Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2026

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,
	2026		2025
	(In millions, except per share amounts)
Basic Earnings per Share
Net Income Attributable to DTE Energy Company	$	247	$	445
Less: Allocation of earnings to net restricted stock awards	—		1
Net income available to common shareholders — basic	$	247	$	444
Average number of common shares outstanding — basic	207		207
Basic Earnings per Common Share	$	1.19	$	2.14
Diluted Earnings per Share
Net Income Attributable to DTE Energy Company	$	247	$	445
Less: Allocation of earnings to net restricted stock awards	—		1
Net income available to common shareholders — diluted	$	247	$	444
Average number of common shares outstanding — basic	207		207
Average performance share awards and ATM dilutive shares	1		—
Average number of common shares outstanding — diluted	208		207
Diluted Earnings per Common Share	$	1.19	$	2.14