Goodwill and Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 92.6	$ 91.5
Expected amortization expense, remainder of 2014	269
Expected amortization expense, 2015	351
Expected amortization expense, 2016	269
Expected amortization expense, 2017	224
Expected amortization expense, 2018	176
Impairment charges, in-process research and development		5.1
Acquired in-process research and development assets reclassified to amortizable intangible assets	$ 6.9	$ 6.5