LONG-TERM DEBT

Long-Term Debt

DTE Energy's long-term debt outstanding and weighted average interest rates (a) of debt outstanding at December 31 were:



	2015			2014
	(In millions)
Mortgage bonds, notes, and other
DTE Energy Debt, Unsecured
4.4% due 2016 to 2033	$	1,947		$	1,647
DTE Electric Taxable Debt, Principally Secured
4.4% due 2016 to 2045	5,314			4,824
DTE Electric Tax-Exempt Revenue Bonds (b)
5.2% due 2020 to 2030	310			330
DTE Gas Taxable Debt, Principally Secured
4.9% due 2018 to 2045	1,124			1,099
Other Long-Term Debt, Including Non-Recourse Debt	110			121
DTE Energy Total Long-Term Debt	8,805			8,021
Less amount due within one year for DTE Energy	(465		)	(161		)
	$	8,340		$	7,860
DTE Electric Securitization Bonds
6.6% due 2015	$	—		$	105
Less amount due within one year	—			(105		)
	$	—		$	—
DTE Energy Junior Subordinated Debentures
6.5% due 2061	$	280		$	280
5.25% due 2062	200			200
	$	480		$	480

DTE Electric's long-term debt outstanding and weighted average interest rates (a) of debt outstanding at December 31 were:



	2015			2014
	(In millions)
Mortgage bonds, notes, and other
DTE Electric Taxable Debt, Principally Secured
4.4% due 2016 to 2045	$	5,314		$	4,824
DTE Electric Tax-Exempt Revenue Bonds (b)
5.2% due 2020 to 2030	310			330
DTE Electric Total Long-Term Debt	5,624			5,154
Less amount due within one year for DTE Electric	(151		)	(10		)
	$	5,473		$	5,144
DTE Electric Securitization Bonds
6.6% due 2015	$	—		$	105
Less amount due within one year	—			(105		)
	$	—		$	—

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(a)	Weighted average interest rates as of December 31, 2015 are shown below the description of each category of debt.


(b)	DTE Electric Tax-Exempt Revenue Bonds are issued by a public body that loans the proceeds to DTE Electric on terms substantially mirroring the Revenue Bonds.

Debt Issuances

In 2015, the following debt was issued:



Company	Month	Type	Interest Rate	Maturity	Amount
					(In millions)
DTE Electric	March	Mortgage Bonds (a)	3.70%	2045	$	500
DTE Energy	June	Senior Notes (b)	3.30%	2022	300
DTE Gas	August	Mortgage Bonds (c)	3.35%	2027	40
DTE Gas	August	Mortgage Bonds (c)	4.21%	2045	125
					$	965

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(a)	Proceeds were used for the redemption of long-term debt, repayment of short-term borrowings, and general corporate purposes.


(b)	Proceeds were used for general corporate purposes.


(c)	Proceeds were used for the redemption of long-term debt and general corporate purposes.

Debt Redemptions

In 2015, the following debt was redeemed:



Company	Month	Type	Interest Rate	Maturity	Amount
					(In millions)
DTE Electric	March	Securitization Bonds	6.62%	2015	$	105
DTE Electric	March	Mortgage Bonds	7.904%	2016	10
DTE Gas	September	Senior Notes	5.94%	2015	140
DTE Electric	December	Tax-Exempt Revenue Bonds	5.00%	2015	20
DTE Energy	Various	Other Long-Term Debt	Various	2015	11
					$	286

The following table shows the Registrants' scheduled debt maturities, excluding any unamortized discount or premium on debt:



	2016		2017		2018		2019		2020		2021 and Thereafter		Total
	(In millions)
DTE Energy (a)	$	465	$	9	$	407	$	427	$	688	$	7,304	$	9,300
DTE Electric	$	151	$	—	$	300	$	—	$	632	$	4,552	$	5,635

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(a)	Amounts include DTE Electric's scheduled debt maturities.

Junior Subordinated Debentures

At December 31, 2015, DTE Energy had $280 million of 6.5% Junior Subordinated Debentures due 2061 and $200 million of 5.25% Junior Subordinated Debentures due 2062. DTE Energy has the right to defer interest payments on the debt securities. Should DTE Energy exercise this right, it cannot declare or pay dividends on, or redeem, purchase or acquire, any of its capital stock during the deferral period. Any deferred interest payments will bear additional interest at the rate associated with the related debt issue. As of December 31, 2015, no interest payments have been deferred on the debt securities.

Cross Default Provisions

Substantially all of the net utility properties of DTE Electric and DTE Gas are subject to the lien of mortgages. Should DTE Electric or DTE Gas fail to timely pay their indebtedness under these mortgages, such failure may create cross defaults in the indebtedness of DTE Energy.