Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating Revenues
Utility operations	$ 1,656	$ 1,669	$ 4,937	$ 4,923
Non-utility operations	1,463	1,881	4,584	5,539
Operating Revenues	3,119	3,550	9,521	10,462
Operating Expenses
Fuel, purchased power, and gas — utility	400	453	1,342	1,440
Fuel, purchased power, and gas — non-utility	1,257	1,682	3,900	4,898
Operation and maintenance	588	604	1,739	1,721
Depreciation and amortization	322	273	923	826
Taxes other than income	101	99	311	307
Asset (gains) losses and impairments, net	1	10	14	8
Operating Expenses	2,669	3,121	8,229	9,200
Operating Income	450	429	1,292	1,262
Other (Income) and Deductions
Interest expense	162	142	468	412
Interest income	(4)	(3)	(11)	(9)
Non-operating retirement benefits, net	9	9	28	27
Other income	(98)	(99)	(259)	(262)
Other expenses	17	11	40	51
Other (Income) and Deductions	86	60	266	219
Income Before Income Taxes	364	369	1,026	1,043
Income Tax Expense	47	34	122	121
Net Income	317	335	904	922
Less: Net Income (Loss) Attributable to Noncontrolling Interests	(2)	1	2	(7)
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 319	$ 334	$ 902	$ 929
Basic Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 1.74	$ 1.84	$ 4.93	$ 5.13
Diluted Earnings per Common Share
Net Income Attributable to DTE Energy Company (in dollars per share)	$ 1.73	$ 1.84	$ 4.91	$ 5.13
Weighted Average Common Shares Outstanding
Basic (in shares)	183	182	183	181
Diluted (in shares)	184	182	184	181
DTE Electric
Operating Revenues
Utility operations	$ 1,519	$ 1,521	$ 3,944	$ 4,002
Operating Expenses
Fuel, purchased power, and gas — utility	399	438	1,067	1,163
Operation and maintenance	356	360	1,048	1,025
Depreciation and amortization	244	202	694	616
Taxes other than income	80	77	233	232
Asset (gains) losses and impairments, net	0	0	13	0
Operating Expenses	1,079	1,077	3,055	3,036
Operating Income	440	444	889	966
Other (Income) and Deductions
Interest expense	80	73	234	210
Interest income	0	0	(1)	0
Non-operating retirement benefits, net	0	(1)	0	(1)
Other income	(20)	(23)	(78)	(72)
Other expenses	14	9	34	49
Other (Income) and Deductions	74	58	189	186
Income Before Income Taxes	366	386	700	780
Income Tax Expense	59	81	113	172
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 307	$ 305	$ 587	$ 608