Consolidated Condensed Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Revenue (Note 2)	$ 5,476.6	$ 5,306.9	$ 16,205.5	$ 15,855.7
Costs, expenses, and other:
Cost of sales	1,175.0	1,152.9	3,438.6	3,551.8
Research and development	1,380.9	1,280.9	4,013.6	3,659.4
Marketing, selling, and administrative	1,412.3	1,457.2	4,515.7	4,281.5
Acquired in-process research and development (Note 3)	77.7	30.0	239.6	1,654.5
Asset impairment, restructuring, and other special charges (Note 6)	0.0	42.9	423.9	74.2
Other–net, (income) expense (Note 13)	24.9	1.9	(28.7)	(114.2)
Costs, expenses, and other	4,070.8	3,965.8	12,602.7	13,107.2
Income before income taxes	1,405.8	1,341.1	3,602.8	2,748.5
Income taxes (Note 9)	151.9	247.5	460.6	719.3
Net income from continuing operations	1,253.9	1,093.6	3,142.2	2,029.2
Net income from discontinued operations (Note 5)	0.0	55.9	3,680.5	77.8
Net income	$ 1,253.9	$ 1,149.5	$ 6,822.7	$ 2,107.0
Earnings per share:
Earnings from continuing operations - basic (usd per share)	$ 1.37	$ 1.07	$ 3.35	$ 1.96
Earnings from discontinued operations - basic (usd per share)	0	0.06	3.92	0.08
Earnings per share - basic (usd per share)	1.37	1.13	7.27	2.04
Earnings from continuing operations - diluted (usd per share)	1.37	1.07	3.33	1.96
Earnings from discontinued operations - diluted (usd per share)	0	0.05	3.91	0.07
Earnings per share - diluted (usd per share)	$ 1.37	$ 1.12	$ 7.24	$ 2.03
Shares used in calculation of earnings per share:
Basic (shares)	913.9	1,020.4	938.2	1,033.2
Diluted (shares)	918.5	1,026.3	942.4	1,037.8