Condensed Consolidated Statements Of Comprehensive Loss - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net (loss) earnings attributable to Viatris Inc. common shareholders	$ (326.4)	$ 264.0	$ (212.5)	$ 488.7
Other comprehensive loss, before tax:
Foreign currency translation adjustment	(89.7)	(254.1)	(432.2)	(208.8)
Change in unrecognized loss and prior service cost related to defined benefit plans	(5.6)	(6.8)	(11.8)	(5.5)
Net unrealized gain (loss) on available-for-sale fixed income securities	0.0	0.2	(0.3)	1.1
Other comprehensive loss, before tax	(18.2)	(236.7)	(169.4)	(252.6)
Income tax provision (benefit)	16.0	4.3	58.4	(8.2)
Other comprehensive loss, net of tax	(34.2)	(241.0)	(227.8)	(244.4)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	(360.6)	23.0	(440.3)	244.3
Cash Flow Hedging
Other comprehensive loss, before tax:
Net unrecognized gain (loss) on derivatives	8.7	36.8	37.4	39.6
Net Investment Hedging
Other comprehensive loss, before tax:
Net unrecognized gain (loss) on derivatives	$ 68.4	$ (12.8)	$ 237.5	$ (79.0)