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Principal accountants' fees and services (Tables) | 12 Months Ended
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Dec. 31, 2022
Analysis of income and expense [abstract] |
Disclosure of Accountants' Fees and Services | The table below shows fees charged by those firms and member firms of their networks to Sanofi and consolidated subsidiaries in the years ended December 31, 2022 and 2021.
| Ernst & Young | PricewaterhouseCoopers
| 2022 | 2021 | 2022 | 2021
(€ million) | Amount | % | Amount | % | Amount | % | Amount | %
Audit: Statutory audit of separate and consolidated financial statements(a) | 14.2 |  | 89 | % | 13.9 |  | 82 | % | 14.1 |  | 97 | % | 13.8 |  | 97 | %
Services other than statutory audit(b) | 1.8 |  | 11 | % | 3.0 |  | 18 | % | 0.5 |  | 3 | % | 0.4 |  | 3 | %
Audit-related services(c) | 1.5 |  |  | 2.8 |  |  | 0.5 |  |  | 0.4 |  |
Tax | 0.0 |  |  | — |  |  | 0.0 |  |  | — |  |
Other | 0.3 |  |  | 0.2 |  |  | — |  |  | — |  |
Total | 16.0 |  | 100 | % | 16.9 |  | 100 | % | 14.6 |  | 100 | % | 14.2 |  | 100 | %
(a) Includes services provided by the independent auditors of the parent company and French subsidiaries: Ernst & Young €7.3 million in 2022, €7.2 million in 2021; PricewaterhouseCoopers €7.7 million in 2022, €7.7 million in 2021. (b) Services other than statutory audit provided by Ernst & Young et Autres during 2022 comprised: - work on share capital transactions and securities issues submitted to the Annual General Meeting (in extraordinary business) for approval; - additional procedures to enable reports previously signed by the firm to be incorporated by reference; - agreed-upon and audit procedures in connection with a proposed divestment; and - issuance of the Independent third party’s report on the consolidated statement of extra-financial performance. Services other than statutory audit provided by PricewaterhouseCoopers Audit during 2022 comprised: - work on share capital transactions and securities issues submitted to the Annual General Meeting (in extraordinary business) for approval; - additional procedures to enable reports previously signed by the firm to be incorporated by reference; - contractual audits, assurance engagements, agreed-upon procedures, tax compliance work, and technical consultancy. (c) Includes services provided by the independent auditors of the parent company and French subsidiaries: Ernst & Young: €1.4 million in 2022, €2.7 million in 2021; PricewaterhouseCoopers €0.3 million in 2022, €0.3 million in 2021.

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