Additional Balance Sheet & Cash Flow Information - Schedule of Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Other current liabilities
Contract liabilities	$ 171.8	$ 206.8
Operating lease liabilities	77.3	87.1
Foreign currency forward contracts	79.4	0.0
Upfront and milestones payable	51.5	32.5
Other	48.3	36.6
Total	$ 428.3	$ 363.0

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are due within one year or operating cycle, if longer, from the balance sheet date.

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Other Contract liabilities, Current

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