Aon (AON) 8-K Regulation FD Disclosure

Exhibit 99.2

Aon Corporation

Segments - Reclassified for Discontinued Operations

	2005
(millions)	1st Quarter			2nd Quarter			Six Months
Revenue
Risk & Insurance Brokerage Services:
Risk Management & Insurance Brokerage - Americas	$	454		$	541		$	995
Risk Management & Insurance Brokerage - International	660			592			1,252
Reinsurance Brokerage & Related Services	240			203			443
Claims Services	—			—			—
Total Risk & Insurance Brokerage Services	1,354			1,336			2,690
Consulting:
Consulting Services	240			244			484
Outsourcing	69			71			140
Total Consulting	309			315			624
Insurance Underwriting:
Accident & Health and Life	440			450			890
Warranty, Credit and Property & Casualty	349			366			715
Total Insurance Underwriting	789			816			1,605
Corporate & Other	29			6			35
Intersegment Revenues	(15		)	(15		)	(30		)
Total	$	2,466		$	2,458		$	4,924
Income (loss) from continuing operations before provision for income tax
Risk & Insurance Brokerage Services	$	240		$	208		$	448
Consulting	26			29			55
Insurance Underwriting	68			83			151
Corporate & Other	(24		)	(51		)	(75		)
Total	$	310		$	269		$	579
Income from continuing operations before provision for income tax - margins
Risk & Insurance Brokerage Services	17.7		%	15.6		%	16.7		%
Consulting	8.4		%	9.2		%	8.8		%
Insurance Underwriting	8.6		%	10.2		%	9.4		%
Total	12.6		%	10.9		%	11.8		%

	2004
(millions)	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter			Full Year
Revenue
Risk & Insurance Brokerage Services:
Risk Management & Insurance Brokerage - Americas	$	480		$	531		$	503		$	566		$	2,080
Risk Management & Insurance Brokerage - International	633			574			512			638			2,357
Reinsurance Brokerage & Related Services	239			204			219			199			861
Claims Services	61			57			55			39			212
Total Risk & Insurance Brokerage Services	1,413			1,366			1,289			1,442			5,510
Consulting:
Consulting Services	225			230			229			265			949
Outsourcing	76			75			71			76			298
Total Consulting	301			305			300			341			1,247
Insurance Underwriting:
Accident & Health and Life	425			441			423			432			1,721
Warranty, Credit and Property & Casualty	356			364			356			353			1,429
Total Insurance Underwriting	781			805			779			785			3,150
Corporate & Other	36			18			(6		)	61			109
Intersegment Revenues	(18		)	(16		)	(15		)	(23		)	(72		)
Total	$	2,513		$	2,478		$	2,347		$	2,606		$	9,944
Income (loss) from continuing operations before provision for income tax
Risk & Insurance Brokerage Services	$	243		$	191		$	131		$	15		$	580
Consulting	26			28			29			22			105
Insurance Underwriting	53			73			67			61			254
Corporate & Other	(22		)	(32		)	(52		)	(2		)	(108		)
Total	$	300		$	260		$	175		$	96		$	831
Income from continuing operations before provision for income tax - margins
Risk & Insurance Brokerage Services	17.2		%	14.0		%	10.2		%	1.0		%	10.5		%
Consulting	8.6		%	9.2		%	9.7		%	6.5		%	8.4		%
Insurance Underwriting	6.8		%	9.1		%	8.6		%	7.8		%	8.1		%
Total	11.9		%	10.5		%	7.5		%	3.7		%	8.4		%

	2003
(millions)	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter			Full Year
Revenue
Risk & Insurance Brokerage Services:
Risk Management & Insurance Brokerage - Americas	$	456		$	522		$	499		$	575		$	2,052
Risk Management & Insurance Brokerage - International	524			507			478			565			2,074
Reinsurance Brokerage & Related Services	237			219			225			192			873
Claims Services	88			88			85			91			352
Total Risk & Insurance Brokerage Services	1,305			1,336			1,287			1,423			5,351
Consulting:
Consulting Services	209			224			214			251			898
Outsourcing	71			68			70			78			287
Total Consulting	280			292			284			329			1,185
Insurance Underwriting:
Accident & Health and Life	399			377			416			402			1,594
Warranty, Credit and Property & Casualty	310			315			326			338			1,289
Total Insurance Underwriting	709			692			742			740			2,883
Corporate & Other	31			40			14			40			125
Intersegment Revenues	(12		)	(16		)	(21		)	(19		)	(68		)
Total	$	2,313		$	2,344		$	2,306		$	2,513		$	9,476
Income (loss) from continuing operations before provision for income tax and minority interest
Risk & Insurance Brokerage Services	$	238		$	165		$	167		$	225		$	795
Consulting	21			22			20			47			110
Insurance Underwriting	63			64			58			11			196
Corporate & Other	(50		)	(6		)	(28		)	61			(23		)
Total	$	272		$	245		$	217		$	344		$	1,078
Income from continuing operations before provision for income tax - margins
Risk & Insurance Brokerage Services	18.2		%	12.4		%	13.0		%	15.8		%	14.9		%
Consulting	7.5		%	7.5		%	7.0		%	14.3		%	9.3		%
Insurance Underwriting	8.9		%	9.2		%	7.8		%	1.5		%	6.8		%
Total	11.8		%	10.5		%	9.4		%	13.7		%	11.4		%

	2002
(millions)	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter			Full Year
Revenue
Risk & Insurance Brokerage Services:
Risk Management & Insurance Brokerage - Americas	$	400		$	452		$	472		$	541		$	1,865
Risk Management & Insurance Brokerage - International	420			413			403			459			1,695
Reinsurance Brokerage & Related Services	194			186			204			181			765
Claims Services	77			80			87			85			329
Total Risk & Insurance Brokerage Services	1,091			1,131			1,166			1,266			4,654
Consulting:
Consulting Services	183			194			193			226			796
Outsourcing	48			52			74			76			250
Total Consulting	231			246			267			302			1,046
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	45			(95		)	8			21			(21		)
Total	$	2,016		$	2,032		$	2,159		$	2,273		$	8,480
Income (loss) from continuing operations before provision for income tax and minority interest
Risk & Insurance Brokerage Services	$	185		$	125		$	193		$	252		$	755
Consulting	27			24			26			45			122
Insurance Underwriting	68			2			41			44			155
Corporate & Other	(7		)	(147		)	(51		)	(37		)	(242		)
Total	$	273		$	4		$	209		$	304		$	790
Income from continuing operations before provision for income tax - margins
Risk & Insurance Brokerage Services	17.0		%	11.1		%	16.6		%	19.9		%	16.2		%
Consulting	11.7		%	9.8		%	9.7		%	14.9		%	11.7		%
Insurance Underwriting	10.5		%	0.3		%	5.7		%	6.4		%	5.5		%
Total	13.5		%	0.2		%	9.7		%	13.4		%	9.3		%

	2001
(millions)	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter			Full Year
Revenue
Risk & Insurance Brokerage Services:
Risk Management & Insurance Brokerage - Americas	$	384		$	432		$	393		$	518		$	1,727
Risk Management & Insurance Brokerage - International	375			342			322			374			1,413
Reinsurance Brokerage & Related Services	170			169			169			142			650
Claims Services	79			90			93			100			362
Total Risk & Insurance Brokerage Services	1,008			1,033			977			1,134			4,152
Consulting:
Consulting Services	169			181			180			210			740
Outsourcing	43			47			50			53			193
Total Consulting	212			228			230			263			933
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	(85		)	(14		)	3			(75		)	(171		)
Total	$	1,763		$	1,856		$	1,851		$	1,965		$	7,435
Income (loss) from continuing operations before provision for income tax and minority interest
Risk & Insurance Brokerage Services	$	157		$	65		$	126		$	155		$	503
Consulting	24			24			29			50			127
Insurance Underwriting	68			60			45			(5		)	168
Corporate & Other	(169		)	(94		)	(76		)	(151		)	(490		)
Total	$	80		$	55		$	124		$	49		$	308
Income from continuing operations before provision for income tax - margins
Risk & Insurance Brokerage Services	15.6		%	6.3		%	12.9		%	13.7		%	12.1		%
Consulting	11.3		%	10.5		%	12.6		%	19.0		%	13.6		%
Insurance Underwriting	10.8		%	9.9		%	7.0		%	-0.8		%	6.7		%
Total	4.5		%	3.0		%	6.7		%	2.5		%	4.1		%