Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net income	$ 243	$ 213
Retirement Benefits Liability
Amortization of net actuarial loss, net of tax of $1 and $-	1	1
Amortization of prior service credit	0	(1)
Derivatives
Unrealized loss on derivative instruments, net of tax of $(1) and $-	(4)	(1)
Other Comprehensive Loss	(3)	(1)
Comprehensive Income	240	212
Consumers Energy Company
Net income	235	226
Retirement Benefits Liability
Amortization of net actuarial loss, net of tax of $1 and $-	0	0
Derivatives
Other Comprehensive Loss	0	0
Comprehensive Income	$ 235	$ 226