Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Operating Revenues	$ 2,265	$ 2,139	$ 6,724	$ 6,384
Operating Expenses
Fuel, purchased power and gas	866	763	2,708	2,366
Operation and maintenance	670	649	1,948	1,898
Depreciation, depletion and amortization	259	271	752	775
Taxes other than income	79	69	239	231
Asset (gains) and losses, reserves and impairments, net	(8)	1	0	0
Total operating expenses	1,866	1,753	5,647	5,270
Operating Income	399	386	1,077	1,114
Other (Income) and Deductions
Interest expense	120	142	370	418
Interest income	(3)	(3)	(8)	(9)
Other income	(20)	(20)	(59)	(62)
Other expenses	16	9	31	32
Total Other (Income) and Deductions	113	128	334	379
Income Before Income Taxes	286	258	743	735
Income Tax Expense	101	92	180	252
Net Income	185	166	563	483
Less: Net Income Attributable to Noncontrolling Interests	2	3	2	5
Net Income Attributable to DTE Energy Company	$ 183	$ 163	$ 561	$ 478
Basic Earnings per Common Share
Net Income Attributable to DTE Energy Company	$ 1.08	$ 0.97	$ 3.31	$ 2.85
Diluted Earnings per Common Share
Net Income Attributable to DTE Energy Company	$ 1.07	$ 0.96	$ 3.30	$ 2.84
Weighted Average Common Shares Outstanding
Basic	169	169	169	168
Diluted	170	170	170	168
Dividends Declared per Common Share	$ 0.59	$ 0.56	$ 1.74	$ 1.62