Other Assets and Other Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Components of Other Assets reported on the consolidated balance sheets
Inventory	$ 55.2	$ 52.0
Office furniture, fixtures and other equipment, net of accumulated depreciation	31.8	34.1
Derivatives	12.7	11.5
Deferred financing costs	3.4	4.0
Prepaid items	14.3	12.4
Assets held for sale	106.0	7.0
Assets held for sale	4.2	6.0
Prepaid pension	0.7	0.0
Other	84.1	84.4
Total	$ 312.4	$ 211.4