Document:

EX-4.2

 Exhibit 4.2 

[FORM OF NOTE] 
 Unless this
Security is presented by an authorized representative of The Depository Trust Company (55 Water Street, New York, New York) to the issuer or its agent for registration of transfer, exchange or payment, and any Security issued upon registration of
transfer of, or in exchange for, or in lieu of, this Security is registered in the name of Cede & Co. or such other name as requested by an authorized representative of The Depository Trust Company and any payment hereon is made to
Cede & Co., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL since the registered owner hereof, Cede & Co., has an interest herein. 

AON CORPORATION 
 3.750%
Senior Notes due 2029 
 Guaranteed by Aon plc 
  

					
	 No.     
	  	$	__________	 

 CUSIP No. 037389 BC6 

AON CORPORATION 
 Aon
Corporation, a Delaware corporation (herein called the “Company,” which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede & Co., as nominee for The
Depository Trust Company, or registered assigns, the principal sum of                  DOLLARS
($                ) on May 2, 2029 and, subject to Section 16.05 of said Indenture, to pay interest thereon from May 2, 2019
or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually in arrears on each May 2 and November 2, commencing November 2, 2019 (each, an “Interest Payment Date”), at
the rate of 3.750% per annum, until the principal hereof is paid or made available for payment. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture, be paid to the
Person in whose name this Security (or one or more predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be the April 15 or October 15 (whether or not a Business Day), as
the case may be, immediately preceding such Interest Payment Date. Any such interest not so punctually paid or duly provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person
in whose name this Security (or one or more predecessor Securities) is registered at the close of business on a subsequent record date for the payment of such defaulted interest established by the Company, notice whereof shall be given to Holders of
Securities of this series not less than 15 days prior to such subsequent record date, such record date to be not less than 5 days preceding the date of payment of such defaulted interest, or be paid at any time in any other lawful manner not
inconsistent with the requirements of any securities exchange on which the Securities of this series may be listed, and upon such notice as may be required by such exchange, all as more fully provided in said Indenture. 

 Payment of the principal of (and premium, if any) and any such interest on this Security
will be made at the office or agency of the Company maintained for that purpose in the City of Chicago or the Borough of Manhattan, The City of New York, in such coin or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts; provided, however, that at the option of the Company payment of interest may be made by wire transfer, other electronic means or mailing checks to the address of the Holder entitled
thereto as such address shall appear in the Security Register. 
 The Securities of this series are subject to redemption and repurchase at
the option of the Company prior to the stated maturity as described in the Indenture and on the reverse hereof. 
 Reference is hereby made
to the further provisions of this Security set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. 

Unless the certificate of authentication hereon has been executed by the Trustee referred to herein by manual signature, this Security shall
not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 

 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed. 

Dated: May 2, 2019 
  

			
	 AON CORPORATION

		
	By:	 	 
		 	 Name:
 Title:

  

	
	 Attest:

	
	   

	 Name:
 Title:

 This is one of the Securities of the series designated therein referred to in the
within-mentioned Indenture. 
  

							
		 		 	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee
				
	 Dated: May 2, 2019
	 		 	By:	 	 
		 		 		 	 Authorized Officer

 This Security is one of a duly authorized series of securities of the Company entitled
“3.750% Senior Notes due 2029” (herein called the “Securities”) issued and to be issued in one or more series under the Indenture dated as of December 3, 2018 and an officers’ certificate dated as of May 2, 2019
(together, the “Indenture”), between the Company, the Guarantor and The Bank of New York Mellon Trust Company, N.A., as Trustee (herein called the “Trustee,” which term includes any successor trustee under the Indenture), to
which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities and of
the terms upon which the Securities are, and are to be, authenticated and delivered. The Securities of this series will initially be issued in the aggregate principal amount of $750,000,000. The Company may, from time to time, without the
written consent of or notice to holders of the Securities of this series, create and issue under the Indenture additional securities having the same terms and conditions as the Securities of this series (other than the issue date, the issue price
and, to the extent applicable, the first date from which interest on such additional securities shall accrue and the first interest payment date for such additional securities) and such additional securities shall be consolidated with and form a
single series with the Securities of this series. 
 The Company may redeem the Securities of this series, in whole at any time, or in part
from time to time, at the Company’s option, at a price equal to the greater of (1) 100% of the principal amount of the Securities to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal
and interest thereon (not including any portion of such payments of interest accrued as of the redemption date), discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting
of twelve 30-day months), at a rate equal to the sum of the applicable Treasury Rate (as defined below), plus 20 basis points, plus, in each case, accrued and unpaid interest thereon to but excluding the
redemption date (each such redemption being an “Optional Redemption”). 
 On or after February 2, 2029 (three months prior to
maturity) the Company may redeem any or all of the Securities at a redemption price equal to 100% of the principal amount of the Securities being redeemed, plus accrued and unpaid interest on the principal amount of the Securities being redeemed to
but excluding the redemption date (such redemption also being an “Optional Redemption”). 
 If the Company has given notice of
Optional Redemption as provided herein and in the Indenture and funds for the redemption of any Securities of this series called for Optional Redemption have been made available on the applicable redemption date, such Securities will cease to bear
interest on the date fixed for redemption. Thereafter, the only right of the Holders of such Securities will be to receive payment of the applicable redemption price. 

