| S-3ASR | Automatic shelf registration statement o... | Aon plc , Aon Corp , Aon Global Holdings plc , Aon plc , Aon North America, Inc. | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 07/02/2026 | |
| CERT | Certification by an exchange approving s... | Aon North America, Inc. | NEW YORK STOCK EXCHANGE LLC /fa | 03/15/2024 | |
| 8-A12B | Form for the registration / listing of a... | Aon plc , Aon Corp , Aon Global Holdings plc , Aon plc , Aon North America, Inc. | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 03/01/2024 | |
| 424B5 | Prospectus filed pursuant to Rule 424(b)(5) | Aon plc , Aon Corp , Aon Global Holdings plc , Aon plc , Aon North America, Inc. | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 02/29/2024 | |
| FWP | Filing under Securities Act Rules 163/43... | Aon North America, Inc. | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 02/29/2024 | |
| 424B5 | Prospectus filed pursuant to Rule 424(b)(5) | Aon plc , Aon Corp , Aon Global Holdings plc , Aon plc , Aon North America, Inc. | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 02/27/2024 | |
| 8-A12B | Form for the registration / listing of a... | | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 06/22/2023 | |
| 8-A12B | Form for the registration / listing of a... | | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 06/22/2023 | |
| 8-A12B | Form for the registration / listing of a... | | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 06/22/2023 | |
| 8-A12B | Form for the registration / listing of a... | | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 06/22/2023 | |
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