Short-Term Credit Arrangements and Borrowings (Tables)

3 Months Ended

Mar. 31, 2022

Short-term Debt [Abstract]

Schedule of Line of Credit Facilities

The availability under these facilities as of March 31, 2022 is shown in the following table:

	DTE Energy		DTE Electric		DTE Gas		Total
	(In millions)
Unsecured revolving credit facility, expiring April 2025(a)	$	1,500	$	500	$	300	$	2,300
Unsecured term loan(b)	400		—		—		400
Unsecured Canadian revolving credit facility, expiring May 2023	88		—		—		88
Unsecured letter of credit facility, expiring February 2023	150		—		—		150
Unsecured letter of credit facility, expiring July 2023	70		—		—		70
Unsecured letter of credit facility(c)	50		—		—		50
	2,258		500		300		3,058
Amounts outstanding at March 31, 2022
Revolver borrowings	83		—		—		83
Commercial paper issuances	161		—		—		161
Letters of credit	288		—		—		288
	532		—		—		532
Net availability at March 31, 2022	$	1,726	$	500	$	300	$	2,526

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(a)Total availability of $102 million expires in April 2024, including $67 million at DTE Energy, $22 million at DTE Electric, and $13 million at DTE Gas. All other availability expires in April 2025.

(b)Term loan initially scheduled to expire June 2022 was terminated in April 2022.

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