Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2018

The following is a summary of DTE Energy's Other income:



	Three Months Ended March 31,
	2018		2017
	(In millions)
Income from REF entities	$	23	$	18
Equity earnings of equity method investees	21		26
Contract services	20		4
Allowance for equity funds used during construction	7		7
Gains from equity securities	—		8
Other	10		1
	$	81	$	64

The following is a summary of DTE Electric's Other income:



	Three Months Ended March 31,
	2018		2017
	(In millions)
Contract services	$	20	$	4
Allowance for equity funds used during construction	5		6
Gains from equity securities allocated from DTE Energy	—		8
Other	2		1
	$	27	$	19

Schedule of Effective Tax Rate

The interim effective tax rate of the Registrants are as follows:



	Effective Tax Rate
	Three Months Ended March 31,
	2018		2017
DTE Energy	16	%	22	%
DTE Electric	25	%	35	%

Schedule of Cash and Cash Equivalents

The following is a table that provides a reconciliation of DTE Energy's Cash and cash equivalents as well as Restricted cash reported within the Consolidated Statements of Financial Position that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows:



	Three Months Ended March 31,
	2018		2017
	(In millions)
Cash and cash equivalents	$	164	$	82
Restricted cash	22		20
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows	$	186	$	102

Schedule of Cash and Restricted Cash



	Three Months Ended March 31,
	2018		2017
	(In millions)
Cash and cash equivalents	$	164	$	82
Restricted cash	22		20
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows	$	186	$	102