Selected Quarterly Data (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue		$ 5,121.3	$ 4,875.6	$ 4,935.6	$ 4,683.1	$ 5,808.8	$ 5,772.6	$ 5,929.7	$ 5,602.0	$ 19,615.6	$ 23,113.1	$ 22,603.4
Cost of sales		1,253.1	1,267.0	1,189.7	1,222.7	1,386.5	1,198.1	1,165.2	1,158.3	4,932.5	4,908.1	4,796.5
Operating Expenses		2,985.6	2,915.3	2,859.3	2,594.2	3,429.0	3,029.8	3,198.0	3,000.1
Acquired in-process research and development	57.1	105.2	95.0	0	0	57.1	0	0	0	200.2	57.1	0
Asset impairment, restructuring, and other special charges		401.0	36.3	0	31.4	35.4	0	63.5	21.7	468.7	120.6	281.1
Other-net, (income) expense		(137.2)	(93.5)	(53.8)	(56.0)	(9.1)	31.3	(11.9)	(529.2)	(340.5)	(518.9)	(674.0)
Income before income taxes		513.6	655.5	940.4	890.8	909.9	1,513.4	1,514.9	1,951.1	3,000.3	5,889.3	5,408.2
Net income		$ 428.5	$ 500.6	$ 733.5	$ 727.9	$ 727.5	$ 1,203.1	$ 1,206.2	$ 1,548.0	$ 2,390.5	$ 4,684.8	$ 4,088.6
Basic earnings per share		$ 0.40	$ 0.47	$ 0.68	$ 0.68	$ 0.68	$ 1.11	$ 1.12	$ 1.42	$ 2.23	$ 4.33	$ 3.67
Diluted earnings per share		$ 0.40	$ 0.47	$ 0.68	$ 0.68	$ 0.67	$ 1.11	$ 1.11	$ 1.42	$ 2.23	$ 4.32	$ 3.66
Common Stock, Dividends, Per Share, Cash Paid		$ 0.49	$ 0.49	$ 0.49	$ 0.49	$ 0.49	$ 0.49	$ 0.49	$ 0.49
Maximum [Member]
Share Price	$ 51.34	$ 72.83	$ 66.59	$ 63.10	$ 59.85	$ 51.34	$ 54.96	$ 58.33	$ 56.79	$ 72.83	$ 51.34
Minimum [Member]
Share Price	$ 47.65	$ 61.90	$ 60.35	$ 58.21	$ 50.73	$ 47.65	$ 49.92	$ 49.06	$ 49.51	$ 61.90	$ 47.65