Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2024

Debt Disclosure [Abstract]

Schedule of Debt Issuances

Refer to the table below for debt issued through September 30, 2024:

Company	Month	Type	Interest Rate	Maturity Date	Amount
					(In millions)
DTE Energy	February	Senior Notes(a)	5.10%	2029	$	1,200
DTE Electric	February	Mortgage Bonds(b)	4.85%	2026	500
DTE Electric	February	Mortgage Bonds(b)	5.20%	2034	500
DTE Energy	May	Senior Notes (c)	5.85%	2034	850
DTE Energy	August	Senior Notes (d)	4.95%	2027	1,200
					$	4,250

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(a)Proceeds used for the repayment of short-term borrowings and for general corporate purposes.

(b)Proceeds used for the repayment of short-term borrowings, for capital expenditures, and for other general corporate purposes.

(c)Proceeds to be used for the repayment of a portion of the $675 million 2016 Series C 2.53% Senior Notes due October 1, 2024, for repayment of a portion of the $1.3 billion 2019 Series F 4.22% Senior Notes due November 1, 2024, and for general corporate purposes. Pending repayment of the 2016 Series C and 2019 Series F Senior Notes, proceeds of the notes were invested in short-term investments.

(d)Proceeds to be used for the repayment of a portion of the $1.3 billion 2019 Series F 4.22% Senior Notes due November 1, 2024 and for general corporate purposes. Pending repayment of the 2019 Series F Senior Notes, a portion of the proceeds of the notes were invested in cash equivalents.

Schedule of Debt Redemptions

Refer to the table below for debt redeemed through September 30, 2024:

Company	Month	Type	Interest Rate	Maturity Date	Amount
					(In millions)
DTE Electric	March	Mortgage Bonds	3.65%	2024	$	100
DTE Electric	June	Securitization Bonds	2.64%	2024	19
DTE Electric	September	Securitization Bonds	5.97%	2024	24
					$	143