Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following is a reconciliation of DTE Energy's basic and diluted income per share calculation:

	Three Months Ended March 31,
	2018		2017
	(In millions, except per share amounts)
Basic Earnings per Share
Net Income Attributable to DTE Energy Company	$	361	$	400
Less: Allocation of earnings to net restricted stock awards	1		1
Net income available to common shareholders — basic	$	360	$	399
Average number of common shares outstanding	180		179
Basic Earnings per Common Share	$	2.01	$	2.23
Diluted Earnings per Share
Net Income Attributable to DTE Energy Company	$	361	$	400
Less: Allocation of earnings to net restricted stock awards	1		1
Net income available to common shareholders — diluted	$	360	$	399
Average number of common shares outstanding	180		179
Diluted Earnings per Common Share(a)	$	2.00	$	2.23

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(a) The 2016 Equity Units excluded from the calculation of diluted EPS were approximately 6.6 million and 6.8 million for the three months endedMarch 31, 2018 and 2017, respectively, as the dilutive stock price threshold was not met.