Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net loss attributable to Viatris Inc. common shareholders	$ (3,046.6)	$ (212.5)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	1,343.0	1,477.3
Share-based compensation expense	92.3	81.4
Deferred income tax benefit	(91.1)	(206.3)
Loss on disposal of business	80.7	188.4
Acquired IPR&D	15.0	(12.7)
Impairment of goodwill	2,936.8	321.0
Other non-cash items	726.3	(244.9)
Litigation settlements and other contingencies, net	(97.0)	214.0
Changes in operating assets and liabilities:
Accounts receivable	158.4	32.6
Inventories	(232.7)	(558.8)
Accounts payable	(189.7)	56.3
Income taxes	(366.6)	18.7
Other operating assets and liabilities, net	(573.6)	(160.8)
Net cash provided by operating activities	755.2	993.7
Cash flows from investing activities:
Cash paid for acquisitions, net of cash acquired	0.0	(350.0)
Capital expenditures	(95.5)	(108.6)
Purchase of marketable securities	(10.9)	(13.3)
Proceeds from the sale of marketable securities	10.9	13.3
Payments for product rights and other, net	(20.0)	(11.7)
(Purchases) refunds of IPR&D	(15.0)	12.7
Proceeds from sale of assets and subsidiaries	0.0	677.7
Proceeds from the sale of property, plant and equipment	12.9	1.4
Net cash (used in) provided by investing activities	(117.6)	221.5
Cash flows from financing activities:
Payments of long-term debt	0.0	(801.7)
Purchase of common stock	(350.4)	(250.0)
Change in short-term borrowings, net	1.4	0.0
Taxes paid related to net share settlement of equity awards	(29.5)	(32.1)
Contingent consideration payments	(13.1)	(31.5)
Payments of financing fees	(1.0)	0.0
Cash dividends paid	(283.1)	(288.3)
Issuance of common stock	1.3	1.3
Other items, net	(155.0)	128.8
Net cash used in financing activities	(829.4)	(1,273.5)
Effect on cash of changes in exchange rates	23.5	(16.8)
Net decrease in cash, cash equivalents and restricted cash	(168.3)	(75.1)
Cash, cash equivalents and restricted cash — beginning of period	736.1	993.6
Cash, cash equivalents and restricted cash — end of period	$ 567.8	$ 918.5