Segment and Related Information (Inter-Segment Billing) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Operating Revenues	$ (19,228)	$ (14,964)	$ (11,423)
Operating Revenues — Non-utility operations	(10,985)	(7,676)	(4,578)
Electric
Segment Reporting Information [Line Items]
Operating Revenues	(6,412)	(5,821)	(5,520)
Gas
Segment Reporting Information [Line Items]
Operating Revenues	(1,924)	(1,553)	(1,414)
DTE Vantage
Segment Reporting Information [Line Items]
Operating Revenues	(848)	(1,482)	(1,224)
Energy Trading
Segment Reporting Information [Line Items]
Operating Revenues	(10,308)	(6,831)	(3,863)
Reclassifications and Eliminations
Segment Reporting Information [Line Items]
Operating Revenues	264	711	574
Operating Revenues — Non-utility operations	186
Reclassifications and Eliminations | Electric
Segment Reporting Information [Line Items]
Operating Revenues	71	64	61
Operating Revenues — Non-utility operations	6	4	2
Reclassifications and Eliminations | Gas
Segment Reporting Information [Line Items]
Operating Revenues	13	14	16
Reclassifications and Eliminations | DTE Vantage
Segment Reporting Information [Line Items]
Operating Revenues	78	575	464
Reclassifications and Eliminations | Energy Trading
Segment Reporting Information [Line Items]
Operating Revenues	102	56	31
Reclassifications and Eliminations | Corporate and Other
Segment Reporting Information [Line Items]
Operating Revenues	$ 0	$ 2	$ 2