v3.26.3
Derivative instruments and hedge accounting - Schedule of offsetting derivative assets and liabilities (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Derivative assets    
Gross Amounts of Recognized Assets/Liabilities $ 39.9 $ 3.8
Gross Amounts Offset in the Statements of Financial Position 0.0 0.0
Net Amounts of Assets/Liabilities Presented in the Statements of Financial Position 39.9 3.8
Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments 0.0 (0.2)
Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received 0.0 0.0
Net Amount 39.9 3.6
Derivative liabilities    
Gross Amounts of Recognized Assets/Liabilities (49.0) (7.9)
Gross Amounts Offset in the Statements of Financial Position 0.0 0.0
Net Amounts of Assets/Liabilities Presented in the Statements of Financial Position (49.0) (7.9)
Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments 0.0 0.2
Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received 0.0 0.0
Net Amount (49.0) (7.7)
Interest rate swaps    
Derivative assets    
Gross Amounts of Recognized Assets/Liabilities 39.9 0.1
Gross Amounts Offset in the Statements of Financial Position 0.0 0.0
Net Amounts of Assets/Liabilities Presented in the Statements of Financial Position 39.9 0.1
Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments 0.0 0.0
Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received 0.0 0.0
Net Amount 39.9 0.1
Derivative liabilities    
Gross Amounts of Recognized Assets/Liabilities 0.0 (7.3)
Gross Amounts Offset in the Statements of Financial Position 0.0 0.0
Net Amounts of Assets/Liabilities Presented in the Statements of Financial Position 0.0 (7.3)
Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments 0.0 0.0
Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received 0.0 0.0
Net Amount 0.0 (7.3)
Foreign currency hedges    
Derivative assets    
Gross Amounts of Recognized Assets/Liabilities 0.0 3.7
Gross Amounts Offset in the Statements of Financial Position 0.0 0.0
Net Amounts of Assets/Liabilities Presented in the Statements of Financial Position 0.0 3.7
Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments 0.0 (0.2)
Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received 0.0 0.0
Net Amount 0.0 3.5
Derivative liabilities    
Gross Amounts of Recognized Assets/Liabilities (49.0) (0.6)
Gross Amounts Offset in the Statements of Financial Position 0.0 0.0
Net Amounts of Assets/Liabilities Presented in the Statements of Financial Position (49.0) (0.6)
Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments 0.0 0.2
Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received 0.0 0.0
Net Amount $ (49.0) $ (0.4)