Basis of Presentation Basis of Presentation (Details 2) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Termination Fee [Line Items]
Other Costs	$ 10.0	$ 0.8	$ 10.0	$ 1.9
termination fee paid to Amcor [Member]
Termination Fee [Line Items]
termination fee	130.0		130.0
termination fee paid to Bemis [Member]
Termination Fee [Line Items]
termination fee	$ 130.0		$ 130.0