Properties and Equipment Schedule (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Properties and Equipment
Properties and equipment, gross	$ 2,640.8	$ 2,494.5
Accumulated depreciation and amortization	(1,497.0)	(1,482.8)
Properties and equipment, net	1,143.8	1,011.7
Interest Costs Capitalized	7.5	3.2	$ 1.5
Depreciation and amortization	100.3	100.8	111.5
Property, Plant and Equipment [Member]
Properties and Equipment
Depreciation and amortization	78.4	80.9	$ 96.1
Land
Properties and Equipment
Properties and equipment, gross	29.5	28.4
Building [Member]
Properties and Equipment
Properties and equipment, gross	438.9	425.0
Information technology and equipment [Member]
Properties and Equipment
Properties and equipment, gross	131.3	142.9
Machinery, equipment and other
Properties and Equipment
Properties and equipment, gross	1,754.5	1,668.9
Projects under construction
Properties and Equipment
Properties and equipment, gross	$ 286.6	$ 229.3

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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