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Long-Term Debt (Tables)
3 Months Ended
Mar. 31, 2023
Debt Disclosure [Abstract]  
Schedule of Debt Issuances
In 2023, the following debt was issued:
CompanyMonthTypeInterest RateMaturity DateAmount
(In millions)
DTE ElectricMarch
Mortgage bonds(a)
5.20%2033$600 
DTE ElectricMarch
Mortgage bonds(a)
5.40%2053600 
DTE EnergyMarch
Term loan facility draw(b)
Variable2023200 
$1,400 
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(a)Proceeds used for the repayment of short-term borrowings, for capital expenditures, and for other general corporate purposes.
(b)Proceeds used for general corporate purposes.