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): December 3, 2001

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 December 3, 2001 Aon Corporation (the "Company") issued a press release announcing the filing of a $750 million universal shelf registration statement with the Securities and Exchange Commission. A copy of the press release is being filed as an exhibit hereto.

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

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

Exhibit Number	Description of Exhibits
99	Press release issued by the Company on December 3, 2001.

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 hereunto duly authorized.

Aon CORPORATION
By:	/s/ RAYMOND I. SKILLING Raymond I. Skilling Executive Vice President and Chief Counsel

Date: December 4, 2001

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 December 3, 2001.

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SIGNATURES
EXHIBIT INDEX

EX-99

Aon Files $750 Million Universal Shelf

Major Portion of Capital Raising to be Dedicated To New Property and Casualty Underwriting Initiatives

    CHICAGO—(BUSINESS WIRE)—Dec. 3, 2001—Aon Corporation (NYSE: AOC—news) today filed a $750 million universal shelf registration statement (Form S-3) with the Securities and Exchange Commission. The Company anticipates that a substantial portion of the securities to be registered will be for a common equity offering planned for early first quarter 2002, subject to market conditions. Proceeds are expected to be used for new underwriting initiatives and to strengthen the Company's capital base.

    The new underwriting initiatives include offering new property and casualty insurance products through the Company's underwriting subsidiaries preceding the planned spin-off of Combined Specialty in Spring 2002, as previously announced. Decisions regarding the amount of funding to be allocated to this initiative will be based upon the completion of business plans to be finalized in early 2002.

    As previously announced, the Company also plans to invest $200 million in Endurance Specialty Insurance Ltd., a new Bermuda-based underwriting company. It is expected that this investment will be financed through the Company's insurance underwriting subsidiaries and that Combined Specialty will become a minority owner in Endurance Specialty upon completion of the spin-off.

    Aon Corporation (www.aon.com) is a holding company that is comprised of a family of insurance brokerage, consulting and insurance underwriting subsidiaries. Aon's common stock is listed on the New York, Chicago, Frankfurt and London stock exchanges.

    A registration statement relating to debt and equity securities has been filed with the Securities and Exchange Commission but has not yet become effective. The securities may not be sold nor may offers to buy be accepted prior to the time that the registration statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sales of the securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

    A prospectus for any offering, when available, may be obtained from the underwriters of the offering and from Aon Corporation, 200 East Randolph Street, Chicago, Illinois 60601, Attention: Financial Relations.

    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 historical results or those anticipated, depending on a variety of factors such as general economic conditions in different countries around the world, fluctuations in global equity and fixed income markets, changes in commercial property and casualty premium rates, the competitive environment, the actual cost of resolution of contingent liabilities, the final form of the business transformation plan, the ultimate cost and timing of the implementation thereof, the actual cost savings and other benefits resulting therefrom, whether the Company ultimately implements the proposed spin-off of its underwriting operations, and the timing and terms associated therewith, the timing, amount and ultimate completion of the capitalization of Endurance Specialty Insurance Ltd. and events surrounding terrorists attacks of September 11, 2001, including the timing and resolution of related insurance and reinsurance issues. 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.