Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Revenue	$ 2,083	$ 1,864
Operating Expenses
Fuel for electric generation	138	103
Purchased power – related parties	18	18
Maintenance and other operating expenses	323	315
Depreciation and amortization	340	316
General taxes	123	114
Total operating expenses	1,598	1,496
Operating Income	485	368
Other Income (Expense)
Interest income	1	1
Interest and dividend income – related parties	0	7
Allowance for equity funds used during construction	1	1
Income from equity method investees	2	3
Non-operating retirement benefits, net	41	31
Other income	1	0
Other expense	(2)	(4)
Total other income	44	39
Interest Charges
Interest on long-term debt	119	116
Interest expense – related parties	3	3
Other interest expense	15	19
Allowance for borrowed funds used during construction	(1)	(1)
Total interest charges	136	137
Income Before Income Taxes	393	270
Income Tax Expense	51	27
Net Income	342	243
Loss Attributable to Noncontrolling Interests	(7)	0
Net Income Available to Common Stockholders	$ 349	$ 243
Basic earnings per average common share (in dollars per share)	$ 1.21	$ 0.86
Diluted earnings per average common share (in dollars per share)	$ 1.21	$ 0.85
Consumers Energy Company
Operating Revenue	$ 1,937	$ 1,744
Operating Expenses
Fuel for electric generation	106	79
Purchased and interchange power	367	347
Purchased power – related parties	18	18
Cost of gas sold	278	270
Maintenance and other operating expenses	292	278
Depreciation and amortization	329	312
General taxes	118	111
Total operating expenses	1,508	1,415
Operating Income	429	329
Other Income (Expense)
Interest income	1	1
Interest and dividend income – related parties	1	1
Allowance for equity funds used during construction	1	1
Non-operating retirement benefits, net	38	29
Other income	1	0
Other expense	(2)	(3)
Total other income	40	29
Interest Charges
Interest on long-term debt	73	74
Interest expense – related parties	3	3
Other interest expense	2	3
Allowance for borrowed funds used during construction	(1)	(1)
Total interest charges	77	79
Income Before Income Taxes	392	279
Income Tax Expense	56	44
Net Income	336	235
Net Income Available to Common Stockholders	336	235
Purchased and interchange power
Operating Expenses
Cost of goods and services sold	377	357
Cost of gas sold
Operating Expenses
Cost of goods and services sold	$ 279	$ 273