Other Assets and Other Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Components of Other Assets reported on the consolidated balance sheets
Inventory	$ 51.3	$ 55.2
Office furniture, fixtures and other equipment, net of accumulated depreciation	27.9	31.8
Derivatives	16.4	12.8
Deferred financing costs	4.5	3.4
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent	1.1	0.7
Prepaid items	15.1	14.3
Loans Receivables Gross Carrying Amount	6.2	8.8
Assets held for sale	89.5	106.0
Assets held for sale	0.5	4.2
Other	84.6	84.0
Total	$ 297.1	$ 321.2