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Restructuring and Asset Impairment Charges	9 Months Ended
Restructuring and Asset Impairment Charges	Sep. 30, 2012
Restructuring Costs and Asset Impairment [Abstract]
Restructuring, Impairment, and Other Activities Disclosure	Restructuring and Asset Impairment Charges During the three and nine months ended September 30, 2012, we recognized restructuring and asset impairment charges of $4 million. This charge primarily relates to restructuring related severance payments for manufacturing reductions in force initiatives within our Water Infrastructure segment. There were no restructuring charges recognized during the three and nine months ended September 30, 2011. During the three and nine months ended September 30, 2011, we recognized an asset impairment of $2 million related to a facility within our Applied Water segment.