Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Earnings Per Common Share Attributable To Mylan

Basic and diluted earnings per share attributable to Viatris Inc. are calculated as follows:

	Year Ended December 31,
(In millions, except per share amounts)	2021		2020		2019
Basic (loss) earnings attributable to Viatris Inc. common shareholders (numerator):
Net (loss) earnings attributable to Viatris Inc. common shareholders	$	(1,269.1)	$	(669.9)	$	16.8
Shares (denominator):
Weighted average shares outstanding	1,208.8		601.2		515.7
Basic (loss) earnings per share attributable to Viatris Inc. shareholders	$	(1.05)	$	(1.11)	$	0.03
Diluted (loss) earnings attributable to Viatris Inc. common shareholders (numerator):
Net (loss) earnings attributable to Viatris Inc. common shareholders	$	(1,269.1)	$	(669.9)	$	16.8
Shares (denominator):
Weighted average shares outstanding	1,208.8		601.2		515.7
Share-based awards	—		—		0.8
Total dilutive shares outstanding	1,208.8		601.2		516.5
Diluted (loss) earnings per share attributable to Viatris Inc. shareholders	$	(1.05)	$	(1.11)	$	0.03