Segments of Business (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting [Abstract]
Reporting Segments Number	3
Segment Reporting Information [Line Items]
Sales including intersegment sales	$ 4,046.2	$ 4,004.4	$ 4,071.4
Operating Profit and Pretax Profit:
Operating Income (Loss)	115.7	409.3	409.6
Goodwill and Intangible Asset Impairment	196.6	0.0	0.0
Interest expense	65.8	60.2	51.7
Other non-operating (income) expense, net	(2.8)	(1.8)	(6.0)
Income from continuing operations before income taxes	52.7	350.9	363.9
Total assets	3,699.9	3,715.7	3,489.8
Restructuring and other costs	70.5	28.6	12.1
Depreciation and amortization	169.8	162.1	158.1
Additions to property and equipment	188.5	208.3	219.4
Long-lived assets	$ 1,416.3	1,362.6	1,267.8
Segment Reporting, Disclosure of Major Customers	0.10
USPackaging [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	$ 352.5	400.0	391.8
Goodwill and Intangible Asset Impairment	0.0
Total assets	2,072.0	2,007.7	1,982.5
Restructuring and other costs	13.3	0.0	0.0
Depreciation and amortization	97.9	93.7	97.8
Additions to property and equipment	101.9	131.2	127.5
Latin America [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	30.0	50.0	60.9
Goodwill and Intangible Asset Impairment	196.6
Total assets	648.1	779.2	690.4
Restructuring and other costs	28.8	18.9	1.6
Depreciation and amortization	26.7	26.2	22.2
Additions to property and equipment	45.2	32.9	23.8
Rest of World [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	61.1	64.0	55.6
Goodwill and Intangible Asset Impairment	0.0
Total assets	784.5	706.1	601.1
Restructuring and other costs	2.7	7.7	7.8
Depreciation and amortization	30.2	27.9	25.5
Additions to property and equipment	35.0	36.8	55.6
Restructuring and acquisition-related costs [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	70.5	28.6	12.1
GeneralCorporateExpenses [Member]
Operating Profit and Pretax Profit:
Operating Income (Loss)	60.8	76.1	86.6
Unallocated amount to segment
Operating Profit and Pretax Profit:
Total assets	195.3	222.7	215.8
Restructuring and other costs	25.7	2.0	2.7
Depreciation and amortization	15.0	14.3	12.6
Additions to property and equipment	6.4	7.4	12.5
UNITED STATES
Segment Reporting Information [Line Items]
Sales including intersegment sales	2,826.0	2,820.3	2,937.8
Operating Profit and Pretax Profit:
Long-lived assets	957.4	949.2	897.4
BRAZIL
Segment Reporting Information [Line Items]
Sales including intersegment sales	482.1	483.5	442.5
Operating Profit and Pretax Profit:
Long-lived assets	223.6	212.9	173.1
Other Americas [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	250.6	244.6	273.5
Operating Profit and Pretax Profit:
Long-lived assets	51.9	44.1	53.1
Europe [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	290.0	263.5	233.9
Operating Profit and Pretax Profit:
Long-lived assets	93.3	75.1	68.6
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	197.5	192.5	183.7
Operating Profit and Pretax Profit:
Long-lived assets	90.1	81.3	75.6
Intersegment Eliminations [Member] | USPackaging [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	(40.0)	(25.7)	(25.3)
Intersegment Eliminations [Member] | Latin America [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	(3.8)	(3.9)	(3.8)
Intersegment Eliminations [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	(12.6)	(16.2)	(17.9)
Operating Segments [Member] | USPackaging [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	2,666.0	2,646.8	2,772.8
Operating Segments [Member] | Latin America [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	715.2	707.0	696.9
Operating Segments [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Sales including intersegment sales	$ 721.4	$ 696.4	$ 648.7