Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating Revenues
Utility operations	$ 2,234	$ 1,953
Non-utility operations	2,343	1,628
Operating Revenues	4,577	3,581
Operating Expenses
Fuel, purchased power, and gas — utility	700	544
Fuel, purchased power, gas, and other — non-utility	2,242	1,595
Operation and maintenance	596	567
Depreciation and amortization	358	327
Taxes other than income	123	115
Operating Expenses	4,019	3,148
Operating Income	558	433
Other (Income) and Deductions
Interest expense	154	155
Interest income	(8)	(4)
Non-operating retirement benefits, net	(3)	4
Other income	(8)	(43)
Other expenses	13	10
Other (Income) and Deductions	148	122
Income Before Income Taxes	410	311
Income Tax Expense (Benefit) (Note 2)	16	(6)
Net Income from Continuing Operations	394	317
Net Income from Discontinued Operations, Net of Taxes (Note 4)	0	80
Net Income	394	397
Less: Net Income (Loss) Attributable to Noncontrolling Interests
Continuing operations	0	(3)
Discontinued operations	0	3
Net Income Attributable to DTE Energy Company/DTE Electric Company	$ 394	$ 397
Basic Earnings per Common Share
Continuing operations (in dollars per share)	$ 2.03	$ 1.65
Discontinued operations (in dollars per share)	0	0.40
Basic Earnings per Common Share (in dollars per share)	2.03	2.05
Diluted Earnings per Common Share
Continuing operations (in dollars per share)	2.03	1.65
Discontinued operations (in dollars per share)	0	0.40
Diluted Earnings per Common Share (in dollars per share)	$ 2.03	$ 2.05
Weighted Average Common Shares Outstanding
Basic (in shares)	193	194
Diluted (in shares)	194	194