Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating Revenues	$ 2,984	$ 3,930
Operating Expenses
Fuel, purchased power and gas	1,398	2,155
Operation and maintenance	826	841
Depreciation and amortization	209	280
Taxes other than income	100	95
Asset (gains) losses and impairments, net	(10)	(1)
Total operating expenses	2,523	3,370
Operating Income	461	560
Other (Income) and Deductions
Interest expense	110	110
Interest income	(4)	(2)
Other income	(51)	(41)
Other expenses	10	8
Total Other (Income) and Deductions	65	75
Income Before Income Taxes	396	485
Income Tax Expense	122	158
Net Income	274	327
Less: Net Income Attributable to Noncontrolling Interests	1	1
Net Income Attributable to DTE Energy Company/DTE Electric	273	326
Basic Earnings per Common Share
Total Basic Earnings per Common Share (in dollars per share)	$ 1.53	$ 1.84
Diluted Earnings per Common Share
Total Diluted Earnings per Common Share (in dollars per share)	$ 1.53	$ 1.84
Weighted Average Common Shares Outstanding
Basic (in shares)	178	177
Diluted (in shares)	178	177
Dividends Declared per Common Share	$ 0.69	$ 0.66
DTE Electric
Operating Revenues	1,203	1,410
Operating Expenses
Fuel, purchased power and gas	390	498
Operation and maintenance	317	342
Depreciation and amortization	155	228
Taxes other than income	73	71
Total operating expenses	935	1,139
Operating Income	268	271
Other (Income) and Deductions
Interest expense	63	63
Other income	(15)	(13)
Other expenses	9	7
Total Other (Income) and Deductions	57	57
Income Before Income Taxes	211	214
Income Tax Expense	74	77
Net Income Attributable to DTE Energy Company/DTE Electric	$ 137	$ 137