v3.25.2
Acquisitions and Divestitures - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2025
USD ($)
Feb. 07, 2025
USD ($)
Jan. 31, 2025
USD ($)
employee
Dec. 10, 2024
USD ($)
Dec. 05, 2024
USD ($)
employee
Apr. 26, 2023
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Dec. 09, 2024
USD ($)
Business Combination [Line Items]                        
Payments to acquire productive assets                 $ 169 $ 147    
Payments for asset acquisition                 37 0    
Proceeds from sale of businesses, net of cash disposed                 50 11    
(Loss)/gain on sale of businesses             $ 0 $ (1) 10 4    
Payments to acquire equity method investments                 3 2    
Acquisition of business, net of cash acquired                 7 $ 5    
Goodwill             8,237   $ 8,237   $ 7,980  
Vacom Systems LLC                        
Business Combination [Line Items]                        
Payments to acquire productive assets $ 42                      
Payments for asset acquisition 37                      
Royalty on revenue, maximum $ 25                      
Royalty on revenue, period after acquisition 5 years                      
Royalty on revenue, percentage 5.00%                      
Vacom Systems LLC | Developed Technology Rights                        
Business Combination [Line Items]                        
Fair Value (in millions) $ 49                      
Useful life (in years) 15 years                      
Global Omnium Idrica S.L.                        
Business Combination [Line Items]                        
Ownership percentage, parent       61.00%                
Global Omnium Idrica S.L.                        
Business Combination [Line Items]                        
Ownership percentage in equity method investment           25.10%            
Payments to acquire equity method investments           $ 51            
Equity securities, FV-NI                       $ 193
Gain on remeasurement of previously held equity interest             $ 152          
Equity securities, FV-NI, cost       $ 41                
Disposed of by Sale | Evoqua Magneto                        
Business Combination [Line Items]                        
Proceeds from sale of businesses   $ 61                    
Proceeds from sale of businesses, net of cash disposed   48                    
(Loss)/gain on sale of businesses   $ 10                    
Simply Clean Air and Water, Inc                        
Business Combination [Line Items]                        
Cash paid     $ 7                  
Number of employees | employee     20                  
Global Omnium Idrica S.L.                        
Business Combination [Line Items]                        
Fair Value (in millions)       $ 165                
Useful life (in years)       10 years                
Cash paid       $ 154                
Percentage of ownership interest acquired       35.90%                
Acquisition of business, net of cash acquired       $ 150                
Consideration transferred       637                
Goodwill       522                
Goodwill, expected tax deductible amount       $ 0                
Heusser Water Solutions AG                        
Business Combination [Line Items]                        
Number of employees | employee         90              
Proceeds from sale of businesses, net of cash disposed         $ 35              
Consideration transferred         $ 40