Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	DTE Electric	DTE Electric Common Stock	DTE Electric Additional Paid-in Capital	DTE Electric Retained Earnings
Beginning Balance (in shares) at Dec. 31, 2018		181,925,000					138,632,000
Beginning Balance at Dec. 31, 2018	$ 10,717	$ 4,245	$ 6,112	$ (120)	$ 480
Beginning Balance at Dec. 31, 2018						$ 6,793	$ 1,386	$ 3,245	$ 2,162
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	401					147			147
Net Income	408		401		7
Dividends declared on common stock	(173)		(173)			(124)			(124)
Contribution of common stock to pension plan (in shares)		815,000
Contribution of common stock to pension plan	100	$ 100
Other comprehensive income, net of tax	2			2		0
Stock-based compensation, net distributions to (contributions from) noncontrolling interests, and other (in shares)		472,000
Stock-based compensation, net distributions to (contributions from) noncontrolling interests, and other	(34)	$ (21)	(1)		(12)
Ending Balance (in shares) at Mar. 31, 2019		183,212,000					138,632,000
Ending Balance at Mar. 31, 2019	$ 11,020	$ 4,324	6,364	(143)	475
Ending Balance at Mar. 31, 2019						$ 6,816	$ 1,386	3,245	2,185
Beginning Balance (in shares) at Dec. 31, 2019	192,208,533	192,209,000				138,632,324	138,632,000
Beginning Balance at Dec. 31, 2019	$ 11,836	$ 5,233	6,587	(148)	164
Beginning Balance at Dec. 31, 2019	11,672					$ 7,195	$ 1,386	3,425	2,384
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	340					94			94
Net Income	342		340		2
Dividends declared on common stock	(195)		(195)			(135)			(135)
Other comprehensive income, net of tax	3			3		$ 0
Stock-based compensation, net distributions to (contributions from) noncontrolling interests, and other (in shares)		403,000
Stock-based compensation, net distributions to (contributions from) noncontrolling interests, and other	$ 2	$ 2
Ending Balance (in shares) at Mar. 31, 2020	192,611,882	192,612,000				138,632,324	138,632,000
Ending Balance at Mar. 31, 2020	$ 11,988	$ 5,235	$ 6,732	$ (145)	$ 166
Ending Balance at Mar. 31, 2020	$ 11,822					$ 7,154	$ 1,386	$ 3,425	$ 2,343