Asset Impairments (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Goodwill and Intangible Asset Impairment		$ 0.0	$ 207.6
Impairment of Intangible Assets, Finite-lived		0.5	38.1
Impairment of Long-Lived Assets Held-for-use		0.7	9.4
Asset Impairments Charges and Other PP&E Impairment	$ 0.0	1.2	255.1
Asset impairments	0.0	1.2	$ 253.6
Share Price			$ 17.96		$ 34.20	$ 95.64
Energy & Chemicals [Member]
Goodwill and Intangible Asset Impairment			$ 65.0
Impairment of Intangible Assets, Finite-lived			0.0
Impairment of Long-Lived Assets Held-for-use		3.8	3.8
Asset Impairments Charges and Other PP&E Impairment			68.8
Distribution & Storage [Member]
Goodwill and Intangible Asset Impairment		0.0	0.3
Impairment of Intangible Assets, Finite-lived		0.5	0.0
Impairment of Long-Lived Assets Held-for-use		0.7	1.7	[1]
Asset Impairments Charges and Other PP&E Impairment	$ 1.2	1.2	2.0
BioMedical [Member]
Goodwill and Intangible Asset Impairment			142.3
Impairment of Intangible Assets, Finite-lived			38.1
Impairment of Long-Lived Assets Held-for-use		3.9	3.9
Asset Impairments Charges and Other PP&E Impairment			184.3
Energy & Chemical and BioMedical [Member]
Impairment of Long-Lived Assets Held-for-use		$ 7.7
Customer Relationships [Member]
Impairment of Intangible Assets, Finite-lived			15.7
Unpatented Technology [Member]
Impairment of Intangible Assets, Finite-lived			22.4
Cost of Sales [Member]
Asset impairments			$ 1.5

[1] Asset impairments of $1.5 were included in cost of sales on the consolidated statement of operations for the year ended December 31, 2015.