Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Basic Earnings per Share
Net Income Attributable to DTE Energy Company — continuing operations	$ 1,083	$ 796	$ 1,054
Less: Allocation of earnings to net restricted stock awards	3	2	2
Net income from continuing operations available to common shareholders — basic	1,080	794	1,052
Net Income Attributable to DTE Energy Company — discontinued operations	0	111	314
Net income available to common shareholders — basic	$ 1,080	$ 905	$ 1,366
Average number of common shares outstanding — basic (in shares)	195.0	193.0	193.0
Income from continuing operations (in dollars per share)	$ 5.53	$ 4.11	$ 5.46
Income (loss) from discontinued operations (in dollars per share)	0	0.57	1.63
Basic Earnings per Common Share (in dollars per share)	$ 5.53	$ 4.68	$ 7.09
Diluted Earnings per Share
Net Income Attributable to DTE Energy Company — continuing operations	$ 1,083	$ 796	$ 1,054
Less: Allocation of earnings to net restricted stock awards	3	2	2
Net income from continuing operations available to common shareholders — diluted	1,080	794	1,052
Net Income Attributable to DTE Energy Company — discontinued operations	0	111	314
Net income available to common shareholders — diluted	$ 1,080	$ 905	$ 1,366
Average number of common shares outstanding — basic (in shares)	195.0	193.0	193.0
Average dilutive equity units and performance share awards (in shares)	1.0	1.0	0.0
Average number of common shares outstanding — diluted (in shares)	196.0	194.0	193.0
Income from continuing operations (in dollars per share)	$ 5.52	$ 4.10	$ 5.45
Income from discontinued operations (in dollars per share)	0	0.57	1.63
Diluted Earnings per Common Share (in dollars per share)	$ 5.52	$ 4.67	$ 7.08
Antidilutive securities excluded from computation of earnings per share (in shares)		11.5	10.3