Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Issued Debt

In 2018, the following debt was issued:

Company	Month	Type	Interest Rate	Maturity Date	Amount
					(In millions)
DTE Electric	May	Mortgage Bonds(a)	4.05%	2048	$	525
DTE Energy	August	Senior Notes(b)	3.70%	2023	600
DTE Gas	August	Mortgage Bonds(b)	3.81%	2028	195
DTE Gas	August	Mortgage Bonds(b)	4.14%	2048	125
					$	1,445

_______________________________________

(a) Bonds were issued as Green Bonds and the proceeds will be used to finance expenditures for solar and wind energy, payments under power purchase agreements for solar and wind energy, and energy optimization programs.

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

Schedule of Debt Redemptions

In 2018, the following debt was redeemed:

Company	Month	Type	Interest Rate	Maturity Date	Amount
					(In millions)
DTE Gas	April	Senior Notes	6.04%	2018	$	100
DTE Energy	Various	Other Long-Term Debt	Various	2018	5
					$	105