v2.3.0.15
Comprehensive Income (Loss) (Details) (USD $)
In Millions
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Comprehensive income (loss) table [Abstract]    
Net income (loss)$ 190$ 217$ (176)$ 55
Gain on cash flow hedges(74)65(60)95
Reclassification adjustment for cash flow hedges realized in net loss(20)(12)2410
Foreign currency translation gain(4) (4) 
Income tax (expense) benefit34418(5)
Comprehensive income (loss)126274(198)155
Add: Comprehensive (income) loss attributable to noncontrolling interest  (1) 
Comprehensive income (loss) attributable to Calpine$ 126$ 274$ (199)$ 155