Short-Term Credit Arrangements and Borrowings (Tables)

12 Months Ended

Dec. 31, 2022

Short-Term Debt [Abstract]

Schedule of Line of Credit Facilities

The availability under the facilities in place at December 31, 2022 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 December 31, 2022
Revolver borrowings	81		—		—		81
Commercial paper issuances	271		568		242		1,081
Letters of credit	340		—		—		340
	692		568		242		1,502
Net availability at December 31, 2022	$	1,464	$	232	$	58	$	1,754

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