Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Operating Revenues
Utility operations	$ 1,573	$ 1,748	$ 4,714	$ 4,847
Non-utility operations	1,672	1,180	4,622	2,909
Operating Revenues	3,245	2,928	9,336	7,756
Operating Expenses
Fuel, purchased power, and gas — utility	437	503	1,362	1,482
Fuel, purchased power, and gas — non-utility	1,469	1,034	3,897	2,527
Operation and maintenance	566	562	1,725	1,620
Depreciation and amortization	258	230	756	702
Taxes other than income	91	92	297	282
Asset (gains) losses and impairments, net	6	0	9	(1)
Operating Expenses	2,827	2,421	8,046	6,612
Operating Income	418	507	1,290	1,144
Other (Income) and Deductions
Interest expense	146	114	404	341
Interest income	(4)	(3)	(9)	(17)
Other income	(74)	(51)	(204)	(160)
Other expenses	13	12	26	27
Total Other (Income) and Deductions	81	72	217	191
Income Before Income Taxes	337	435	1,073	953
Income Tax Expense	74	110	241	243
Net Income	263	325	832	710
Less: Net Loss Attributable to Noncontrolling Interests	(7)	(13)	(15)	(27)
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 270	$ 338	$ 847	$ 737
Basic Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 1.51	$ 1.88	$ 4.72	$ 4.10
Diluted Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 1.51	$ 1.88	$ 4.72	$ 4.10
Weighted Average Common Shares Outstanding
Basic (in shares)	179	179	179	179
Diluted (in shares)	179	180	179	180
Dividends Declared per Common Share (in dollars per share)	$ 0.825	$ 0.77	$ 2.475	$ 2.23
DTE Electric
Operating Revenues
Utility operations	$ 1,434	$ 1,608	$ 3,827	$ 3,976
Operating Expenses
Fuel and purchased power — utility	428	495	1,097	1,191
Operation and maintenance	349	363	1,068	1,019
Depreciation and amortization	188	176	549	539
Taxes other than income	74	73	229	216
Operating Expenses	1,039	1,107	2,943	2,965
Operating Income	395	501	884	1,011
Other (Income) and Deductions
Interest expense	68	66	206	196
Interest income	0	0	0	(8)
Other income	(21)	(15)	(57)	(48)
Other expenses	11	9	23	22
Total Other (Income) and Deductions	58	60	172	162
Income Before Income Taxes	337	441	712	849
Income Tax Expense	118	156	249	302
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 219	$ 285	$ 463	$ 547