Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Operating Revenues	$ 2,268	$ 2,698	$ 5,252	$ 6,628
Operating Expenses
Fuel, purchased power and gas	942	1,276	2,340	3,431
Operation and maintenance	793	811	1,619	1,652
Depreciation and amortization	220	282	429	562
Taxes other than income	91	87	191	182
Asset (gains) losses and impairments, net	18	(7)	8	(8)
Total operating expenses	2,064	2,449	4,587	5,819
Operating Income	204	249	665	809
Other (Income) and Deductions
Interest expense	115	106	225	216
Interest income	(2)	(3)	(6)	(5)
Other income	(49)	(40)	(100)	(81)
Other expenses	9	10	19	18
Total Other (Income) and Deductions	73	73	138	148
Income Before Income Taxes	131	176	527	661
Income Tax Expense	26	50	148	208
Net Income	105	126	379	453
Less: Net Income (Loss) Attributable to Noncontrolling Interests	(4)	2	(3)	3
Net Income Attributable to DTE Energy Company/DTE Electric	$ 109	$ 124	$ 382	$ 450
Basic Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 0.61	$ 0.70	$ 2.13	$ 2.54
Diluted Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 0.61	$ 0.70	$ 2.13	$ 2.54
Weighted Average Common Shares Outstanding
Basic (in shares)	179	177	179	177
Diluted (in shares)	179	177	179	177
Dividends Declared per Common Share	$ 0.69	$ 0.66	$ 1.38	$ 1.31
DTE Electric
Operating Revenues	$ 1,147	$ 1,281	$ 2,350	$ 2,691
Operating Expenses
Fuel, purchased power and gas	381	400	771	898
Operation and maintenance	319	329	636	671
Depreciation and amortization	165	229	320	457
Taxes other than income	68	65	141	136
Asset (gains) losses and impairments, net	0	(1)	0	(1)
Total operating expenses	933	1,022	1,868	2,161
Operating Income	214	259	482	530
Other (Income) and Deductions
Interest expense	67	61	130	124
Other income	(13)	(17)	(28)	(30)
Other expenses	8	8	17	15
Total Other (Income) and Deductions	62	52	119	109
Income Before Income Taxes	152	207	363	421
Income Tax Expense	53	77	127	154
Net Income Attributable to DTE Energy Company/DTE Electric	$ 99	$ 130	$ 236	$ 267