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	DTE Electric Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Implementation of ASU 2016-09 | Accounting Standards Update 2016-09	$ 3		$ 3
Beginning Balance, shares at Dec. 31, 2015	179,470,213	179,470,000				138,632,324	138,632,000
Beginning Balance at Dec. 31, 2015	$ 8,795	$ 4,123	4,794	$ (145)	$ 23
Beginning Balance at Dec. 31, 2015	8,772					$ 5,673	$ 1,386	$ 2,700	$ 1,585	$ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	710		737		(27)
Net Income	737					547			547
Dividends declared on common stock	(400)		(400)			$ (315)			(315)
Repurchase of common stock, Shares		(394,000)
Repurchase of common stock	(33)	$ (33)
Benefit obligations, net of tax	6			6
Net change in unrealized gains on investments, net of tax	1			1
Stock-based compensation, net contributions from noncontrolling interests, and other, Shares		359,000
Stock-based compensation, net contributions from noncontrolling interests, and other	$ 67	$ 47	(3)		23
Ending Balance, shares at Sep. 30, 2016	179,434,907	179,435,000				138,632,324	138,632,000
Ending Balance at Sep. 30, 2016	$ 9,149	$ 4,137	$ 5,131	$ (138)	$ 19
Ending Balance at Sep. 30, 2016	$ 9,130					$ 5,905	$ 1,386	$ 2,700	$ 1,817	$ 2