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Exhibit 99.2

AON CORPORATION
ADDITIONAL REVENUE INFORMATION

			2002
(millions)			1st Qtr.		2nd Qtr.			3rd Qtr.		4th Qtr.		Full Year
REVENUE
Risk & Insurance Brokerage Services:
	Risk Management & Insurance Brokerage—Americas		$	448	$	517		$	534	$	607	$	2,106
	Risk Management & Insurance Brokerage—International			420		413			403		459		1,695
	Reinsurance—Brokerage & Related Services			199		192			210		189		790
	Claims Services			90		93			100		99		382
		Total Risk & Insurance Brokerage Services		1,157		1,215			1,247		1,354		4,973
Consulting:
	Benefits, Compensation, Management & Communications Consulting			183		194			193		226		796
	Human Resources Consulting			50		54			76		78		258
		Total Consulting		233		248			269		304		1,054
Insurance Underwriting:
	Accident & Health and Life			389		441			415		394		1,639
	Warranty, Credit and Property & Casualty			260		309			303		290		1,162
		Total Insurance Underwriting		649		750			718		684		2,801
Corporate & Other:
	Auto Finance			4		4			4		3		15
	Corporate			45		(95	)		8		21		(21	)
		Total Corporate & Other		49		(91	)		12		24		(6	)
		Total Aon Corporation	$	2,088	$	2,122		$	2,246	$	2,366	$	8,822

			2001
(millions)			1st Qtr.			2nd Qtr.			3rd Qtr.		4th Qtr.			Full Year
REVENUE
Risk & Insurance Brokerage Services:
	Risk Management & Insurance Brokerage—Americas		$	423		$	480		$	441	$	576		$	1,920
	Risk Management & Insurance Brokerage—International			375			342			322		374			1,413
	Reinsurance—Brokerage & Related Services			175			171			174		148			668
	Claims Services			79			90			93		100			362
		Total Risk & Insurance Brokerage Services		1,052			1,083			1,030		1,198			4,363
Consulting:
	Benefits, Compensation, Management & Communications Consulting			169			181			180		210			740
	Human Resources Consulting			43			48			52		55			198
		Total Consulting		212			229			232		265			938
Insurance Underwriting:
	Accident & Health and Life			348			354			357		370			1,429
	Warranty, Credit and Property & Casualty			280			255			284		273			1,092
		Total Insurance Underwriting		628			609			641		643			2,521
Corporate & Other:
	Auto Finance			4			10			6		5			25
	Corporate			(85	)		(14	)		3		(75	)		(171	)
		Total Corporate & Other		(81	)		(4	)		9		(70	)		(146	)
		Total Aon Corporation	$	1,811		$	1,917		$	1,912	$	2,036		$	7,676

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Exhibit 99.2

AON CORPORATION ADDITIONAL REVENUE INFORMATION