Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Schedule of Other Income

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
	(In millions)
Income from REF entities	$	29	$	25	$	56	$	48
Equity earnings of equity method investees	20		32		43		53
Gains from equity securities	7		1		24		1
Contract services	6		12		14		32
Allowance for equity funds used during construction	6		6		13		13
Other	5		6		11		16
	$	73	$	82	$	161	$	163

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
	(In millions)
Gains from equity securities allocated from DTE Energy	$	7	$	1	$	24	$	1
Contract services	8		13		16		33
Allowance for equity funds used during construction	6		4		12		9
Other	4		4		6		6
	$	25	$	22	$	58	$	49

Schedule of Effective Tax Rate

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

	Effective Tax Rate
	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
DTE Energy	11	%	7	%	11	%	13	%
DTE Electric	16	%	21	%	16	%	23	%