Aon (AON) 8-K Regulation FD Disclosure

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Exhibit 99.2

AON CORPORATION
ADDITIONAL REVENUE INFORMATION

			2002												2003
			1st Qtr.		2nd Qtr.			3rd Qtr.		4th Qtr.		Full Year			1st Qtr.
			(millions)
REVENUE
Risk & Insurance Brokerage Services:
	Risk Management & Insurance Brokerage—Americas		$	448	$	517		$	534	$	607	$	2,106		$	507
	Risk Management & Insurance Brokerage—International			420		413			403		459		1,695			524
	Reinsurance Brokerage & Related Services			199		192			210		189		790			242
	Claims Services			90		93			100		99		382			101
		Total Risk & Insurance Brokerage Services		1,157		1,215			1,247		1,354		4,973			1,374
Consulting:
	Benefits, Compensation, Management & Communications Consulting			183		194			193		226		796			209
	Human Resource Outsourcing			50		54			76		78		258			73
		Total Consulting		233		248			269		304		1,054			282
Insurance Underwriting:
	Accident & Health and Life			389		441			415		394		1,639			399
	Warranty, Credit and Property & Casualty			260		309			303		290		1,162			310
		Total Insurance Underwriting		649		750			718		684		2,801			709
Corporate & Other:
	Auto Finance			4		4			4		3		15			4
	Corporate			45		(95	)		8		21		(21	)		31
		Total Corporate & Other		49		(91	)		12		24		(6	)		35
Intersegment Revenues				—		—			—		—		—			(12	)
		Total Aon Corporation	$	2,088	$	2,122		$	2,246	$	2,366	$	8,822		$	2,388

AON CORPORATION
ADDITIONAL REVENUE INFORMATION

			2001
			1st Qtr.			2nd Qtr.			3rd Qtr.		4th Qtr.			Full Year
			(millions)
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 Resource Outsourcing			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

AON CORPORATION
ADDITIONAL REVENUE INFORMATION

			2000
			1st Qtr.		2nd Qtr.		3rd Qtr.		4th Qtr.			Full Year
			(millions)
REVENUE
Risk & Insurance Brokerage Services:
	Risk Management & Insurance Brokerage—Americas		$	420	$	456	$	448	$	544		$	1,868
	Risk Management & Insurance Brokerage—International			370		332		301		332			1,335
	Reinsurance Brokerage & Related Services			156		149		163		157			625
	Claims Services			60		61		63		68			252
		Total Risk & Insurance Brokerage Services		1,006		998		975		1,101			4,080
Consulting:
	Benefits, Compensation, Management & Communications Consulting			143		147		148		198			636
	Human Resource Outsourcing			33		33		34		34			134
		Total Consulting		176		180		182		232			770
Insurance Underwriting:
	Accident & Health and Life			319		323		330		349			1,321
	Warranty, Credit and Property & Casualty			267		286		264		275			1,092
		Total Insurance Underwriting		586		609		594		624			2,413
Corporate & Other:
	Auto Finance			12		10		9		10			41
	Corporate			30		22		25		(6	)		71
		Total Corporate & Other		42		32		34		4			112
		Total Aon Corporation	$	1,810	$	1,819	$	1,785	$	1,961		$	7,375

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AON CORPORATION ADDITIONAL REVENUE INFORMATION