v3.25.2
Revenue from contracts with customers - Additional Information (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Disaggregation Of Revenue [Line Items]    
Uncollected amounts receivable $ 71 $ 72
Contract with customer $ 52 $ 57
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-07-01 | Maximum    
Disaggregation Of Revenue [Line Items]    
Period of satisfaction of contract with customer 1 year