Balance Sheet Components (Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,947.6	$ 3,807.9
Accumulated depreciation	1,581.4	1,485.7
Property, plant and equipment, net	2,366.2	2,322.2
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,309.8	2,227.9
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,153.5	1,106.5
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	334.3	328.8
Land and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 150.0	$ 144.7