Supplementary Quarterly Financial Information (Unaudited)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Supplementary Quarterly Financial Information (Unaudited)

SUPPLEMENTARY QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

DTE Energy

Quarterly earnings per share may not equal full year totals, since quarterly computations are based on weighted average common shares outstanding during each quarter.

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year
	(In millions, except per share amounts)
2017
Operating Revenues	$	3,236	$	2,855	$	3,245	$	3,271	$	12,607
Operating Income	$	569	$	303	$	418	$	356	$	1,646
Net Income Attributable to DTE Energy Company(a)	$	400	$	177	$	270	$	287	$	1,134
Basic Earnings per Share	$	2.23	$	0.99	$	1.51	$	1.60	$	6.32
Diluted Earnings per Share	$	2.23	$	0.99	$	1.51	$	1.60	$	6.32
2016
Operating Revenues	$	2,566	$	2,262	$	2,928	$	2,874	$	10,630
Operating Income	$	381	$	256	$	507	$	301	$	1,445
Net Income Attributable to DTE Energy Company	$	247	$	152	$	338	$	131	$	868
Basic Earnings per Share	$	1.38	$	0.84	$	1.88	$	0.73	$	4.84
Diluted Earnings per Share	$	1.37	$	0.84	$	1.88	$	0.73	$	4.83

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(a) Includes a net Income Tax Benefit of $(105) million related to the enactment of the TCJA in the fourth quarter.

DTE Electric

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year
	(In millions)
2017
Operating Revenues	$	1,175	$	1,218	$	1,434	$	1,275	$	5,102
Operating Income	$	217	$	272	$	395	$	281	$	1,165
Net Income	$	106	$	138	$	219	$	138	$	601
2016
Operating Revenues	$	1,153	$	1,215	$	1,608	$	1,249	$	5,225
Operating Income	$	245	$	265	$	501	$	193	$	1,204
Net Income	$	127	$	135	$	285	$	75	$	622