Consolidated Statements of Changes in Equity (Unaudited) - 6 months ended Jun. 30, 2017 - 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)
Beginning Balance (in shares) at Dec. 31, 2016	179,432,581	179,433,000				138,632,324	138,632,000
Beginning Balance at Dec. 31, 2016	$ 9,499	$ 4,030	$ 5,114	$ (133)	$ 488
Beginning Balance at Dec. 31, 2016	9,011					$ 5,995	$ 1,386	$ 2,820	$ 1,787	$ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	569		577		(8)
Net Income	577					244			244
Dividends declared on common stock	(444)		(444)			$ (216)			(216)
Repurchase of common stock (in shares)		(524,000)
Repurchase of common stock	(51)	$ (51)
Benefit obligations, net of tax	7			7
Net change in unrealized gains on investments, net of tax	1			1
Stock-based compensation, net contributions from noncontrolling interests, and other (in shares)		485,000
Stock-based compensation, net contributions from noncontrolling interests, and other	$ (10)	$ (11)	(2)		3
Ending Balance (in shares) at Jun. 30, 2017	179,393,579	179,394,000				138,632,324	138,632,000
Ending Balance at Jun. 30, 2017	$ 9,571	$ 3,968	$ 5,245	$ (125)	$ 483
Ending Balance at Jun. 30, 2017	$ 9,088					$ 6,023	$ 1,386	$ 2,820	$ 1,815	$ 2