Balance Sheet Components (Other Current Liabilities) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Schedule of other current liabilities [Line Items]
Other receivables	$ 639.4	$ 952.5
Legal and professional accruals, including litigation accruals	481.9	362.9
Payroll and employee benefit liabilities	675.9	828.2
Contingent consideration	209.2	223.6
Accrued interest	254.6	90.9
Restructuring	217.5	149.2
Operating lease liability	91.9	92.9
Other	1,753.2	1,973.2
Other current liabilities	4,845.8	4,960.7
Clean energy investments
Schedule of other current liabilities [Line Items]
Other current liabilities	39.5	47.5
Other Current Liabilities [Member]
Schedule of other current liabilities [Line Items]
Contingent consideration	85.7	100.5
Variable Consideration
Schedule of other current liabilities [Line Items]
Other receivables	$ 1,196.6	$ 1,211.8