v2.4.0.6
Restructuring and Asset Impairment Charges Restructuring and Asset Impairment Charges (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Restructuring Cost and Impairment Charge        
Restructuring and asset impairment charges, net $ 4 $ 2 $ 4 $ 2
Water Infrastructure
       
Restructuring Cost and Impairment Charge        
Restructuring and asset impairment charges, net     $ 4  
Applied Water
       
Restructuring Cost and Impairment Charge        
Recognized asset impairment     2