8-K

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SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 4, 2002

Aon CORPORATION
(Exact name of Registrant as Specified in Its Charter)

Delaware (State or Other Jurisdiction of Incorporation)	1-7933 (Commission File Number)	36-3051915 (IRS Employer Identification No.)
200 East Randolph Street, Chicago, Illinois (Address of Principal Executive Offices)		60601 (Zip Code)

Registrant's Telephone Number, Including Area Code: (312) 381-1000

Not Applicable
(Former Name or Former Address, if Changed Since Last Report)

Item 5.    Other Events.

        On November 4, 2002, Aon Corporation (the "Company") issued a press release (the "Press Release") announcing its intention to offer convertible debt in a private placement. A copy of the Press Release is being filed as an exhibit hereto and is incorporated by reference herein.

Item 7.    Financial Statements, Pro Forma Financial Information and Exhibits.

(a) - (b)	Not applicable.
(c)	Exhibits:

Exhibit Number	Description of Exhibit
99	Press Release issued by the Company on November 4, 2002.

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SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Aon CORPORATION
	By:	/s/  R. I. SKILLING Raymond I. Skilling Executive Vice President and Chief Counsel
Date: November 4, 2002

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EXHIBIT INDEX

        The following is a list of the exhibits filed herewith.

Exhibit Number	Description of Exhibit
99	Press Release issued by the Company on November 4, 2002.

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Item 5. Other Events.
Item 7. Financial Statements, Pro Forma Financial Information and Exhibits.

SIGNATURES
EXHIBIT INDEX

EX-99

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Exhibit 99

Aon Announces Convertible Debt Offering

CHICAGO, IL—November 4, 2002—Aon Corporation (NYSE: AOC) today announced that it intends to offer in a private placement, subject to market and other conditions, $200 million in aggregate principal amount of convertible debentures due 2012 in an offering to qualified institutional buyers. The interest rate, conversion rate and offering price are to be determined by negotiations between Aon and the initial purchasers of the debentures. The offering is expected to take place on November 4, 2002. Aon intends to grant the initial purchasers a 13-day option to purchase an additional $30 million in aggregate principal amount of convertible debentures.

        Aon intends to use the net proceeds to repay short-term debt.

        Aon Corporation (www.aon.com) is a holding company that is comprised of a family of insurance brokerage, consulting and insurance underwriting subsidiaries.

This announcement is neither an offer to sell nor a solicitation to buy these securities. The securities will not be registered under the Securities Act of 1933, as amended (the "Securities Act"), or any state securities laws, and unless so registered, may not be offered or sold in the United States except pursuant to an exemption from the registration requirements of the Securities Act and applicable state laws. This press release may contain certain statements relating to future results, which are forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from either historical or anticipated results, depending on a variety of factors. Potential factors that could impact results include the general economic conditions in different countries around the world, fluctuations in global equity and fixed income markets, rating agency actions, the cost and availability of financing, the completion, cost and timing of the capital enhancement plan, changes in commercial property and casualty premium rates, the competitive environment, the actual cost of resolution of contingent liabilities and other loss contingencies, the ultimate impact of the business transformation plan, and the timing and resolution of related insurance and reinsurance issues relating to the events of September 11, 2001. Further information concerning the Company and its business, including factors that potentially could materially affect the Company's financial results, are contained in the Company's filings with the Securities and Exchange Commission.

-oOo-

Investor Contact:
Sean O'Neill
Vice President, Financial Relations
312-381-3983

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Exhibit 99