Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

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

	2013		2012		2011
	(In millions, expect per share amounts)
Basic Earnings per Share
Net income attributable to DTE Energy Company	$	661	$	610	$	711
Average number of common shares outstanding	175		171		169
Weighted average net restricted shares outstanding	1		1		1
Dividends declared — common shares	$	453	$	413	$	392
Dividends declared — net restricted shares	1		1		1
Total distributed earnings	$	454	$	414	$	393
Net income less distributed earnings	$	207	$	196	$	318
Distributed (dividends per common share)	$	2.59	$	2.42	$	2.32
Undistributed	1.17		1.14		1.87
Total Basic Earnings per Common Share	$	3.76	$	3.56	$	4.19
Diluted Earnings per Share
Net income attributable to DTE Energy Company	$	661	$	610	$	711
Average number of common shares outstanding	175		171		169
Average incremental shares from assumed exercise of options	—		1		1
Common shares for dilutive calculation	175		172		170
Weighted average net restricted shares outstanding	1		1		1
Dividends declared — common shares	$	453	$	413	$	392
Dividends declared — net restricted shares	1		1		1
Total distributed earnings	$	454	$	414	$	393
Net income less distributed earnings	$	207	$	196	$	318
Distributed (dividends per common share)	$	2.59	$	2.42	$	2.32
Undistributed	1.17		1.13		1.86
Total Diluted Earnings per Common Share	$	3.76	$	3.55	$	4.18