Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating Revenues
Utility operations	$ 1,417	$ 1,514	$ 3,281	$ 3,254
Non-utility operations	1,471	1,645	3,121	3,658
Operating Revenues	2,888	3,159	6,402	6,912
Operating Expenses
Fuel, purchased power, and gas — utility	360	434	942	987
Fuel, purchased power, and gas — non-utility	1,258	1,443	2,643	3,216
Operation and maintenance	560	583	1,151	1,117
Depreciation and amortization	305	272	601	553
Taxes other than income	92	97	210	208
Asset (gains) losses and impairments, net	13	1	13	(2)
Operating Expenses	2,588	2,830	5,560	6,079
Operating Income	300	329	842	833
Other (Income) and Deductions
Interest expense	154	135	306	270
Interest income	(3)	(3)	(7)	(6)
Non-operating retirement benefits, net	10	9	19	18
Other income	(73)	(82)	(161)	(163)
Other expenses	12	15	23	40
Other (Income) and Deductions	100	74	180	159
Income Before Income Taxes	200	255	662	674
Income Tax Expense	21	19	75	87
Net Income	179	236	587	587
Less: Net Income (Loss) Attributable to Noncontrolling Interests	(3)	2	4	(8)
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 182	$ 234	$ 583	$ 595
Basic Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 0.99	$ 1.29	$ 3.19	$ 3.29
Diluted Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 0.99	$ 1.29	$ 3.18	$ 3.29
Weighted Average Common Shares Outstanding
Basic (in shares)	183	181	183	180
Diluted (in shares)	184	181	183	180
DTE Electric
Operating Revenues
Utility operations	$ 1,190	$ 1,276	$ 2,425	$ 2,481
Operating Expenses
Fuel, purchased power, and gas — utility	322	386	668	725
Operation and maintenance	334	345	692	665
Depreciation and amortization	229	202	450	414
Taxes other than income	69	74	153	155
Asset (gains) losses and impairments, net	13	0	13	0
Operating Expenses	967	1,007	1,976	1,959
Operating Income	223	269	449	522
Other (Income) and Deductions
Interest expense	78	69	154	137
Interest income	0	0	(1)	0
Other income	(25)	(22)	(58)	(49)
Other expenses	12	15	20	40
Other (Income) and Deductions	65	62	115	128
Income Before Income Taxes	158	207	334	394
Income Tax Expense	25	44	54	91
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 133	$ 163	$ 280	$ 303