Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Operating Revenues	$ 2,595	$ 2,387	$ 9,223	$ 7,128
Operating Expenses
Fuel, purchased power and gas	1,119	967	4,550	2,931
Operation and maintenance	860	728	2,512	2,168
Depreciation and amortization	293	284	855	811
Taxes other than income	86	84	268	262
Asset (gains) and losses, reserves and impairments, net	(2)	(5)	(10)	(6)
Total operating expenses	2,356	2,058	8,175	6,166
Operating Income	239	329	1,048	962
Other (Income) and Deductions
Interest expense	107	106	323	327
Interest income	(2)	(2)	(7)	(7)
Other income	(55)	(58)	(136)	(148)
Other expenses	11	7	29	23
Total Other (Income) and Deductions	61	53	209	195
Income Before Income Taxes	178	276	839	767
Income Tax Expense	21	76	229	225
Net Income	157	200	610	542
Less: Net Income Attributable to Noncontrolling Interests	1	2	4	5
Net Income Attributable to DTE Energy Company	$ 156	$ 198	$ 606	$ 537
Basic Earnings per Common Share
Total Basic Earnings per Common Share	$ 0.88	$ 1.13	$ 3.42	$ 3.07
Diluted Earnings per Common Share
Total Diluted Earnings per Common Share	$ 0.88	$ 1.13	$ 3.42	$ 3.07
Weighted Average Common Shares Outstanding
Basic	177	175	177	174
Diluted	177	176	177	175
Dividends Declared per Common Share	$ 0.69	$ 0.66	$ 2.00	$ 1.93