v3.25.4
Capital structure - Dividends (Details) - $ / shares
 12 Months Ended
Feb. 09, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Class of Stock [Line Items]        
Common share cash dividends declared (in dollars per share)   $ 1.88 $ 1.76 $ 1.76
Common share cash dividends paid (in dollars per share)   $ 1.88 $ 1.76 $ 1.76
Subsequent Event        
Class of Stock [Line Items]        
Common share cash dividends declared (in dollars per share) $ 0.50