Short-Term Credit Arrangements and Borrowings (Tables)

9 Months Ended

Sep. 30, 2023

Short-Term Debt [Abstract]

Schedule of Line of Credit Facilities

The availability under these facilities as of September 30, 2023 is shown in the following table:

	DTE Energy		DTE Electric		DTE Gas		Total
	(In millions)
Unsecured revolving credit facility, expiring October 2028	$	1,500	$	800	$	300	$	2,600
Unsecured letter of credit facility, expiring June 2024	175		—		—		175
Unsecured letter of credit facility, expiring February 2025	150		—		—		150
Unsecured letter of credit facility(a)	100		—		—		100
Unsecured letter of credit facility(b)	—		100		—		100
Unsecured letter of credit facility(a)	50		—		—		50
	1,975		900		300		3,175
Amounts outstanding at September 30, 2023
Commercial paper issuances	371		656		190		1,217
Letters of credit	144		23		—		167
	515		679		190		1,384
Net availability at September 30, 2023	$	1,460	$	221	$	110	$	1,791

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

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