Restructuring (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			3 Months Ended					3 Months Ended
	Mar. 31, 2014 Employee Severence and Other Benefit Related Costs [Member]	Mar. 31, 2014 June 2013 Restructuring [Member]	Dec. 31, 2013 June 2013 Restructuring [Member]	Mar. 31, 2014 June 2013 Restructuring [Member] Corporate unallocated [Member]	Mar. 31, 2014 June 2013 Restructuring [Member] Devices [Member]	Mar. 31, 2013 2013 and Early 2014 Restructuring [Member]	Mar. 31, 2014 2013 and Early 2014 Restructuring [Member]	Dec. 31, 2013 2013 and Early 2014 Restructuring [Member]	Mar. 31, 2013 2013 and Early 2014 Restructuring [Member] Lease Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Expected positions eliminated (percent)		15.00%
Restructuring reserve		$ 5.2	$ 12.3				$ 12.7	$ 16.1
Expected restructuring costs in future period		1.0		0.2	0.8
Restructuring expenses	$ 4.3					$ 9.3			$ 7.8