Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Revenues
Utility operations	$ 1,733	$ 1,864
Non-utility operations	1,289	1,650
Operating Revenues	3,022	3,514
Operating Expenses
Fuel, purchased power, and gas — utility	467	582
Fuel, purchased power, and gas — non-utility	968	1,385
Operation and maintenance	579	591
Depreciation and amortization	353	296
Taxes other than income	119	118
Asset (gains) losses and impairments, net	(10)	0
Operating Expenses	2,476	2,972
Operating Income	546	542
Other (Income) and Deductions
Interest expense	175	152
Interest income	(10)	(4)
Non-operating retirement benefits, net	9	9
Other income	(65)	(88)
Other expenses	46	11
Other (Income) and Deductions	155	80
Income Before Income Taxes	391	462
Income Tax Expense	49	54
Net Income	342	408
Less: Net Income Attributable to Noncontrolling Interests	2	7
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 340	$ 401
Basic Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 1.77	$ 2.20
Diluted Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 1.76	$ 2.19
Weighted Average Common Shares Outstanding
Basic (in shares)	192	182
Diluted (in shares)	192	183
DTE Electric
Operating Revenues
Utility operations	$ 1,212	$ 1,235
Operating Expenses
Fuel, purchased power, and gas — utility	297	346
Operation and maintenance	360	358
Depreciation and amortization	258	221
Taxes other than income	83	84
Operating Expenses	998	1,009
Operating Income	214	226
Other (Income) and Deductions
Interest expense	81	76
Interest income	(2)	(1)
Other income	(13)	(33)
Other expenses	41	8
Other (Income) and Deductions	107	50
Income Before Income Taxes	107	176
Income Tax Expense	13	29
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 94	$ 147