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Balance Sheet Components (Property, Plant and Equipment) (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 5,615.7 $ 5,721.9
Accumulated depreciation 2,368.8 2,262.0
Property, plant and equipment, net 3,246.9 3,459.9
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 3,161.0 3,235.0
Buildings and improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 1,943.2 1,954.8
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 359.8 376.3
Land and improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 151.7 $ 155.8