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Aon plc (AON)
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Aon plc (AON) Long-Term Debt

The long-term debt for Aon plc (AON) is $15.30 Billion with a year-over-year change of -5.93%. Long-term debt includes bonds, term loans, mortgages, and other borrowings with maturities greater than one year. It represents the company's structural leverage.

AON Long-Term Debt Chart

AON Long-Term Debt
$15.30B+626.89% 20Y
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Current Long-Term Debt

$15.30B

$15.30 Billion

Year-over-Year Change

-5.93%

vs. $16.27B prior year

Historical Data

30

Years of data available

Annual Long-Term Debt History

YearLong-Term DebtYoY Change% Change
2025$15.30B$-964.00M-5.93%
2024$16.27B+$6.27B+62.73%
2023$9.99B+$170.00M+1.73%
2022$9.82B+$1.60B+19.41%
2021$8.23B+$947.00M+13.01%
2020$7.28B+$654.00M+9.87%
2019$6.63B+$634.00M+10.58%
2018$5.99B+$326.00M+5.75%
2017$5.67B$-202.00M-3.44%
2016$5.87B+$731.00M+14.23%
2015$5.14B+$339.00M+7.06%
2014$4.80B+$1.11B+30.20%
2013$3.69B$-27.00M-0.73%
2012$3.71B$-442.00M-10.64%
2011$4.16B+$141.00M+3.51%
2010$4.01B+$2.02B+100.90%
2009$2.00B+$126.00M+6.73%
2008$1.87B$-21.00M-1.11%
2007$1.89B$-100.00M-5.02%
2006$1.99B$-112.00M-5.32%
2005$2.10B$-10.00M-0.47%
2004$2.12B+$20.00M+0.95%
2003$2.10B+$2.01B+2253.93%
2002$89.00M$-11.00M-11.00%
2001$100.00M$-1.70B-94.44%
2000$1.80B+$187.00M+11.61%
1999$1.61B+$688.00M+74.54%
1998$923.00M+$286.00M+44.90%
1997$637.00M+$162.00M+34.11%
1996$475.00M
Data as of Thursday, June 11, 2026

About Aon plc

Aon plc is a global professional services firm that delivers expert advice and innovative solutions across the key areas of risk, retirement, and health. Its comprehensive commercial risk offerings include retail brokerage, cybersecurity consulting, global risk management strategies, and the administration of captive insurance programs. For health-related needs, Aon provides brokerage services for benefits and operates health care exchanges. The company is also active in the capital markets, specializing in treaty and facultative reinsurance, insurance-linked securities, and corporate finance advisory services such as capital raising, strategic guidance, restructuring, and mergers and acquisitions support. Additionally, Aon consults on the design and management of retirement programs, furnishes actuarial services, and advises on investment strategies for a wide array of plan types, including defined benefit and defined contribution plans, endowments, and foundations, for both public and private sector clients. The firm further extends its services through specific brands like CoverWallet, Affinity, Aon Inpoint, and ReView. Established in 1919, Aon plc's corporate headquarters are located in Dublin, Ireland.

Dublin
60,000 employees
Financial Services / Insurance - Brokers
Sector
Financial Services
Industry
Insurance - Brokers
CEO
Gregory Clarence Case