Balance Sheet Components (Other Current Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Schedule of other current liabilities [Line Items]
Other receivables	$ 312.4	$ 418.7
Legal and professional accruals, including litigation accruals	111.7	138.2
Payroll and employee benefit liabilities	426.0	467.1
Contingent consideration	223.2	250.7
Accrued interest	80.1	59.1
Restructuring	16.3	26.0
Fair value of financial instruments	30.1	12.9
Operating lease liability	68.2	76.7
Other	632.5	575.3
Other current liabilities	2,228.2	2,319.9
Clean energy investments
Schedule of other current liabilities [Line Items]
Other current liabilities	49.1	47.7
Prepaid expenses and other current assets
Schedule of other current liabilities [Line Items]
Contingent consideration	119.8	120.4
Variable Consideration
Schedule of other current liabilities [Line Items]
Other receivables	$ 694.4	$ 796.5