Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Consolidated Statements of Operations [Abstract]
Revenue	$ 24,286.5	$ 23,076.0	$ 21,836.0
Cost of sales	5,067.9	4,366.2	4,247.0
Research and development	5,020.8	4,884.2	4,326.5
Marketing, selling, and administrative	7,879.9	7,053.4	6,892.5
Acquired in-process research and development	388.0	50.0	90.0
Asset impairments, restructuring, and other special charges	401.4	192.0	692.7
Other - net, expense	(179.0)	(5.0)	(229.5)
Cost of sales, operating expenses, and other-net	18,937.0	16,550.8	16,478.2
Income before income taxes	5,349.5	6,525.2	5,357.8
Income taxes	1,001.8	1,455.7	1,029.0
Net income	$ 4,347.7	$ 5,069.5	$ 4,328.8
Earnings per share - basic and diluted	$ 3.90	$ 4.58	$ 3.94