Short-Term Credit Arrangements and Borrowings (Tables)

12 Months Ended

Dec. 31, 2023

Short-Term Debt [Abstract]

Schedule of Line of Credit Facilities

The availability under the facilities in place at December 31, 2023 is shown in the following table:

	DTE Energy		DTE Electric		DTE Gas		Total
	(In millions)
Unsecured revolving credit facility, expiring October 2028	$	1,500	$	800	$	300	$	2,600
Unsecured letter of credit facility, expiring June 2024	175		—		—		175
Unsecured letter of credit facility, expiring February 2025	150		—		—		150
Unsecured letter of credit facilities(a)	150		—		—		150
Unsecured letter of credit facility(b)	—		100		—		100
	1,975		900		300		3,175
Amounts outstanding at December 31, 2023
Commercial paper issuances	821		385		77		1,283
Letters of credit	115		44		—		159
	936		429		77		1,442
Net availability at December 31, 2023	$	1,039	$	471	$	223	$	1,733

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(a)Uncommitted letter of credit facilities with automatic renewal provision and therefore no expiration.

(b)Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. DTE Energy may also utilize availability under this facility.