Short-Term Credit Arrangements and Borrowings (Tables)

3 Months Ended

Mar. 31, 2021

Short-term Debt [Abstract]

Schedule of Line of Credit Facilities

The availability under these facilities as of March 31, 2021 is shown in the following table:

	DTE Energy		DTE Electric		DTE Gas		Total
	(In millions)
Unsecured letter of credit facility, expiring in February 2023	$	150	$	—	$	—	$	150
Unsecured letter of credit facility, expiring in August 2021	110		—		—		110
Unsecured term loan, expiring in November 2021(a)	—		200		—		200
Unsecured Canadian revolving credit facility, expiring May 2023	88		—		—		88
Unsecured revolving credit facility, expiring April 2025(b)	1,500		500		300		2,300
	1,848		700		300		2,848
Amounts outstanding at March 31, 2021
Letters of credit	212		—		—		212
Revolver borrowings	52		—		—		52
	264		—		—		264
Net availability at March 31, 2021	$	1,584	$	700	$	300	$	2,584

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(a)No amounts have been drawn as of March 31, 2021 and the loan will terminate if nothing is drawn by April 30, 2021. Commitment fees are not material.

(b)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.