Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Accrued Liabilities, Current [Abstract]
Accrued interest	$ 96.0	$ 97.4
Compensation and benefits	134.6	80.1
Deferred revenue	58.8	47.5
Taxes, other than income	25.2	28.0
Legal accruals	8.1	26.5
Other	131.5	164.3
Total Accrued Liabilities	$ 454.2	$ 443.8