Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2014

Long-term Debt, Unclassified [Abstract]

Schedule of Issued Debt [Table Text Block]

In 2014, the following debt was issued:

Company	Month	Type	Interest Rate	Maturity	Amount
					(In millions)
DTE Energy	May	Senior Notes (a)	3.50%	2024	$	350
DTE Electric	June	Mortgage Bonds (a)	3.77%	2026	100
DTE Electric	June	Mortgage Bonds (a)	4.60%	2044	150
					$	600

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

Schedule of Extinguishment of Debt [Table Text Block]

In 2014, the following debt was redeemed:

Company	Month	Type	Interest Rate	Maturity	Amount
					(In millions)
DTE Electric	March	Mortgage Bonds	Various	2014	$	13
DTE Electric	March	Securitization Bonds	6.62%	2014	100
DTE Electric	April	Tax Exempt Revenue Bonds (a)	2.35%	2024	31
DTE Electric	April	Tax Exempt Revenue Bonds (a)	4.65%	2028	32
DTE Gas	May	Mortgage Bonds	8.25%	2014	80
DTE Energy	May	Senior Notes	7.625%	2014	300
DTE Electric	June	Tax Exempt Revenue Bonds (a)	4.875%	2029	36
DTE Electric	June	Tax Exempt Revenue Bonds (a)	6.00%	2036	69
DTE Energy	Various	Other Long Term Debt	Various	2014	3
					$	664

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