New Accounting Pronouncements (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Other current assets, net	$ 128.0	$ 122.7
Other assets	237.3	216.6
Current portion of long-term debt and short-term borrowings	347.0	28.7
Long-term debt	$ 2,680.3	$ 2,908.7