|
Consolidated Statements Of Comprehensive Income (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
|
| Net income | $ 149 | $ 140 | $ 317 | $ 376 |
| Income attributable to noncontrolling interests | 1 | 1 | 2 | 2 |
| Net income attributable to CMS Energy | 148 | 139 | 315 | 374 |
| Retirement benefits liability adjustments, net of tax | 1 | 3 | 1 | |
| Unrealized gain (loss) on investments, net of tax | 1 | (2) | 3 | (1) |
| Other Comprehensive Income | 2 | (2) | 6 | |
| Total Comprehensive Income | 150 | 137 | 321 | 374 |
|
Consumers Energy Company [Member]
|
||||
| Net income | 163 | 155 | 361 | 400 |
| Retirement benefits liability adjustments, net of tax | 1 | 2 | 1 | |
| Unrealized gain (loss) on investments, net of tax | (1) | |||
| Other Comprehensive Income | 1 | 2 | ||
| Total Comprehensive Income | $ 164 | $ 155 | $ 363 | $ 400 |