v3.26.1
Debt and lines of credit - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Debt Instrument [Line Items]    
Commercial paper $ 0  
Interest and debt expense 141,000,000 $ 128,000,000
Interest costs capitalized 3,000,000 $ 4,000,000
Revolving credit facility    
Debt Instrument [Line Items]    
Line of credit facility, maximum borrowing capacity $ 1,000,000,000