Short-Term Credit Arrangements and Borrowings (Schedule of Borrowings) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Jun. 30, 2022	May 31, 2022
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 3,256
Amounts outstanding	1,502
Net availability	1,754
DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	800
Amounts outstanding	568
Net availability	232
DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	300
Amounts outstanding	242
Net availability	58
DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	2,156
Amounts outstanding	692
Net availability	1,464
Revolving credit facility
Line Of Credit Facility [Line Items]
Amounts outstanding	81
Revolving credit facility | DTE Electric
Line Of Credit Facility [Line Items]
Amounts outstanding	0
Revolving credit facility | DTE Gas
Line Of Credit Facility [Line Items]
Amounts outstanding	0
Revolving credit facility | DTE Energy
Line Of Credit Facility [Line Items]
Amounts outstanding	81
Revolving credit facility | Unsecured revolving credit facility, expiring October 2027
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	2,600
Revolving credit facility | Unsecured revolving credit facility, expiring October 2027 | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	800
Revolving credit facility | Unsecured revolving credit facility, expiring October 2027 | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	300
Revolving credit facility | Unsecured revolving credit facility, expiring October 2027 | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	1,500
Revolving credit facility | Unsecured Canadian revolving credit facility, expiring May 2023
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	81
Revolving credit facility | Unsecured Canadian revolving credit facility, expiring May 2023 | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Revolving credit facility | Unsecured Canadian revolving credit facility, expiring May 2023 | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Revolving credit facility | Unsecured Canadian revolving credit facility, expiring May 2023 | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	81
Letters of credit
Line Of Credit Facility [Line Items]
Amounts outstanding	340
Letters of credit | DTE Electric
Line Of Credit Facility [Line Items]
Amounts outstanding	0
Letters of credit | DTE Gas
Line Of Credit Facility [Line Items]
Amounts outstanding	0
Letters of credit | DTE Energy
Line Of Credit Facility [Line Items]
Amounts outstanding	340
Letters of credit | Unsecured letter of credit facility, expiring February 2025
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	150
Letters of credit | Unsecured letter of credit facility, expiring February 2025 | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility, expiring February 2025 | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility, expiring February 2025 | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	150
Letters of credit | Unsecured letter of credit facility, expiring June 2023
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	375
Letters of credit | Unsecured letter of credit facility, expiring June 2023 | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility, expiring June 2023 | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility, expiring June 2023 | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	375	$ 375	$ 70
Letters of credit | Unsecured letter of credit facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	50
Letters of credit | Unsecured letter of credit facility | DTE Electric
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility | DTE Gas
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	0
Letters of credit | Unsecured letter of credit facility | DTE Energy
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	50
Commercial paper issuances
Line Of Credit Facility [Line Items]
Amounts outstanding	1,081
Commercial paper issuances | DTE Electric
Line Of Credit Facility [Line Items]
Amounts outstanding	568
Commercial paper issuances | DTE Gas
Line Of Credit Facility [Line Items]
Amounts outstanding	242
Commercial paper issuances | DTE Energy
Line Of Credit Facility [Line Items]
Amounts outstanding	$ 271