Consumers Energy Company Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net Income	$ 204	$ 353
Retirement Benefits Liability
Amortization of net actuarial loss, net of tax	0	1
Other Comprehensive Income	1	5
Comprehensive Income Attributable to CMS Energy	205	358
Consumers Energy Company
Net Income	232	383
Retirement Benefits Liability
Amortization of net actuarial loss, net of tax	0	1
Other Comprehensive Income	0	1
Comprehensive Income Attributable to CMS Energy	$ 232	$ 384