Consolidated Condensed Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenue (Note 2)	$ 5,636.7	$ 5,585.0	$ 10,728.9	$ 10,548.8
Costs, expenses, and other:
Cost of sales	1,124.9	1,234.3	2,263.6	2,398.9
Research and development	1,402.2	1,271.0	2,632.7	2,378.5
Marketing, selling, and administrative	1,586.3	1,485.6	3,103.4	2,824.3
Acquired in-process research and development (Note 3)	25.0	1,624.5	161.9	1,624.5
Asset impairment, restructuring, and other special charges (Note 6)	0.0	(25.5)	423.9	31.3
Other–net, (income) expense (Note 13)	32.4	(46.6)	(53.6)	(116.1)
Cost of sales, operating expenses, and other-net	4,170.8	5,543.3	8,531.9	9,141.4
Income before income taxes	1,465.9	41.7	2,197.0	1,407.4
Income taxes (Note 9)	138.7	273.3	308.7	471.8
Net income (loss) from continuing operations	1,327.2	(231.6)	1,888.3	935.6
Net income (loss) from discontinued operations (Note 5)	0.0	(28.3)	3,680.5	21.9
Net income (loss)	$ 1,327.2	$ (259.9)	$ 5,568.8	$ 957.5
Earnings (loss) per share:
Earnings (loss) from continuing operations - basic (usd per share)	$ 1.44	$ (0.22)	$ 1.99	$ 0.90
Earnings (loss) from discontinued operations - basic (usd per share)	0	(0.03)	3.87	0.02
Earnings (loss) per share - basic (usd per share)	1.44	(0.25)	5.86	0.92
Earnings (loss) from continuing operations - diluted (usd per share)	1.44	(0.22)	1.98	0.90
Earnings (loss) from discontinued operations - diluted (usd per share)	0	(0.03)	3.86	0.02
Earnings (loss) per share - diluted (usd per share)	$ 1.44	$ (0.25)	$ 5.84	$ 0.92
Shares used in calculation of earnings (loss) per share:
Basic (shares)	920.8	1,030.2	950.4	1,039.6
Diluted (shares)	924.6	1,030.2	954.2	1,041.6