	(370)		(370)	(146)			(146)
Ending Balance (in shares) at Jun. 30, 2021		193,752,000			138,632,000
Ending Balance at Jun. 30, 2021				8,223	$ 1,386	4,061	2,776
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 25			344			344
Dividends declared on common stock				(148)			(148)
Capital contribution by parent company				273		273
Ending Balance (in shares) at Sep. 30, 2021		193,727,000			138,632,000
Ending Balance at Sep. 30, 2021				$ 8,692	$ 1,386	4,334	2,972
Beginning Balance (in shares) at Dec. 31, 2021	193,747,509	193,748,000		138,632,324	138,632,000
Beginning Balance at Dec. 31, 2021	$ 8,705			$ 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	193,747,509	193,748,000		138,632,324	138,632,000
Beginning Balance at Dec. 31, 2021	$ 8,705			$ 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	193,741,991	193,742,000		138,632,324	138,632,000
Ending Balance at Sep. 30, 2022	$ 8,980			$ 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	193,741,991	193,742,000		138,632,324	138,632,000
Ending Balance at Sep. 30, 2022	$ 8,980			$ 9,349	$ 1,386	$ 4,912	$ 3,051