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Debt | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Debt | Debt Notes In May 2025, Aon Global Limited’s €500 million ($585 million at September 30, 2025 exchange rates) 2.875% Senior Notes due May 2026 were classified as Short-term debt and current portion of long-term debt in the Consolidated Statement of Financial Position as the date of maturity is in less than one year. The Company expects to use cash flow from operations and available cash on hand to repay these Senior Notes. In December 2024, Aon Global Limited’s $750 million 3.875% Senior Notes due December 2025 were classified as Short-term debt and current portion of long-term debt in the Consolidated Statement of Financial Position as the date of maturity is in less than one year. The Company expects to use cash flow from operations and available cash on hand to repay these Senior Notes. In June 2024, Aon Global Limited’s $600 million 3.500% Senior Notes matured and were repaid in full. On April 25, 2024, Aon North America, Inc. drew its $2 billion delayed draw term loan and used proceeds, together with the proceeds of the Senior Notes issued on March 1, 2024 described below, to pay a portion of cash consideration in connection with the acquisition of NFP, completed on April 25, 2024, (the “NFP Transaction”), to repay certain debt of NFP, and to pay related fees and expenses. The term loan was set to mature on April 24, 2027 and was prepayable at any time. In the third quarter of 2025, Aon North America, Inc. repaid $400 million of the outstanding balance under the term loan facility. As of September 30, 2025, Aon had repaid $1.6 billion of the outstanding balance and the remaining outstanding balance was $400 million. On October 31, 2025, Aon North America, Inc. repaid the remaining $400 million outstanding balance. On April 2, 2024, Aon plc announced that its wholly owned subsidiary, Randolph Acquisition Corp., commenced cash tender offers for any and all of the outstanding 6.875% Senior Notes due 2028, 4.875% Senior Secured Notes due 2028, 7.500% Senior Secured Notes due 2030 and 8.500% Senior Secured Notes due 2031, each issued by NFP Corp. (together, the “NFP Notes”), upon the terms and subject to the conditions set forth in the Offer to Purchase and Consent Solicitation Statement, dated as of April 2, 2024. The total amount tendered pursuant to the tender offers was approximately $3.3 billion, excluding premiums. On April 26, 2024, Randolph Acquisition Corp. purchased those NFP Notes that were validly tendered and not validly withdrawn prior to April 15, 2024, effecting the early settlement of the offers (the “Early Settlement”). In addition, on April 16, 2024, NFP Corp. delivered notices of redemption of all NFP Notes not validly tendered pursuant to the offers and purchased at the Early Settlement, at a purchase price equal to the price paid to holders of the NFP Notes in connection with the Early Settlement, with a redemption date of April 26, 2024. As a result of the Early Settlement of the offers and the related redemption which occurred on April 26, 2024, no NFP Notes remain outstanding. Aon plc incurred $6 million of debt extinguishment charges in the second quarter of 2024 related to costs related to the NFP Transaction. On March 1, 2024, Aon North America, Inc. issued $600 million 5.125% Senior Notes due in March 2027, $1 billion 5.150% Senior Notes due in March 2029, $650 million 5.300% Senior Notes due in March 2031, $1.75 billion 5.450% Senior Notes due in March 2034, and $2 billion 5.750% Senior Notes due in March 2054, totaling to an aggregate amount of $6 billion. The Company intends to use the net proceeds from the offering for general corporate purposes, including a portion of which was used to pay a portion of the cash consideration in connection with the NFP Transaction, to repay certain debt of NFP, and to pay related fees and expenses. Revolving Credit Facilities As of September 30, 2025, Aon plc had two primary committed credit facilities outstanding: its $1.0 billion multi-currency U.S. credit facility expiring in September 2027 and its $1.0 billion multi-currency U.S. credit facility expiring in October 2028. In aggregate, these two facilities provide $2.0 billion in available credit. Each of these primary committed credit facilities includes customary representations, warranties, and covenants, including financial covenants that require Aon to maintain specified ratios of adjusted consolidated EBITDA to consolidated interest expense and consolidated debt to adjusted consolidated EBITDA, in each case, tested quarterly. Aon did not have borrowings under either of these primary committed credit facilities as of September 30, 2025 or December 31, 2024. Additionally, Aon was in compliance with the financial covenants and all other covenants contained therein during the rolling 12 months ended September 30, 2025 and December 31, 2024. Commercial Paper Aon Corporation has established a U.S. commercial paper program (the “U.S. Program”) and Aon Global Holdings plc has established a European multi-currency commercial paper program (the “European Program” and, together with the U.S. Program, the “Commercial Paper Programs”). Commercial paper may be issued in aggregate principal amounts of up to approximately $1.3 billion under the U.S. Program and €625 million ($731 million at September 30, 2025 exchange rates) under the European Program, not to exceed the amount of the Company’s committed credit facilities, which was $2.0 billion at September 30, 2025. The aggregate capacity of the Commercial Paper Program remains fully backed by the Company’s committed credit facilities. The U.S. Program was fully and unconditionally guaranteed by Aon plc, Aon Global Limited, Aon North America, Inc., and Aon Global Holdings plc and the European Program was fully and unconditionally guaranteed by Aon plc, Aon Global Limited, Aon North America, Inc., and Aon Corporation. Commercial paper outstanding, which is included in Short-term debt and current portion of long-term debt in the Company’s Condensed Consolidated Statements of Financial Position, is as follows (in millions):
| September 30, 2025 | December 31, 2024
Commercial paper outstanding | $ | 399 |  | $ | — |
The weighted average commercial paper outstanding and its related interest rates are as follows (in millions, except percentages):
|  | Three Months Ended September 30, | Nine Months Ended September 30,
|  | 2025 |  | 2024 | 2025 |  | 2024
Weighted average commercial paper outstanding |  | $ | 347 |  |  | $ | 56 |  | $ | 467 |  |  | $ | 157 |
Weighted average interest rate of commercial paper outstanding |  | 4.02 | % |  | 5.51 | % | 4.23 | % |  | 5.62 | %

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A Reference 2: http://www.xbrl.org/2003/role/disclosureRef 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