SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
SIGNIFICANT ACCOUNTING POLICIES	Sep. 30, 2021
Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES	SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Use of Estimates The accompanying unaudited Consolidated Financial Statements have been prepared by the Company in U.S. dollars and in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial reporting, which do not conform in all respects to the requirements of U.S. GAAP for annual financial statements. Accordingly, these notes to the unaudited Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements prepared in accordance with U.S. GAAP that are contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, filed with the U.S. Securities and Exchange Commission (the “SEC”) and the Canadian Securities Administrators (the “CSA”) on February 24, 2021. The unaudited Consolidated Financial Statements have been prepared using accounting policies that are consistent with the policies used in preparing the Company’s audited Consolidated Financial Statements for the year ended December 31, 2020, except for the new accounting guidance adopted during the period. The unaudited Consolidated Financial Statements reflect all normal and recurring adjustments necessary for a fair statement of the Company’s financial position and results of operations for the interim periods. The operating results for the interim periods presented are not necessarily indicative of the results expected for the full year. Proposed Separation of Bausch + Lomb Eye Health Business and Proposed Initial Public Offering of Solta Medical Business On August 6, 2020, the Company announced that it intends to separate its eye health business into an independent publicly traded entity from the remainder of Bausch Health Companies Inc. (the “B+L Separation”). On August 3, 2021, the Company announced its intention to conduct an initial public offering ("IPO") of its aesthetic medical device business, Global Solta (“Solta Medical”) (the “Solta IPO"). The B+L Separation and the Solta IPO will establish three separate companies that include: (i) a fully integrated eye health company which will consist of the Company’s Bausch + Lomb Global Vision Care, Global Surgical, Global Consumer and Global Ophthalmology Rx businesses, (ii) a global provider of aesthetic medical devices which will consist of the Company’s Solta business and (iii) a diversified pharmaceutical company which will include the Company’s Salix, International Rx, dentistry, neurology, medical dermatology and generics pharmaceutical businesses. The anticipated B+L Separation and Solta IPO are subject to regulatory approvals and certain conditions, including final approval by the Company’s Board of Directors and any shareholder vote requirements that may be applicable. These unaudited Consolidated Financial Statements do not include any adjustments to give effect to either the B+L Separation or the Solta IPO. As of the date of the issuance of these financial statements, the Company has completed the internal objectives necessary for the B+L Separation and continues to address the internal organizational design and structure of the new Solta Medical entity which it anticipates having completed by the end of 2021. Subject to market conditions and receipt of regulatory, stock exchange and other approvals, the Company expects to launch the Solta IPO as early as December 2021 or January 2022. Subject to receipt of regulatory, stock exchange and other approvals and market conditions the Company expects to launch an IPO of the Bausch + Lomb entity as early as thirty days subsequent to the Solta IPO. The Company expects to complete the Separation of Bausch + Lomb, following the expiry of customary lock-ups and achievement of targeted debt leverage ratios, subject to receipt of applicable shareholder and other necessary approvals. Management is also exploring various capitalization structures and the form of each transaction in order to achieve the appropriate capitalization and leverage for each of the three entities if and when the proposed transactions are complete. Impacts of COVID-19 Pandemic The unprecedented nature of the COVID-19 pandemic has, and continues to, adversely impact the global economy. The COVID-19 pandemic and the reactions of governments, private sector participants and the public in an effort to contain the spread of the COVID-19 virus and/or address its impacts have had significant direct and indirect effects on businesses and commerce. This includes, but is not limited to, disruption to supply chains, employee base and transactional activity, facility closures and production suspensions. The extent to which these events may continue to impact the Company's business, financial condition, cash flows and results of operations, in particular, will depend on future developments which are highly uncertain and many of which are outside the Company's control. Such developments include the availability and effectiveness of vaccines for the COVID-19 virus, COVID-19 vaccine immunization rates, the ultimate geographic spread and duration of the pandemic, the extent and duration of a resurgence of the COVID-19 virus and variant strains thereof, such as the delta variant, new information concerning the severity of the COVID-19 virus, the effectiveness and intensity of measures to contain the COVID-19 virus and the economic impact of the pandemic and the reactions to it. Such developments, among others, depending on their nature, duration and intensity, could have a significant adverse effect on the Company's business, financial condition, cash flows and results of operations. To date, the Company has been able to continue its operations with limited disruptions in supply and manufacturing. Although it is difficult to predict the broad macroeconomic effects that the COVID-19 pandemic will have on industries or individual companies, the Company has assessed the possible effects and outcomes of the pandemic on, among other things, its supply chain, customers and distributors, discounts and rebates, employee base, product sustainability, research and development efforts, product pipeline and consumer demand and currently believes that its estimates are reasonable. Use of Estimates In preparing the unaudited Consolidated Financial Statements, management is required to make estimates and assumptions. This includes estimates and assumptions regarding the nature, timing and extent of the impacts that the COVID-19 pandemic will have on its operations and cash flows. The estimates and assumptions used by the Company affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the unaudited Consolidated Financial Statements, and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from these estimates and the differences could be material. On an ongoing basis, management reviews its estimates to ensure that these estimates appropriately reflect changes in the Company’s business and new information as it becomes available. If historical experience and other factors used by management to make these estimates do not reasonably reflect future activity, the Company’s results of operations and financial position could be materially impacted. Principles of Consolidation The unaudited Consolidated Financial Statements include the accounts of the Company and those of its subsidiaries and any variable interest entities for which the Company is the primary beneficiary. All intercompany transactions and balances have been eliminated. Reclassifications Certain reclassifications have been made to prior year amounts to conform to the current year presentation. Changes in Reportable Segments Commencing in the first quarter of 2021, the Company operates in the following reportable segments: (i) Bausch + Lomb, (ii) Salix, (iii) International Rx, (iv) Ortho Dermatologics and (v) Diversified Products. Prior to the first quarter of 2021, the Company operated in the following reportable segments: (i) Bausch + Lomb/International, (ii) Salix, (iii) Ortho Dermatologics and (iv) Diversified Products. Prior period presentations have been recast to conform to the current segment reporting structure. See Note 19, "SEGMENT INFORMATION" for additional information. Adoption of New Accounting Guidance In December 2019, the Financial Accounting Standards Board ("FASB") issued guidance that simplifies the accounting for income taxes by eliminating certain exceptions to the guidance related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The new guidance also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The guidance was effective for the Company beginning January 1, 2021. The application of this guidance did not have a material effect on the Company's financial position, results of operations and cash flows.