Balance Sheet Components (Other noncurrent liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Other Noncurrent Liabilities [Line Items]
Liability, Defined Benefit Pension Plan, Noncurrent	$ 876.4	$ 1,020.4
Contingent consideration liability	199.7	223.6	$ 250.7
Liability for Uncertainty in Income Taxes, Noncurrent	426.1	469.5
Operating Lease, Liability, Noncurrent	200.9	229.5
Restructuring Reserve, Noncurrent	64.3	134.8
Liabilities, Other than Long-term Debt, Noncurrent	232.9	505.8
Other Liabilities, Noncurrent	1,933.6	2,483.1
Other Noncurrent Liabilities
Schedule of Other Noncurrent Liabilities [Line Items]
Contingent consideration liability	$ 133.0	$ 123.1	$ 130.3