Restructuring (Details) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Restructuring Reserve Disclosures [Line Items]
Restructuring and Related Cost Number of Planned Closure Facilities		4
Restructuring Charges		$ 17.6
Restructuring Reserve Settled		(4.8)
Restructuring Reserve, Translation and Other Adjustment		0.4
Restructuring Reserve	$ 13.2	13.2
Employee Related Costs [Member]
Restructuring Reserve Disclosures [Line Items]
Restructuring Charges		14.8
Restructuring Reserve Settled		(3.2)
Restructuring Reserve, Translation and Other Adjustment		0.4
Restructuring Reserve	12.0	12.0
Fixed Asset Related Expenses [Member]
Restructuring Reserve Disclosures [Line Items]
Restructuring Charges		1.0
Restructuring Reserve Settled		(1.0)
Restructuring Reserve, Translation and Other Adjustment		0.0
Restructuring Reserve	0.0	0.0
Restructuring and Related Cost, Expected Cost	3.0	3.0
Other Costs [Member]
Restructuring Reserve Disclosures [Line Items]
Restructuring Charges		1.8
Restructuring Reserve Settled		(0.6)
Restructuring Reserve, Translation and Other Adjustment		0.0
Restructuring Reserve	1.2	1.2
GlobalPackaging [Member]
Restructuring Reserve Disclosures [Line Items]
Restructuring Charges	4.3	17.6
Minimum [Member]
Restructuring Reserve Disclosures [Line Items]
Payments for Restructuring			$ 12.0
Restructuring and Related Cost, Expected Cost	28.0	28.0
Minimum [Member] | Employee Related Costs [Member]
Restructuring Reserve Disclosures [Line Items]
Restructuring and Related Cost, Expected Cost	15.0	15.0
Maximum [Member]
Restructuring Reserve Disclosures [Line Items]
Payments for Restructuring			$ 13.0
Restructuring and Related Cost, Expected Cost	30.0	30.0
Maximum [Member] | Employee Related Costs [Member]
Restructuring Reserve Disclosures [Line Items]
Restructuring and Related Cost, Expected Cost	$ 16.0	$ 16.0