Condensed Consolidated Statements Of Comprehensive Loss - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net earnings (loss) attributable to Viatris Inc. common shareholders	$ 311.5	$ 185.7	$ (1,005.3)	$ 245.9
Other comprehensive (loss) earnings, before tax:
Foreign currency translation adjustment	(407.4)	687.7	(967.9)	483.1
Change in unrecognized gain (loss) and prior service cost related to defined benefit plans	0.8	(1.6)	74.1	3.4
Net unrealized (loss) gain on marketable securities	(0.1)	0.0	(0.8)	0.8
Other comprehensive (loss) earnings, before tax	(226.5)	603.9	(548.7)	367.4
Income tax provision (benefit)	40.4	2.8	65.2	(6.0)
Other comprehensive (loss) earnings, net of tax	(266.9)	601.1	(613.9)	373.4
Comprehensive earnings (loss)	44.6	786.8	(1,619.2)	619.3
Cash Flow Hedging
Other comprehensive (loss) earnings, before tax:
Net unrecognized gain (loss) on derivatives	11.8	32.5	27.5	(0.2)
Net Investment Hedging
Other comprehensive (loss) earnings, before tax:
Net unrecognized gain (loss) on derivatives	$ 168.4	$ (114.7)	$ 318.4	$ (119.7)