Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2013

Long-term Debt, Unclassified [Abstract]

Schedule of Issued Debt [Table Text Block]

Company	Month Issued	Type	Interest Rate		Maturity	Amount
						(In millions)
DTE Electric	March	Mortgage Bonds (a)	4.00	%	2043	$	375
						$	375

Schedule of Extinguishment of Debt [Table Text Block]

	Month	Type	Interest Rate		Maturity	Amount
						(In millions)
DTE Electric	March	Securitization Bonds	6.42	%	2013	$	88
DTE Electric	March	Tax Exempt Revenue Bonds (a)	5.30	%	2030	51
DTE Energy	Various	Other Long Term Debt	Various		2013	2
						$	141

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