Table of Contents Income taxes - Uncertain tax positions As discussed in Notes 1 and 17 of the consolidated financial statements, the Company has recorded a liability of $719 million related to uncertain tax positions as of September 30, 2020. The Company conducts business in numerous countries and is therefore subject to income taxes in multiple jurisdictions, which impacts the provision for income taxes. Due to the multinational operations of the Company, changes in global income tax laws and regulation result in complexity in the accounting for and monitoring of income taxes including the provision for uncertain tax positions. Auditing the completeness of management’s identification of uncertain tax positions involved complex analysis and auditor judgment related to the evaluation of the income tax consequences of significant transactions, including internal restructurings, and changes in income tax law and regulations in various jurisdictions, which is often subject to interpretation. We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the Company’s income tax provision process, such as controls over management’s identification and assessment of changes to tax laws and income tax positions to account for uncertain tax positions, including management’s review of the related tax technical analyses. We performed audit procedures, among others, to evaluate the Company’s assumptions used to develop its uncertain tax positions and related unrecognized income tax benefit amounts by jurisdiction. We obtained an understanding of the Company’s legal structure through our review of organizational charts and related legal documents. We further considered the income tax consequences of significant transactions, including internal restructurings, and assessed management’s interpretation of those changes under the relevant jurisdiction’s tax law. Due to the complexity of tax law, we involved our tax subject matter professionals to assess the Company’s interpretation of and compliance with tax laws in these jurisdictions, as well as to identify tax law changes. We also involved our tax subject matter professionals to evaluate the technical merits of the Company’s accounting for its tax positions, including assessing the Company’s correspondence with the relevant tax authorities and evaluating third-party advice obtained by the Company. We also evaluated the Company’s income tax disclosures included in Note 17 to the consolidated financial statements in relation to these matters. Description of the Matter How We Addressed the Matter in Our Audit 50