Segments of Business (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)
Segment Reporting [Abstract]
Reporting Segments Number			2
Segment reporting information
Revenue	$ 1,018.3	$ 1,098.2	$ 3,088.7	$ 3,290.8
Operating Profit and Pretax Profit:
Operating Income (Loss)	105.8	107.3	312.4	309.2
Interest expense	12.6	14.0	38.5	47.9
Other non-operating (income) expense, net	(0.8)	(1.2)	(4.8)	(15.6)
Income from continuing operations before income taxes	94.0	94.5	278.7	276.9
USPackaging [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	100.0	95.3	298.3	288.1
GlobalPackaging [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	29.9	32.9	81.2	83.6
GlobalPackagingBeforeRestructuring [Member] [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	31.8	32.9	88.4	83.6
GlobalPackagingRestructuring [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	(1.9)	0.0	(7.2)	0.0
GeneralCorporateExpenses [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	(24.1)	(20.9)	(67.1)	(62.5)
Operating Segments [Member] | USPackaging [Member]
Segment reporting information
Revenue	696.7	725.0	2,111.8	2,203.0
Operating Segments [Member] | GlobalPackaging [Member]
Segment reporting information
Revenue	332.6	388.2	1,014.4	1,129.3
Intersegment Eliminations [Member] | USPackaging [Member]
Segment reporting information
Revenue	(6.5)	(8.3)	(19.9)	(22.3)
Intersegment Eliminations [Member] | GlobalPackaging [Member]
Segment reporting information
Revenue	$ (4.5)	$ (6.7)	$ (17.6)	$ (19.2)