Supplementary Data Other (Expense) Income, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Disposal Group, Not Discontinued Operation, Disposal Disclosures [Abstract]
Assets held for sale	$ 20.3
Liabilities held for sale	27.8
Other Income and Expenses [Abstract]
Losses on sales of businesses and investments	(16.3)	$ (0.1)
Other (expense) income, net	(0.8)	0.4
Total other (expense) income, net	$ (17.1)	$ 0.3