Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2014

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 for the three months ended March 31:

	Three Months Ended
	March 31,
	2014		2013
	(In millions, except per share amounts)
Basic Earnings per Share
Net income attributable to DTE Energy Company	$	326	$	234
Average number of common shares outstanding	177		173
Weighted average net restricted shares outstanding	—		1
Dividends declared — common shares	$	116	$	107
Dividends declared — net restricted shares	—		1
Total distributed earnings	$	116	$	108
Net income less distributed earnings	$	210	$	126
Distributed (dividends per common share)	$	0.66	$	0.62
Undistributed	1.18		0.73
Total Basic Earnings per Common Share	$	1.84	$	1.35
Diluted Earnings per Share
Net income attributable to DTE Energy Company	$	326	$	234
Average number of common shares outstanding	177		173
Weighted average net restricted shares outstanding	—		1
Dividends declared — common shares	$	116	$	107
Dividends declared — net restricted shares	—		1
Total distributed earnings	$	116	$	108
Net income less distributed earnings	$	210	$	126
Distributed (dividends per common share)	$	0.66	$	0.62
Undistributed	1.18		0.72
Total Diluted Earnings per Common Share	$	1.84	$	1.34