Balance Sheet Components (Other Current Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of other current liabilities [Line Items]
Other receivables	$ 492.0	$ 952.5
Employee-related Liabilities, Current	741.9	828.2
Estimated Litigation Liability, Current	715.6	362.9
Contingent consideration liability	199.7	223.6	$ 250.7
Restructuring Reserve, Current	233.5	149.2
Accrued interest	86.6	90.9
Liability derivatives, fair value	61.0	103.6
Operating Lease, Liability, Current	86.7	92.9
Other Accrued Liabilities, Current	1,254.6	1,973.2
Other current liabilities	4,619.6	4,960.7
Variable Consideration [Member]
Schedule of other current liabilities [Line Items]
Other receivables	1,362.1	1,211.8
Clean energy investments
Schedule of other current liabilities [Line Items]
Other liabilities	10.9	47.5
Other current liabilities
Schedule of other current liabilities [Line Items]
Contingent consideration liability	$ 66.7	$ 100.5	$ 120.4