Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

A reconciliation of both calculations is presented in the following table for the three and six months endedJune 30:

	Three Months Ended June 30,					Six Months Ended June 30,
	2015			2014		2015		2014
	(In millions, except per share amounts)
Basic Earnings per Share
Net income attributable to DTE Energy Company	$	109		$	124	$	382	$	450
Average number of common shares outstanding	179			177		179		177
Dividends declared — common shares	$	124		$	116	$	247	$	231
Dividends declared — net restricted shares	—			—		1		1
Total distributed earnings	$	124		$	116	$	248	$	232
Net income less distributed earnings	$	(15	)	$	8	$	134	$	218
Distributed (dividends per common share)	$	0.69		$	0.66	$	1.38	$	1.31
Undistributed	(0.08		)	0.04		0.75		1.23
Total Basic Earnings per Common Share	$	0.61		$	0.70	$	2.13	$	2.54
Diluted Earnings per Share
Net income attributable to DTE Energy Company	$	109		$	124	$	382	$	450
Average number of common shares outstanding	179			177		179		177
Dividends declared — common shares	$	124		$	116	$	247	$	231
Dividends declared — net restricted shares	—			—		1		1
Total distributed earnings	$	124		$	116	$	248	$	232
Net income less distributed earnings	$	(15	)	$	8	$	134	$	218
Distributed (dividends per common share)	$	0.69		$	0.66	$	1.38	$	1.31
Undistributed	(0.08		)	0.04		0.75		1.23
Total Diluted Earnings per Common Share	$	0.61		$	0.70	$	2.13	$	2.54