Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues [Abstract]
Net sales	$ 4,067.4	$ 4,520.5	$ 12,351.0	$ 13,482.3
Total revenues	4,078.2	4,536.6	12,386.7	13,544.7
Cost of sales	2,329.8	2,962.5	7,163.8	9,515.6
Gross profit	1,748.4	1,574.1	5,222.9	4,029.1
Operating expenses:
Research and development	174.9	152.1	479.8	483.9
Selling, general and administrative	1,017.3	1,055.0	2,913.7	3,446.3
Litigation settlements and other contingencies, net	(3.9)	9.4	13.2	55.3
Total operating expenses	1,188.3	1,216.5	3,406.7	3,985.5
Earnings from operations	560.1	357.6	1,816.2	43.6
Interest expense	153.2	151.9	445.3	488.0
Other (income) expense, net	(20.6)	5.8	26.6	16.1
Earnings before income taxes	427.5	199.9	1,344.3	(460.5)
Income tax provision (benefit)	73.2	(111.6)	276.9	544.8
Net earnings (loss)	$ 354.3	$ 311.5	$ 1,067.4	$ (1,005.3)
Earnings (loss) per share attributable to Viatris Inc. shareholders
Basic (in USD per share)	$ 0.29	$ 0.26	$ 0.88	$ (0.83)
Diluted (in USD per share)	$ 0.29	$ 0.26	$ 0.88	$ (0.83)
Weighted average shares outstanding:
Basic (in shares)	1,212.5	1,209.3	1,211.8	1,208.6
Diluted (in shares)	1,218.1	1,212.6	1,216.1	1,208.6
Other Revenues
Revenues [Abstract]
Other revenues	$ 10.8	$ 16.1	$ 35.7	$ 62.4