v3.25.2
Goodwill and Other Intangible Assets - Goodwill Rollforward (Details)
$ in Millions
6 Months Ended
Jun. 30, 2025
USD ($)
Changes in the carrying value of goodwill by operating segment  
Beginning balance $ 7,980
Foreign currency and other 257
Ending balance 8,237
Goodwill Adjustment Due To Segment Reallocation, Adjusted Balance  
Changes in the carrying value of goodwill by operating segment  
Beginning balance 7,980
Water Infrastructure  
Changes in the carrying value of goodwill by operating segment  
Foreign currency and other 90
Ending balance 2,188
Water Infrastructure | Goodwill Adjustment Due To Segment Reallocation, Adjusted Balance  
Changes in the carrying value of goodwill by operating segment  
Beginning balance 2,098
Applied Water  
Changes in the carrying value of goodwill by operating segment  
Foreign currency and other 20
Ending balance 904
Applied Water | Goodwill Adjustment Due To Segment Reallocation, Adjusted Balance  
Changes in the carrying value of goodwill by operating segment  
Beginning balance 884
Measurement and Control Solutions  
Changes in the carrying value of goodwill by operating segment  
Foreign currency and other 124
Ending balance 2,287
Measurement and Control Solutions | Goodwill Adjustment Due To Segment Reallocation, Adjusted Balance  
Changes in the carrying value of goodwill by operating segment  
Beginning balance 2,163
Water Solutions and Services  
Changes in the carrying value of goodwill by operating segment  
Foreign currency and other 23
Ending balance 2,858
Water Solutions and Services | Goodwill Adjustment Due To Segment Reallocation, Adjusted Balance  
Changes in the carrying value of goodwill by operating segment  
Beginning balance $ 2,835