Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 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 months endedMarch 31:

	Three Months Ended March 31,
	2015		2014
	(In millions, except per share amounts)
Basic Earnings per Share
Net income attributable to DTE Energy Company	$	273	$	326
Average number of common shares outstanding	178		177
Dividends declared — common shares	$	123	$	116
Dividends declared — net restricted shares	1		—
Total distributed earnings	$	124	$	116
Net income less distributed earnings	$	149	$	210
Distributed (dividends per common share)	$	0.69	$	0.66
Undistributed	0.84		1.18
Total Basic Earnings per Common Share	$	1.53	$	1.84
Diluted Earnings per Share
Net income attributable to DTE Energy Company	$	273	$	326
Average number of common shares outstanding	178		177
Dividends declared — common shares	$	123	$	116
Dividends declared — net restricted shares	1		—
Total distributed earnings	$	124	$	116
Net income less distributed earnings	$	149	$	210
Distributed (dividends per common share)	$	0.69	$	0.66
Undistributed	0.84		1.18
Total Diluted Earnings per Common Share	$	1.53	$	1.84