Quick Answer
Aon plc reported Long-Term Debt of $14.66 billion for fiscal year 2025.
Aon plc Long-Term Debt — Annual History
| Fiscal Year | Long-Term Debt | YoY Change |
|---|---|---|
| 2025 | $14.66B | -9.9% |
| 2024 | $16.27B | +62.7% |
| 2023 | $9.99B | +1.7% |
| 2022 | $9.82B | +19.4% |
| 2021 | $8.23B | +13.0% |
| 2020 | $7.28B | +9.9% |
| 2019 | $6.63B | +10.6% |
| 2018 | $5.99B | +5.8% |
| 2017 | $5.67B | -3.4% |
| 2016 | $5.87B | +14.2% |
| 2015 | $5.14B | +7.1% |
| 2014 | $4.80B | +30.2% |
| 2013 | $3.69B | -0.7% |
| 2012 | $3.71B | -10.6% |
| 2011 | $4.16B | +3.5% |
| 2010 | $4.01B | +100.9% |
| 2009 | $2.00B | +6.7% |
| 2008 | $1.87B | — |
Quarterly Long-Term Debt
| Quarter Ending | Long-Term Debt | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | $15.05B | -11.9% | -2.6% |
| June 30, 2025 | $15.45B | -12.3% | -5.1% |
| March 31, 2025 | $16.28B | +2.3% | +0.1% |
| December 31, 2024 | $16.27B | +62.7% | -4.8% |
| September 30, 2024 | $17.09B | +71.4% | -3.0% |
| June 30, 2024 | $17.61B | +76.3% | +10.6% |
| March 31, 2024 | $15.92B | +50.5% | +59.2% |
| December 31, 2023 | $9.99B | +1.7% | +0.3% |
- Aon plc showed a decrease of -9.9% in Long-Term Debt compared to the prior fiscal year.
- Over the 2008–2025 period, Aon plc’s long-term debt has grown by 683.1% (from $1.87 billion to $14.66 billion).
- The most recent figure is from Aon plc’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 13, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
Last verified: