Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

A reconciliation of both calculations is presented in the following table as of December 31:

	2014		2013		2012
	(In millions, expect per share amounts)
Basic Earnings per Share
Net income attributable to DTE Energy Company	$	905	$	661	$	610
Average number of common shares outstanding	177		175		171
Weighted average net restricted shares outstanding	—		1		1
Dividends declared — common shares	$	475	$	453	$	413
Dividends declared — net restricted shares	1		1		1
Total distributed earnings	$	476	$	454	$	414
Net income less distributed earnings	$	429	$	207	$	196
Distributed (dividends per common share)	$	2.69	$	2.59	$	2.42
Undistributed	2.42		1.17		1.14
Total Basic Earnings per Common Share	$	5.11	$	3.76	$	3.56
Diluted Earnings per Share
Net income attributable to DTE Energy Company	$	905	$	661	$	610
Average number of common shares outstanding	177		175		171
Average incremental shares from assumed exercise of options	—		—		1
Common shares for dilutive calculation	177		175		172
Weighted average net restricted shares outstanding	—		1		1
Dividends declared — common shares	$	475	$	453	$	413
Dividends declared — net restricted shares	1		1		1
Total distributed earnings	$	476	$	454	$	414
Net income less distributed earnings	$	429	$	207	$	196
Distributed (dividends per common share)	$	2.69	$	2.59	$	2.42
Undistributed	2.41		1.17		1.13
Total Diluted Earnings per Common Share	$	5.10	$	3.76	$	3.55