Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 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 September 30,				Nine Months Ended September 30,
	2026		2025		2026		2025
	(In millions, except per share amounts)
Basic Earnings per Share
Net Income Attributable to DTE Energy Company	$	470	$	419	$	999	$	1,093
Less: Allocation of earnings to net restricted stock awards	1		1		3		3
Net income available to common shareholders — basic	$	469	$	418	$	996	$	1,090
Average number of common shares outstanding — basic	208		207		208		207
Basic Earnings per Common Share	$	2.26	$	2.02	$	4.80	$	5.26
Diluted Earnings per Share
Net Income Attributable to DTE Energy Company	$	470	$	419	$	999	$	1,093
Less: Allocation of earnings to net restricted stock awards	1		1		3		3
Net income available to common shareholders — diluted	$	469	$	418	$	996	$	1,090
Average number of common shares outstanding — basic	208		207		208		207
Average number of common shares outstanding — diluted	208		207		208		207
Diluted Earnings per Common Share	$	2.25	$	2.01	$	4.79	$	5.26