Financial Instruments and Fair Value Measurement (Measurement Inputs) (Details) - Recurring basis - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Quoted Price in Active Markets for Identical Assets (Level 1)
Assets:
Available-for-sale securities	$ 994.8	$ 1,235.9
Forward currency contracts	0.0	0.0
Purchased currency options	0.0	0.0
Interest rate swaps	0.0	0.0
Total assets	994.8	1,235.9
Liabilities:
Contingent value rights	(63.2)	(51.9)
Written currency options	0.0	0.0
Other acquisition related contingent consideration	0.0	0.0
Total liabilities	(63.2)	(51.9)
Significant Other Observable Inputs (Level 2)
Assets:
Available-for-sale securities	345.2	435.7
Forward currency contracts	342.0	606.0
Purchased currency options	56.7	46.7
Interest rate swaps	153.6	52.5
Total assets	897.5	1,140.9
Liabilities:
Contingent value rights	0.0	0.0
Written currency options	(42.2)	(19.1)
Other acquisition related contingent consideration	0.0	0.0
Total liabilities	(42.2)	(19.1)
Significant Unobservable Inputs (Level 3)
Assets:
Available-for-sale securities	0.0	0.0
Forward currency contracts	0.0	0.0
Purchased currency options	0.0	0.0
Interest rate swaps	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Contingent value rights	0.0	0.0
Written currency options	0.0	0.0
Other acquisition related contingent consideration	(1,469.5)	(1,521.5)
Total liabilities	(1,469.5)	(1,521.5)
Fair Value
Assets:
Available-for-sale securities	1,340.0	1,671.6
Forward currency contracts	342.0	606.0
Purchased currency options	56.7	46.7
Interest rate swaps	153.6	52.5
Total assets	1,892.3	2,376.8
Liabilities:
Contingent value rights	(63.2)	(51.9)
Written currency options	(42.2)	(19.1)
Other acquisition related contingent consideration	(1,469.5)	(1,521.5)
Total liabilities	$ (1,574.9)	$ (1,592.5)