Discontinued Operations - Major Classes of Assets and Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018
Assets
Total current assets held for sale	$ 0.0	$ 130.3
Total non-current assets held for sale	0.0	108.5
Liabilities
Total current liabilities held for sale	0.0	65.1
Total non-current liabilities held for sale	$ 0.0	13.8
Discontinued Operations, Held-for-sale
Assets
Cash and cash equivalents		24.4
Receivables, net		58.5
Inventories		40.7
Other current assets		6.7
Total current assets held for sale		130.3
Property, plant and equipment, net		59.9
Intangible assets, net		46.6
Other assets		2.0
Total non-current assets held for sale		108.5
Liabilities
Trade payables		36.1
Compensation and benefits		6.1
Other current liabilities		22.9
Total current liabilities held for sale		65.1
Deferred income taxes		7.3
Other liabilities		6.5
Total non-current liabilities held for sale		$ 13.8