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Restructuring Charges (Restructuring Charges) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Restructuring Cost and Impairment Charge        
Severance and other charges $ 17 $ 3 $ 52 $ 9
Asset impairment 3 0 3 0
Reversal of restructuring accruals 0 0 (1) 0
Total restructuring costs 20 3 54 9
Asset impairment charges 1 12 3 13
Total restructuring and asset impairment charges 21 15 57 22
Corporate and other        
Restructuring Cost and Impairment Charge        
Total restructuring costs 11 0 33 0
Water Infrastructure | Operating Segments        
Restructuring Cost and Impairment Charge        
Total restructuring costs 1 2 4 4
Applied Water | Operating Segments        
Restructuring Cost and Impairment Charge        
Total restructuring costs 5 0 6 1
Measurement & Control Solutions | Operating Segments        
Restructuring Cost and Impairment Charge        
Total restructuring costs 4 13 10 17
Integrated Solutions & Services | Operating Segments        
Restructuring Cost and Impairment Charge        
Total restructuring costs $ 0 $ 0 $ 4 $ 0