Long Term Debt (Tables)

9 Months Ended

Sep. 30, 2011

Long-term Debt, Unclassified [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

In 2011, the Company remarketed or issued the following long-term debt:

(in Millions)

Company	Month Issued	Type	Interest Rate		Maturity	Amount
Detroit Edison	April	Tax-Exempt Revenue Bonds(1)(2)	2.35	%	2024	$	31
Detroit Edison	May	Mortgage Bonds(3)	3.90	%	2021	250
DTE Energy	May	Senior Notes(4)	Variable(5)		2013	300
Detroit Edison	September	Mortgage Bonds(6)	4.31	%	2023	102
Detroit Edison	September	Mortgage Bonds(6)	4.46	%	2026	77
Detroit Edison	September	Mortgage Bonds(6)	5.67	%	2041	46
Detroit Edison	September	Tax-Exempt Revenue Bonds(2)(7)	2.13	%	2030	82
Detroit Edison	September	Mortgage Bonds (8)	4.50	%	2041	140
						$	1,028

Schedule of Extinguishment of Debt [Table Text Block]

In 2011, the following debt was retired:

(in Millions)

Company	Month Retired	Type	Interest Rate		Maturity	Amount
Detroit Edison	May	Tax-Exempt Revenue Bonds	6.95	%	2011	$	26
DTE Energy	June	Senior Notes	7.05	%	2011	600
Detroit Edison	September	Tax-Exempt Revenue Bonds	5.55	%	2029	118
Detroit Edison	September	Tax-Exempt Revenue Bonds	5.65	%	2029	67
Detroit Edison	September	Tax-Exempt Revenue Bonds	5.65	%	2029	40
Detroit Edison	September	Tax-Exempt Revenue Bonds	5.45	%	2029	140
						$	991