Balance Sheet Components (Other noncurrent liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Other Noncurrent Liabilities [Line Items]
Employee benefit liabilities	$ 544.6	$ 876.4
Contingent consideration	375.0	199.7	$ 223.6
Tax related items, including contingencies	414.6	426.1
Operating lease liability	181.4	200.9
Accrued restructuring	60.4	64.3
Other	244.9	232.9
Other Liabilities, Noncurrent	1,756.5	1,933.6
Biocon Biologics
Schedule of Other Noncurrent Liabilities [Line Items]
Contingent consideration	221.2
Other Noncurrent Liabilities
Schedule of Other Noncurrent Liabilities [Line Items]
Contingent consideration	$ 310.6	$ 133.0	$ 123.1