Consumers Energy Company Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Revenue	$ 8,596	$ 7,329	$ 6,418
Operating Expenses
Operating Income	1,224	1,146	1,230
Other Income (Expense)
Non-operating retirement benefits, net	205	165	118
Other income	19	30	28
Other expense	(27)	(18)	(62)
Total other income	197	177	84
Interest Charges
Interest on long-term debt	509	481	483
Interest expense – related parties	12	12	12
Other interest expense	0	10	12
Allowance for borrowed funds used during construction	(2)	(3)	(2)
Total interest charges	519	500	505
Income Before Income Taxes	902	823	809
Income Tax Expense	93	95	115
Net Income Attributable to CMS Energy	837	1,353	755
Preferred Stock Dividends	10	5	0
Net income (loss) available to common stockholders	827	1,348	755
Consumers Energy Company
Operating Revenue	8,151	7,021	6,189
Operating Expenses
Fuel for electric generation	662	463	286
Purchased and interchange power	1,867	1,599	1,454
Purchased power – related parties	76	77	64
Cost of gas sold	1,243	726	568
Maintenance and other operating expenses	1,582	1,531	1,224
Depreciation and amortization	1,088	1,077	1,023
General taxes	400	373	349
Total operating expenses	6,918	5,846	4,968
Operating Income	1,233	1,175	1,221
Other Income (Expense)
Non-operating retirement benefits, net	195	155	112
Other income	17	23	19
Other expense	(25)	(18)	(43)
Total other income	187	160	88
Interest Charges
Interest on long-term debt	325	294	299
Interest expense – related parties	12	12	12
Other interest expense	0	8	11
Allowance for borrowed funds used during construction	(2)	(3)	(2)
Total interest charges	335	311	320
Income Before Income Taxes	1,085	1,024	989
Income Tax Expense	140	156	173
Net Income Attributable to CMS Energy	945	868	816
Preferred Stock Dividends	2	2	2
Net income (loss) available to common stockholders	$ 943	$ 866	$ 814