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Subsequent events (Details) € in Millions, $ in Millions	Dec. 31, 2025 USD ($)	Dec. 31, 2025 EUR (€)	Oct. 03, 2025 counterparty	Sep. 29, 2025 USD ($)	Apr. 25, 2024 USD ($) counterparty	Apr. 25, 2024 EUR (€) counterparty
Minimum | Subsequent event | VI Business Integration Plan
Subsequent Event [Line Items]
Expected restructuring charges				$ 36
Expected cash outlays				12
Capital expenditures, expected cash outlays				5
Minimum | Subsequent event | VI Business Integration Plan | Special Termination Benefit And Other Restructuring
Subsequent Event [Line Items]
Expected restructuring charges				26
Minimum | Subsequent event | VI Business Integration Plan | Accelerated Depreciation And Other Costs
Subsequent Event [Line Items]
Expected restructuring charges				10
Maximum | Subsequent event | VI Business Integration Plan
Subsequent Event [Line Items]
Expected restructuring charges				44
Expected cash outlays				14
Capital expenditures, expected cash outlays				7
Maximum | Subsequent event | VI Business Integration Plan | Special Termination Benefit And Other Restructuring
Subsequent Event [Line Items]
Expected restructuring charges				31
Maximum | Subsequent event | VI Business Integration Plan | Accelerated Depreciation And Other Costs
Subsequent Event [Line Items]
Expected restructuring charges				$ 13
Cross Currency Interest Rate Contract, Expiring 2027 | Designated as hedging instrument
Subsequent Event [Line Items]
Derivative, number of counterparties | counterparty					5	5
Cross Currency Interest Rate Contract, Expiring 2027 | Designated as hedging instrument | Subsequent event
Subsequent Event [Line Items]
Derivative, number of counterparties | counterparty			5
Cross Currency Interest Rate Contract, Expiring 2027 | Designated as hedging instrument | Short
Subsequent Event [Line Items]
Total notional amount for all open foreign currency forward contracts					$ 250
Derivative, fixed interest rate					4.25%	4.25%
Cross Currency Interest Rate Contract, Expiring 2027 | Designated as hedging instrument | Long
Subsequent Event [Line Items]
Total notional amount for all open foreign currency forward contracts | €						€ 233.4
Derivative, fixed interest rate					2.44%	2.44%
Cross Currency Interest Rate Contract, Expiring 2026 | Designated as hedging instrument | Short | Subsequent event
Subsequent Event [Line Items]
Total notional amount for all open foreign currency forward contracts	$ 500
Derivative, fixed interest rate	4.63%	4.63%
Cross Currency Interest Rate Contract, Expiring 2026 | Designated as hedging instrument | Long | Subsequent event
Subsequent Event [Line Items]
Total notional amount for all open foreign currency forward contracts | €		€ 474.7
Derivative, fixed interest rate	2.77%	2.77%

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