Consolidated Statements of Changes in Equity (Unaudited) - 9 months ended Sep. 30, 2015 - USD ($) $ in Millions	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-Controlling Interests	DTE Electric	DTE Electric Common Stock	DTE Electric Additional Paid-in Capital	DTE Electric Retained Earnings	DTE Electric Accumulated Other Comprehensive Income (Loss)
Beginning Balance, shares at Dec. 31, 2014	176,991,231	176,991,000				138,632,324	138,632,000
Beginning Balance at Dec. 31, 2014	$ 8,342	$ 3,904	$ 4,578	$ (155)	$ 15
Beginning Balance at Dec. 31, 2014	8,327					$ 5,196	$ 1,386	$ 2,400	$ 1,436	$ (26)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	643		647		(4)
Net Income	647					452			452
Dividends declared on common stock	(379)		(379)			(297)			(297)
Issuance of common stock, shares		105,000
Issuance of common stock	9	$ 9
Contribution of common stock to VEBA Trust, shares		1,428,000
Contribution of common stock to VEBA Trust	117	$ 117
Benefit obligations, net of taxes	9			9		0
Transfer of benefit obligations, net of taxes						28				28
Foreign currency translation	(4)			(4)
Stock-based compensation, distributions to noncontrolling interests and other, shares		952,000
Stock-based compensation, contributions, and distributions to noncontrolling interests and other	$ 96	$ 87	(1)		10
Capital contribution by parent company						$ 300		300
Ending Balance, shares at Sep. 30, 2015	179,475,625	179,476,000				138,632,324	138,632,000
Ending Balance at Sep. 30, 2015	$ 8,833	$ 4,117	$ 4,845	$ (150)	$ 21
Ending Balance at Sep. 30, 2015	$ 8,812					$ 5,679	$ 1,386	$ 2,700	$ 1,591	$ 2