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Fair value portion of other assets.

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Dispositions (Details Textual) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
Dispositions (Details Textual) $ in Millions	Apr. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jan. 31, 2022 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of equity interest in Samsung Bioepis			$ (1,505.4)	$ 0.0
Samsung Bioepis
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity, ownership interest		49.90%	49.90%
Samsung Bioepis \| Fair Value, Recurring
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other current assets, receivable		$ 790.8	$ 790.8
Other assets, receivable		$ 402.8	$ 402.8
Samsung Bioepis \| Payment Due At First Anniversary \| Discount rate \| Fair Value, Recurring
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Risk-adjusted discount rates		0.049	0.049
Samsung Bioepis \| Payment Due At Second Anniversary \| Discount rate \| Fair Value, Recurring
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Risk-adjusted discount rates		0.053	0.053
Samsung Bioepis
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of interest in joint venture	$ 1,000.0
Payables to divestiture of interest in joint venture					$ 1,300.0
Gain on sale of equity interest in Samsung Bioepis			$ 1,500.0
Cumulative translation loss			58.9
Gain on derivative used in net investment hedge			57.0
Gain (loss) on sale		$ 2.7	(4.0)
Additional milestone payment	$ 50.0
Contingent discount on common shares	5.00%
Discrete income tax expense (benefit)		$ 258.3	$ 258.3
Samsung Bioepis \| Payment Due At First Anniversary
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payables to divestiture of interest in joint venture					812.5
Samsung Bioepis \| Payment Due At Second Anniversary
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payables to divestiture of interest in joint venture					$ 437.5