Goodwill And Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Goodwill And Intangible Assets [Abstract]
Amortization expense	$ 87.8	$ 85.0
Expected amortization expense, remainder of 2012	262.0
Expected amortization expense, 2013	343.0
Expected amortization expense, 2014	336.0
Expected amortization expense, 2015	313.0
Expected amortization expense, 2016	246.0
Acquired in-process research and development assets to product rights and licenses	33.0
Product rights and license costs acquired	$ 70.0