Restructuring Initiatives (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended							87 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2007	Dec. 31, 2006	Dec. 31, 2005	Mar. 31, 2012
Other Restructuring Initiatives [Member] | Professional Fees [Member]
Restructuring charges and other costs	$ 3.0
Other Restructuring Initiatives [Member] | Employee-Related Costs [Member]
Restructuring charges and other costs	18.8
Other Restructuring Initiatives [Member] | Selling, General and Administrative Expenses [Member]
Restructuring charges and other costs	21.8
Other Restructuring Initiatives [Member] | Latin America [Member]
Restructuring charges and other costs	4.6
Other Restructuring Initiatives [Member] | North America [Member]
Restructuring charges and other costs recorded in period	0.8
Other Restructuring Initiatives [Member] | Central & Eastern Europe [Member]
Restructuring charges and other costs recorded in period	1.5
Other Restructuring Initiatives [Member] | Western Europe, Middle East & Africa [Member]
Restructuring charges and other costs recorded in period	1.6
Other Restructuring Initiatives [Member] | Asia Pacific [Member]
Restructuring charges and other costs recorded in period	0.7
Other Restructuring Initiatives [Member] | Corporate [Member]
Restructuring charges and other costs recorded in period	9.6
Restructuring Program 2005 [Member]
Expected total restructuring charges and other costs	520
Total restructuring charges recorded to date	526.1
Restructuring Program 2009 [Member]
Total restructuring charges recorded to date	261.4
Maximum [Member] | Restructuring Program 2009 [Member]
Expected total restructuring charges and other costs	310
Minimum [Member] | Restructuring Program 2009 [Member]
Expected total restructuring charges and other costs	300
2005 And 2009 Restructuring Programs [Member]
Restructuring charges and other costs recorded in period	5.5	14.7
Charges recorded to date	(1.1)		3.4	41.3	130.3	17.8	109.3	192.1	51.6	544.7
Gain on sale of land and building		5.5
2005 And 2009 Restructuring Programs [Member] | Professional Fees [Member]
Restructuring charges and other costs recorded in period	4.3	9.0
2005 And 2009 Restructuring Programs [Member] | Employee-Related Costs [Member]
Restructuring charges and other costs recorded in period	(1.1)	9.6
2005 And 2009 Restructuring Programs [Member] | Accelerated Depreciation [Member]
Restructuring charges and other costs recorded in period	2.3	1.6
2005 And 2009 Restructuring Programs [Member] | Selling, General and Administrative Expenses [Member]
Restructuring charges and other costs recorded in period	2.8	13.5
2005 And 2009 Restructuring Programs [Member] | Cost of Sales [Member]
Restructuring charges and other costs recorded in period	2.7	1.2
2005 And 2009 Restructuring Programs [Member] | Latin America [Member]
Charges recorded to date	0.1		2.1	13.6	19.2	1.9	14.9	34.6	3.5	89.9
2005 And 2009 Restructuring Programs [Member] | North America [Member]
Charges recorded to date	(0.9)		(1.1)	17.8	26.7	(1.1)	7.0	61.8	6.9	117.1
2005 And 2009 Restructuring Programs [Member] | Central & Eastern Europe [Member]
Charges recorded to date	0.2		1.0	0.3	25.1	1.7	4.7	6.9	1.0	40.9
2005 And 2009 Restructuring Programs [Member] | Western Europe, Middle East & Africa [Member]
Charges recorded to date	(0.5)		0.9	(1.1)	27.4	19.0	65.1	45.1	11.7	167.6
2005 And 2009 Restructuring Programs [Member] | Asia Pacific [Member]
Charges recorded to date	(0.1)		(0.3)	(0.3)	19.9	(0.7)	4.9	14.2	22.4	60.0
2005 And 2009 Restructuring Programs [Member] | Corporate [Member]
Charges recorded to date	$ 0.1		$ 0.8	$ 11.0	$ 12.0	$ (3.0)	$ 12.7	$ 29.5	$ 6.1	$ 69.2