Fair Value Measurement (Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Change in the Fair Value of Contigent Consideration Receivable
Balance at January 1,	$ 37.8	$ 61.0
Gain/(loss) recognized in the income statement due to change in fair value during the period	10.8	(3.5)
Reclassification of amounts due from Noven to Other receivables within Other current assets	(10.0)	(9.2)
Foreign exchange translation recorded to other comprehensive income	(0.7)	4.8
Balance at June 30,	37.9	53.1
Change in the Fair Value of Contigent Consideration payable
Balance at January 1,	0	0
Initial recognition of contingent consideration payable	127.8	0
Loss recognized in the income statement (within Integration and acquisition costs) due to change in fair value during the period	2.1	0
Reclassification of amounts to Other current liabilities	(2.7)	0
Balance at June 30,	$ 127.2	$ 0