Short-Term Credit Arrangements and Borrowings (Tables)

6 Months Ended

Jun. 30, 2022

Short-Term Debt [Abstract]

Schedule of Line of Credit Facilities

The availability under these facilities as of June 30, 2022 is shown in the following table:

	DTE Energy		DTE Electric		DTE Gas		Total
	(In millions)
Unsecured revolving credit facility, expiring April 2026	$	1,500	$	500	$	300	$	2,300
Unsecured Canadian revolving credit facility, expiring May 2023	85		—		—		85
Unsecured letter of credit facility, expiring February 2023	150		—		—		150
Unsecured letter of credit facility, expiring June 2023	375		—		—		375
Unsecured letter of credit facility(a)	50		—		—		50
	2,160		500		300		2,960
Amounts outstanding at June 30, 2022
Revolver borrowings	85		—		—		85
Commercial paper issuances	366		364		—		730
Letters of credit	272		—		—		272
	723		364		—		1,087
Net availability at June 30, 2022	$	1,437	$	136	$	300	$	1,873

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