CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenue:
Net product sales	$ 1,564.1	$ 1,336.6	$ 2,993.4	$ 2,582.1
Collaborative agreements and other revenue	3.1	3.3	10.2	5.9
Royalty revenue	31.8	26.9	60.0	52.1
Total revenue	1,599.0	1,366.8	3,063.6	2,640.1
Expenses:
Cost of goods sold (excluding amortization of acquired intangible assets)	80.9	71.9	161.4	144.4
Research and development	458.1	447.2	910.5	809.2
Selling, general and administrative	418.1	323.0	787.1	648.8
Amortization of acquired intangible assets	65.7	44.1	131.4	85.9
Acquisition related (gains) charges and restructuring, net	12.5	39.3	45.7	28.2
Total costs and expenses	1,035.3	925.5	2,036.1	1,716.5
Operating income	563.7	441.3	1,027.5	923.6
Other income and (expense):
Interest and investment income, net	4.5	3.1	9.3	6.8
Interest (expense)	(19.6)	(11.4)	(37.5)	(22.8)
Other income (expense), net	9.2	7.7	6.9	7.1
Income before income taxes	557.8	440.7	1,006.2	914.7
Income tax provision	79.7	73.3	143.2	145.8
Net income	$ 478.1	$ 367.4	$ 863.0	$ 768.9
Net income per common share:
Basic (in dollars per share)	$ 1.15	$ 0.84	$ 2.07	$ 1.76
Diluted (in dollars per share)	$ 1.11	$ 0.82	$ 2.00	$ 1.72
Weighted average shares:
Basic (in shares)	414.1	436.7	416.0	437.5
Diluted (in shares)	429.3	445.4	431.0	447.1