Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Schedule of Effective Tax Rate and Unrecognized Tax Benefits

The effective tax rate and unrecognized tax benefits of the Registrants are as follows:

	Effective Tax Rate								Unrecognized Tax Benefits
	Three Months Ended September 30,				Nine Months Ended September 30,				September 30,
	2016		2015		2016		2015		2016
									(In millions)
DTE Energy	25	%	28	%	25	%	28	%	$	3
DTE Electric	35	%	35	%	36	%	35	%	$	4