<SEC-DOCUMENT>0001193125-19-290591-index.html : 20191113
<SEC-HEADER>0001193125-19-290591.hdr.sgml : 20191113
<ACCEPTANCE-DATETIME>20191113084542
ACCESSION NUMBER:		0001193125-19-290591
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20191113

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Aon Corp
		CENTRAL INDEX KEY:			0001556748
		IRS NUMBER:				363051915
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-227514-01
		FILM NUMBER:		191211804

	BUSINESS ADDRESS:	
		STREET 1:		200 EAST RANDOLPH STREET
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
		BUSINESS PHONE:		312-381-1000

	MAIL ADDRESS:	
		STREET 1:		200 EAST RANDOLPH STREET
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Aon plc
		CENTRAL INDEX KEY:			0000315293
		STANDARD INDUSTRIAL CLASSIFICATION:	INSURANCE AGENTS BROKERS & SERVICES [6411]
		IRS NUMBER:				363051915
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-227514
		FILM NUMBER:		191211803

	BUSINESS ADDRESS:	
		STREET 1:		THE LEADENHALL BUILDING
		STREET 2:		122 LEADENHALL STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC3V 4AN
		BUSINESS PHONE:		(44) 20 7623 5500

	MAIL ADDRESS:	
		STREET 1:		THE LEADENHALL BUILDING
		STREET 2:		122 LEADENHALL STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC3V 4AN

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AON CORP
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMBINED INTERNATIONAL CORP
		DATE OF NAME CHANGE:	19870504
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B5
<SEQUENCE>1
<FILENAME>d834455d424b5.htm
<DESCRIPTION>424B5
<TEXT>
Document 1 - file: d834455d424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g834455g04u22.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g834455g04u22.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g834455g87c56.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g834455g87c56.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g834455g87z79.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g834455g87z79.jpg

</DOCUMENT>
</SEC-DOCUMENT>