Short-Term Credit Arrangements and Borrowings (Tables)

3 Months Ended

Mar. 31, 2023

Short-Term Debt [Abstract]

Schedule of Line of Credit Facilities

The availability under these facilities as of March 31, 2023 is shown in the following table:

	DTE Energy		DTE Electric		DTE Gas		Total
	(In millions)
Unsecured revolving credit facility, expiring October 2027	$	1,500	$	800	$	300	$	2,600
Unsecured Canadian revolving credit facility, expiring May 2023	81		—		—		81
Unsecured letter of credit facility, expiring February 2025	150		—		—		150
Unsecured letter of credit facility, expiring June 2023	375		—		—		375
Unsecured letter of credit facility(a)	50		—		—		50
	2,156		800		300		3,256
Amounts outstanding at March 31, 2023
Revolver borrowings	80		—		—		80
Commercial paper issuances	50		—		—		50
Letters of credit	315		—		—		315
	445		—		—		445
Net availability at March 31, 2023	$	1,711	$	800	$	300	$	2,811

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