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Revenue (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Change in Contract with Customer, Asset [Abstract]    
Beginning balance $ 151 $ 125
Additions, net 101 91
Billings transferred to accounts receivable (97) (71)
Foreign currency and other (2) (8)
Opening balance from the acquisition of Evoqua 110  
Ending balance 137 263
Change in Contract with Customer, Liability [Abstract]    
Beginning balance 183 164
Additions, net 123 110
Revenue recognized from opening balance (99) (94)
Foreign currency and other (14) (12)
Opening balance from the acquisition of Evoqua 107  
Ending balance $ 168 $ 300