Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2020

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 for the years ended December 31:

	2020		2019		2018
	(In millions, except per share amounts)
Basic Earnings per Share
Net Income Attributable to DTE Energy Company	$	1,368	$	1,169	$	1,120
Less: Allocation of earnings to net restricted stock awards	(2)		(2)		(2)
Net income available to common shareholders — basic	$	1,366	$	1,167	$	1,118
Average number of common shares outstanding — basic	193		185		181
Basic Earnings per Common Share	$	7.09	$	6.32	$	6.18
Diluted Earnings per Share
Net Income Attributable to DTE Energy Company	$	1,368	$	1,169	$	1,120
Less: Allocation of earnings to net restricted stock awards	(2)		(2)		(2)
Net income available to common shareholders — diluted	$	1,366	$	1,167	$	1,118
Average number of common shares outstanding - diluted	193		185		181
Diluted Earnings per Common Share(a)	$	7.08	$	6.31	$	6.17

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(a)Equity Units excluded from the calculation of diluted EPS were approximately 10.3 million for the years ended December 31, 2020 and 2019, respectively, and 6.3 million for the year ended December 31, 2018, as the dilutive stock price threshold was not met. For more information, see Note 15 to the Consolidated Financial Statements, "Long-Term Debt."