Regulatory Matters (Schedule of Regulatory Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Regulatory Liabilities [Line Items]
Regulatory liabilities	$ 2,707	$ 3,262
Less amount included in Current Liabilities	(34)	(156)
Regulatory liabilities, noncurrent	2,673	3,106
Refundable federal income taxes
Regulatory Liabilities [Line Items]
Regulatory liabilities	1,908	2,117
Removal costs liability
Regulatory Liabilities [Line Items]
Regulatory liabilities	371	679
Negative other postretirement offset
Regulatory Liabilities [Line Items]
Regulatory liabilities	191	150
Non-service pension and other postretirement costs
Regulatory Liabilities [Line Items]
Regulatory liabilities	154	110
Renewable energy
Regulatory Liabilities [Line Items]
Regulatory liabilities	21	13
Energy Waste Reduction
Regulatory Liabilities [Line Items]
Regulatory liabilities	11	27
Incremental tree trim surge
Regulatory Liabilities [Line Items]
Regulatory liabilities	4	90
COVID-19 voluntary refund
Regulatory Liabilities [Line Items]
Regulatory liabilities	0	30
Other
Regulatory Liabilities [Line Items]
Regulatory liabilities	47	46
DTE Electric
Regulatory Liabilities [Line Items]
Regulatory liabilities	1,811	2,375
Less amount included in Current Liabilities	(33)	(154)
Regulatory liabilities, noncurrent	1,778	2,221
DTE Electric | Refundable federal income taxes
Regulatory Liabilities [Line Items]
Regulatory liabilities	1,534	1,729
DTE Electric | Removal costs liability
Regulatory Liabilities [Line Items]
Regulatory liabilities	0	283
DTE Electric | Negative other postretirement offset
Regulatory Liabilities [Line Items]
Regulatory liabilities	128	106
DTE Electric | Non-service pension and other postretirement costs
Regulatory Liabilities [Line Items]
Regulatory liabilities	73	54
DTE Electric | Renewable energy
Regulatory Liabilities [Line Items]
Regulatory liabilities	21	13
DTE Electric | Energy Waste Reduction
Regulatory Liabilities [Line Items]
Regulatory liabilities	11	27
DTE Electric | Incremental tree trim surge
Regulatory Liabilities [Line Items]
Regulatory liabilities	4	90
DTE Electric | COVID-19 voluntary refund
Regulatory Liabilities [Line Items]
Regulatory liabilities	0	30
DTE Electric | Other
Regulatory Liabilities [Line Items]
Regulatory liabilities	$ 40	$ 43