Other Assets and Other Liabilities (Details 1) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Components of Other Liabilities reported on the consolidated balance sheets
Accrued operating lease expense	$ 19.3	$ 43.4
Pension and other post-retirement liabilities	94.6	86.6
Deferred gains on sale-leasebacks	44.8	49.0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	3.8	3.6
Environmental reserves	13.2	13.8
Deferred income	7.7	5.6
Derivatives	3.7	7.5
Other Liabilities, Noncurrent	33.5	36.6
Total	$ 220.6	$ 246.1