Summary of significant accounting policies	6 Months Ended
Summary of significant accounting policies	Jun. 30, 2020
Summary of significant accounting policies	1 Summary of significant accounting policies Basis of presentation The accompanying unaudited condensed consolidated financial statements of Credit Suisse Group AG (the Group) are prepared in accordance with accounting principles generally accepted in the US (US GAAP) and are stated in Swiss francs (CHF). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2019 included in the Credit Suisse Annual Report 2019. > Refer to “Note 1 – Summary of significant accounting policies” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2019 for a description of the Group’s significant accounting policies, except as outlined in “Note 15 – Investment securities” and “Note 18 – Financial instruments measured at amortized cost and credit losses”, which reflect changes in policies relating to the adoption of Accounting Standards Update (ASU) 2016-13, “Measurement of Credit Losses on Financial Instruments” (ASU 2016-13) and subsequent amendments, which were adopted as of January 1, 2020. Certain financial information, which is normally included in annual consolidated financial statements prepared in accordance with US GAAP, but not required for interim reporting purposes, has been condensed or omitted. Certain reclassifications have been made to the prior period’s consolidated financial statements to conform to the current period’s presentation. These condensed consolidated financial statements reflect, in the opinion of management, all adjustments that are necessary for a fair presentation of the condensed consolidated financial statements for the periods presented. The 1Q20 consolidated statements of operations and comprehensive income, the 1Q20 consolidated balance sheet and the 1Q20 consolidated statement of changes in equity have been added for the convenience of the reader and are not a required presentation under US GAAP. The results of operations for interim periods are not indicative of results for the entire year. In preparing these condensed consolidated financial statements, management is required to make estimates and assumptions which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated balance sheets and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Bank
Summary of significant accounting policies	1 Summary of significant accounting policies Basis of presentation The accompanying unaudited condensed consolidated financial statements of Credit Suisse AG (the Bank), the direct bank subsidiary of Credit Suisse Group AG (the Group), are prepared in accordance with accounting principles generally accepted in the US (US GAAP) and are stated in Swiss francs (CHF). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2019, included in the Credit Suisse Group AG & Credit Suisse AG Annual Report 2019 (Credit Suisse Annual Report 2019). In addition, these condensed consolidated financial statements make references to the Group’s condensed consolidated financial statements in its 2Q20 and 1Q20 Financial Reports and the Group’s consolidated financial statements in the Credit Suisse Annual Report 2019. > Refer to “Note 1 – Summary of significant accounting policies” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2019 for a description of the Bank’s significant accounting policies. Certain financial information, which is normally included in annual consolidated financial statements prepared in accordance with US GAAP, but not required for interim reporting purposes, has been condensed or omitted. Certain reclassifications have been made to the prior period’s consolidated financial statements to conform to the current period’s presentation. These condensed consolidated financial statements reflect, in the opinion of management, all adjustments that are necessary for a fair presentation of the condensed consolidated financial statements for the periods presented. The results of operations for interim periods are not indicative of results for the entire year. In preparing these condensed consolidated financial statements, management is required to make estimates and assumptions which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated balance sheets and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.