Condensed Consolidated Statements Of Comprehensive Loss - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net (loss) earnings attributable to Viatris Inc. common shareholders	$ (1,037.6)	$ 20.8
Other comprehensive loss, before tax:
Foreign currency translation adjustment	(721.2)	(656.6)
Change in unrecognized gain (loss) and prior service cost related to defined benefit plans	0.8	(1.6)
Net unrealized (loss) gain on marketable securities	(0.9)	0.2
Other comprehensive loss, before tax	(490.6)	(667.1)
Income tax provision (benefit)	37.0	(10.8)
Other comprehensive loss, net of tax	(527.6)	(656.3)
Comprehensive loss	(1,565.2)	(635.5)
Cash Flow Hedging
Other comprehensive loss, before tax:
Net unrecognized gain (loss) on derivatives	3.3	(51.4)
Net Investment Hedging
Other comprehensive loss, before tax:
Net unrecognized gain (loss) on derivatives	$ 227.4	$ 42.3