Balance Sheet Components (Other Current Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Schedule of other current liabilities [Line Items]
Other receivables	$ 376.3	$ 418.7
Legal and professional accruals, including litigation accruals	117.5	138.2
Payroll and employee benefit liabilities	503.2	467.1
Contingent consideration	213.2	250.7
Accrued interest	179.1	59.1
Restructuring	17.1	26.0
Fair value of financial instruments	17.1	12.9
Operating lease liability	68.5	76.7
Other	470.9	575.3
Other current liabilities	2,246.2	2,319.9
Clean energy investments
Schedule of other current liabilities [Line Items]
Other current liabilities	50.1	47.7
Prepaid expenses and other current assets
Schedule of other current liabilities [Line Items]
Contingent consideration	124.8	120.4
Variable Consideration
Schedule of other current liabilities [Line Items]
Other receivables	$ 697.9	$ 796.5