Short-Term Credit Arrangements and Borrowings (Tables)

12 Months Ended

Dec. 31, 2025

Short-Term Debt [Abstract]

Schedule of Availability Under Credit Facilities

The availability under the facilities in place at December 31, 2025 is shown in the following table:

	DTE Energy		DTE Electric		DTE Gas		Total
	(In millions)
Unsecured revolving credit facility, expiring October 2030	$	1,500	$	1,000	$	300	$	2,800
Unsecured letter of credit facility, expiring June 2026(a)	150		—		—		150
Unsecured letter of credit facility, expiring February 2027	200		—		—		200
Unsecured letter of credit facilities, expiring June 2028	150		—		—		150
Unsecured letter of credit facility(b)	75		—		—		75
Unsecured letter of credit facilities, expiring December 2026	—		150		—		150
Unsecured letter of credit facility(c)	—		175		—		175
Unsecured letter of credit facility(d)	—		150		—		150
	2,075		1,475		300		3,850
Amounts outstanding at December 31, 2025
Commercial paper issuances	150		652		80		882
Letters of credit	416		331		—		747
	566		983		80		1,629
Net availability at December 31, 2025	$	1,509	$	492	$	220	$	2,221

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(a)Uncommitted letter of credit facility.

(b)Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. DTE Electric may also utilize availability under this facility.

(c)Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. DTE Energy may also utilize availability under this facility.

(d)Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration.