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Exhibit 99.3

AON CORPORATION
VARIOUS SEGMENT INFORMATION—AFTER RECLASSIFICATION

				2002															2003
				1st Qtr.			2nd Qtr.			3rd Qtr.			4th Qtr.			Full Year			1st Qtr.
				(millions)
REVENUE
	Risk & Insurance Brokerage Services			$	1,157		$	1,215		$	1,247		$	1,354		$	4,973		$	1,374
	Consulting				233			248			269			304			1,054			282
	Insurance Underwriting				649			750			718			684			2,801			709
	Corporate & Other				49			(91	)		12			24			(6	)		35
	Intersegment Revenues				—			—			—			—			—			(12	)
			Total Revenue	$	2,088		$	2,122		$	2,246		$	2,366		$	8,822		$	2,388
INCOME (LOSS) BEFORE INCOME TAXES
	Risk & Insurance Brokerage Services			$	189		$	144		$	209		$	249		$	791		$	230
	Consulting				27			23			26			44			120			20
	Insurance Underwriting				68			2			41			44			155			63
	Corporate & Other				(13	)		(153	)		(59	)		(48	)		(273	)		(57	)
			Total Income Before Income Taxes	$	271		$	16		$	217		$	289		$	793		$	256
INCOME BEFORE INCOME TAXES—MARGINS
	Risk & Insurance Brokerage Services				16.3	%		11.9	%		16.8	%		18.4	%		15.9	%		16.7	%
	Consulting				11.6	%		9.3	%		9.7	%		14.5	%		11.4	%		7.1	%
	Insurance Underwriting				10.5	%		0.3	%		5.7	%		6.4	%		5.5	%		8.9	%
			Total Income Before Income Taxes—Margins		13.0	%		0.8	%		9.7	%		12.2	%		9.0	%		10.7	%
ORGANIC REVENUE GROWTH
	Risk & Insurance Brokerage Services:
		Risk Management & Insurance Brokerage—Americas			9	%		8	%		26	%		11	%		13	%		13	%
		Risk Management & Insurance Brokerage—International			16	%		13	%		14	%		12	%		14	%		10	%
		Reinsurance Brokerage & Related Services			25	%		14	%		34	%		21	%		23	%		15	%
		Claims Services			10	%		2	%		6	%		-2	%		4	%		14	%
			Total Risk & Insurance Brokerage Services		13	%		10	%		21	%		10	%		13	%		12	%
	Consulting:
		Benefits, Compensation, Management and Communications Consulting			6	%		6	%		6	%		5	%		6	%		6	%
		Human Resource Outsourcing			3	%		3	%		44	%		37	%		22	%		38	%
			Total Consulting		4	%		6	%		14	%		12	%		9	%		13	%
	Insurance Underwriting:
		Accident & Health and Life			30	%		20	%		8	%		11	%		16	%		5	%
		Warranty, Credit and Property & Casualty			6	%		26	%		5	%		-5	%		5	%		20	%
			Total Insurance Underwriting		17	%		23	%		7	%		4	%		11	%		12	%
	Total Organic Revenue Growth				14	%		14	%		15	%		9	%		12	%		12	%

AON CORPORATION
VARIOUS SEGMENT INFORMATION—AFTER RECLASSIFICATION

				2001
				1st Qtr.			2nd Qtr.			3rd Qtr.			4th Qtr.			Full Year
				(millions)
REVENUE
	Risk & Insurance Brokerage Services			$	1,052		$	1,083		$	1,030		$	1,198		$	4,363
	Consulting				212			229			232			265			938
	Insurance Underwriting				628			609			641			643			2,521
	Corporate & Other				(81	)		(4	)		9			(70	)		(146	)
			Total Revenue	$	1,811		$	1,917		$	1,912		$	2,036		$	7,676
INCOME (LOSS) BEFORE INCOME TAXES
	Risk & Insurance Brokerage Services			$	166		$	79		$	142		$	178		$	565
	Consulting				24			24			29			49			126
	Insurance Underwriting				68			60			45			(5	)		168
	Corporate & Other				(210	)		(99	)		(83	)		(158	)		(550	)
			Total Income Before Income Taxes	$	48		$	64		$	133		$	64		$	309
INCOME BEFORE INCOME TAXES—MARGINS
	Risk & Insurance Brokerage Services				15.8	%		7.3	%		13.8	%		14.9	%		12.9	%
	Consulting				11.3	%		10.5	%		12.5	%		18.5	%		13.4	%
	Insurance Underwriting				10.8	%		9.9	%		7.0	%		-0.8	%		6.7	%
			Total Income Before Income Taxes—Margins		2.7	%		3.3	%		7.0	%		3.1	%		4.0	%
ORGANIC REVENUE GROWTH
	Risk & Insurance Brokerage Services:
		Risk Management & Insurance Brokerage—Americas			0	%		6	%		-2	%		0	%		1	%
		Risk Management & Insurance Brokerage—International			8	%		9	%		7	%		10	%		9	%
		Reinsurance Brokerage & Related Services			18	%		23	%		4	%		13	%		14	%
		Claims Services			46	%		51	%		49	%		45	%		47	%
			Total Risk & Insurance Brokerage Services		8	%		12	%		6	%		9	%		9	%
	Consulting:
		Benefits, Compensation, Management and Communications Consulting			11	%		10	%		6	%		8	%		9	%
		Human Resource Outsourcing			-2	%		6	%		-1	%		4	%		2	%
			Total Consulting		8	%		9	%		4	%		7	%		7	%
	Insurance Underwriting:
		Accident & Health and Life			8	%		8	%		10	%		16	%		11	%
		Warranty, Credit and Property & Casualty			1	%		-7	%		6	%		1	%		0	%
			Total Insurance Underwriting		5	%		1	%		8	%		8	%		5	%
	Total Organic Revenue Growth				7	%		8	%		7	%		9	%		8	%

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AON CORPORATION VARIOUS SEGMENT INFORMATION—AFTER RECLASSIFICATION