XML 23 R3.htm IDEA: XBRL DOCUMENT v3.20.1
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