Selected Quarterly Data (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	3 Months Ended								12 Months Ended
		Dec. 31, 2013	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue			$ 5,375.6	$ 4,959.7	$ 4,978.7	$ 4,644.7	$ 5,121.3	$ 4,875.6	$ 4,935.6	$ 4,683.1	$ 19,958.7	$ 19,615.6	$ 23,113.1
Cost of sales			1,389.2	1,236.9	1,218.4	1,192.7	1,253.1	1,267.0	1,189.7	1,222.7	5,037.2	4,932.5	4,908.1
Operating Expenses	[1]		3,242.6	2,719.1	2,804.9	2,562.8	2,985.6	2,915.3	2,859.3	2,594.2
Acquired in-process research and development		$ 57.1	199.0	0.0	80.0	256.0	105.2	95.0	0.0	0.0	535.0	200.2	57.1
Asset impairment, restructuring, and other special charges			144.9	42.4	72.4	108.0	401.0	36.3	0.0	31.4	367.7	468.7	120.6
Other-net, (income) expense			(44.7)	(86.5)	123.3	(92.7)	(137.2)	(93.5)	(53.8)	(56.0)	(100.6)	(340.5)	(518.9)
Income before income taxes			444.6	1,047.8	679.7	617.9	513.6	655.5	940.4	890.8
Net income			$ 478.4	$ 799.7	$ 600.8	$ 529.5	$ 428.5	$ 500.6	$ 733.5	$ 727.9	$ 2,408.4	$ 2,390.5	$ 4,684.8
Basic			$ 0.45	$ 0.75	$ 0.57	$ 0.50	$ 0.40	$ 0.47	$ 0.68	$ 0.68	$ 2.27	$ 2.23	$ 4.33
Diluted			0.45	0.75	0.56	0.50	0.40	0.47	0.68	0.68	2.26	2.23	$ 4.32
Common Stock, Dividends, Per Share, Cash Paid			0.50	0.50	0.50	0.50	0.49	0.49	0.49	0.49
Maximum [Member]
Share Price			87.52	89.98	86.59	76.36	72.83	66.59	63.10	59.85	87.52	72.83
Minimum [Member]
Share Price			$ 76.98	$ 78.26	$ 70.89	$ 68.41	$ 61.90	$ 60.35	$ 58.21	$ 50.73	$ 76.98	$ 61.90

[1] (1) Includes