Restructuring (Schedule Of Change In Balance Sheet Position Of Restructuring Reserves) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance	$ 32.3	$ 48.6
Provision/Charge	48.1	10.9
Provision/Reversal	(0.1)	(4.9)
Cash payments	(3.1)	(22.3)
Translation difference	1.8	0
Restructuring reserve, ending balance	79.0	32.3
Restructuring Employee-Related [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance	31.4	48.4
Provision/Charge	48.1	10.1
Provision/Reversal	(0.1)	(4.9)
Cash payments	(3.1)	(22.2)
Translation difference	1.8	0
Restructuring reserve, ending balance	78.1	31.4
Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance	0.9	0.2
Provision/Charge		0.8
Provision/Reversal
Cash payments		(0.1)
Translation difference	0
Restructuring reserve, ending balance	$ 0.9	$ 0.9