Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net sales	$ 3,738.0	$ 3,933.9	$ 11,177.4	$ 11,562.5
Other revenues	13.2	8.0	33.8	27.1
Total revenues	3,751.2	3,941.9	11,211.2	11,589.6
Cost of sales	2,292.0	2,250.6	6,802.6	6,747.5
Gross profit	1,459.2	1,691.3	4,408.6	4,842.1
Operating expenses:
Research and development	198.4	211.2	602.2	602.4
Acquired IPR&D	0.0	1.0	(1.7)	11.2
Selling, general and administrative	1,003.4	1,053.5	3,378.9	3,044.3
Litigation settlements and other contingencies, net	31.5	(26.1)	239.3	(36.5)
Total operating expenses	1,233.3	1,239.6	4,218.7	3,621.4
Earnings from operations	225.9	451.7	189.9	1,220.7
Interest expense	145.6	141.5	429.8	432.2
Other income, net	(10.2)	(92.0)	(143.2)	(269.4)
Earnings (loss) before income taxes	90.5	402.2	(96.7)	1,057.9
Income tax (benefit) provision	(4.3)	70.6	21.0	237.6
Net earnings (loss)	$ 94.8	$ 331.6	$ (117.7)	$ 820.3
Earnings (loss) per share attributable to Viatris Inc. shareholders
Basic (in USD per share)	$ 0.08	$ 0.28	$ (0.10)	$ 0.68
Diluted (in USD per share)	$ 0.08	$ 0.27	$ (0.10)	$ 0.68
Weighted average shares outstanding:
Basic (in shares)	1,193.5	1,199.5	1,193.3	1,200.4
Diluted (in shares)	1,200.4	1,207.6	1,193.3	1,205.6