Balance Sheet Components (Other Long-term Obligations) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Schedule of Other Noncurrent Liabilities [Line Items]
Employee benefit liabilities	$ 412.2	$ 408.9
Contingent consideration	213.2	250.7
Tax related items, including contingencies	137.3	109.6
Operating Lease, Liability, Noncurrent	156.9	175.7
Other	92.6	79.1
Other long-term obligations	900.9	960.8
Clean energy investments
Schedule of Other Noncurrent Liabilities [Line Items]
Other long-term obligations	13.5	57.2
Other long-term obligations
Schedule of Other Noncurrent Liabilities [Line Items]
Contingent consideration	$ 88.4	$ 130.3