    <SEC-DOCUMENT>0001193125-20-067351-index.html : 20200309
    <SEC-HEADER>0001193125-20-067351.hdr.sgml : 20200309
    <ACCEPTANCE-DATETIME>20200309172638
    ACCESSION NUMBER:		0001193125-20-067351
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		24
    FILED AS OF DATE:		20200309
    DATE AS OF CHANGE:		20200309
    EFFECTIVENESS DATE:		20200309

    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:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-07933
    		FILM NUMBER:		20699000

    	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>DEFA14A
    <SEQUENCE>1
    <FILENAME>d888318ddefa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: d888318ddefa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>d888318dex991.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: d888318dex991.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>d888318dex992.htm
    <DESCRIPTION>EX-99.2
    <TEXT>
    Document 3 - file: d888318dex992.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.3
    <SEQUENCE>4
    <FILENAME>d888318dex993.htm
    <DESCRIPTION>EX-99.3
    <TEXT>
    Document 4 - file: d888318dex993.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.4
    <SEQUENCE>5
    <FILENAME>d888318dex994.htm
    <DESCRIPTION>EX-99.4
    <TEXT>
    Document 5 - file: d888318dex994.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.5
    <SEQUENCE>6
    <FILENAME>d888318dex995.htm
    <DESCRIPTION>EX-99.5
    <TEXT>
    Document 6 - file: d888318dex995.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.6
    <SEQUENCE>7
    <FILENAME>d888318dex996.htm
    <DESCRIPTION>EX-99.6
    <TEXT>
    Document 7 - file: d888318dex996.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g888318ex99_3p10g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g888318ex99_3p10g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g888318ex99_3p11g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g888318ex99_3p11g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g888318ex99_3p12g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g888318ex99_3p12g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>g888318ex99_3p13g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g888318ex99_3p13g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>g888318ex99_3p14g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g888318ex99_3p14g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g888318ex99_3p15g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g888318ex99_3p15g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>g888318ex99_3p16g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g888318ex99_3p16g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>g888318ex99_3p1g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g888318ex99_3p1g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>g888318ex99_3p2g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: g888318ex99_3p2g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>g888318ex99_3p3g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: g888318ex99_3p3g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>g888318ex99_3p4g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: g888318ex99_3p4g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>g888318ex99_3p5g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: g888318ex99_3p5g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>g888318ex99_3p6g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: g888318ex99_3p6g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>g888318ex99_3p7g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: g888318ex99_3p7g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>g888318ex99_3p8g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: g888318ex99_3p8g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>g888318ex99_3p9g1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: g888318ex99_3p9g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>g888318page235.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: g888318page235.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>