Short-Term Credit Arrangements and Borrowings (Tables)

6 Months Ended

Jun. 30, 2021

Short-term Debt [Abstract]

Schedule of Line of Credit Facilities

The availability under these facilities as of June 30, 2021 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 Canadian revolving credit facility, expiring May 2023	89		—		—		89
Secured revolving credit facility, expiring June 2026(b)	33		—		—		33
Unsecured letter of credit facility, expiring in February 2023	150		—		—		150
Unsecured letter of credit facility, expiring in August 2021	110		—		—		110
Unsecured letter of credit facility(c)	50		—		—		50
	1,932		500		300		2,732
Amounts outstanding at June 30, 2021
Revolver borrowings	69		—		—		69
Letters of credit	230		—		—		230
	299		—		—		299
Net availability at June 30, 2021	$	1,633	$	500	$	300	$	2,433

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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)For DT Midstream $750 million revolving credit facility, availability shown is limited to $33 million available to DTE Energy

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