The Company will prepare and send a notice of an Optional Redemption to each Holder of Securities to be redeemed by first-class mail at least
30 and not more than 90 calendar days prior to the date fixed for such Optional Redemption. On and after the redemption date for an Optional Redemption, interest will cease to accrue on the Securities called for redemption (unless the Company
defaults in the payment of the redemption price). 

 “Comparable Treasury Issue” means the United States Treasury security selected by
the Quotation Agent as having a maturity comparable to the remaining term of the Securities to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt
securities of comparable maturity to the remaining term of the Securities. 
 “Comparable Treasury Price” means, with respect to
any redemption date, (i) the average of three Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, or (ii) if the Quotation Agent is given fewer
than five such Reference Treasury Dealer Quotations, the average of all such quotations, or (iii) if only one Reference Treasury Dealer Quotation is received, such quotation. 

“Quotation Agent” means the Reference Treasury Dealer appointed by the Company. 

“Reference Treasury Dealer” means each of Citigroup Global Markets Inc., Barclays Capital Inc. and Credit Suisse Securities (USA)
LLC (or their respective affiliates that are primary U.S. government securities dealers in New York City, each of which the Company refers to as a Primary Treasury Dealer) and their respective successors and any other nationally recognized
investment banking firm that is a Primary Treasury Dealer appointed from time to time by the Company; provided, however, that if any of the foregoing shall cease to be a Primary Treasury Dealer, the Company will substitute therefor another Primary
Treasury Dealer. 
 “Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any
redemption date, the average, as determined by the Quotation Agent, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Quotation Agent by such
Reference Treasury Dealer at 5:00 p.m., New York City time, on the third business day preceding such redemption date. 
 “Treasury
Rate” means, with respect to any redemption date, the rate per annum equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its
principal amount) equal to the Comparable Treasury Price for such redemption date. 
 All payments made by the Guarantor with respect to the
Guarantee shall be made free and clear of and without withholding or deduction for or on account of any present or future income, stamp or other tax, duty, levy, impost, assessment or other governmental charge of any nature whatsoever imposed or
levied by or on behalf of the government of the United Kingdom, of any territory of the United Kingdom or by any authority or agency therein or thereof having the power to tax (collectively, “Taxes”), unless the Guarantor is required to
withhold or deduct Taxes by law. 
 If an Event of Default with respect to the Securities of this series shall occur and be continuing, the
principal amount of and accrued and unpaid interest, if any, on the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture. 

 The Indenture contains provisions for defeasance at any time of the entire indebtedness of
this Security or certain restrictive covenants and Events of Default with respect to this Security, in each case upon compliance with certain conditions set forth therein. 

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations
of the Company and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of the Securities at the
time Outstanding of each series to be affected. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities of each series at the time Outstanding, on behalf of the Holders of all
Securities of such series, to waive compliance by the Company with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be
conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is
made upon this Security. 
 No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair
the obligation of the Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Security at the times, place and rate, and in the coin or currency, herein prescribed. 

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registerable in the
Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of and any premium and interest on this Security are payable, duly endorsed by, or accompanied by
a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of this series and of like
tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 

The Securities of this series are issuable only in registered form without coupons in denominations of $2,000 and integral multiples of
$1,000. As provided in the Indenture and subject to certain limitations therein set forth, Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of like tenor of a different authorized
denomination, as requested by the Holder surrendering the same. 
 No service charge shall be made for any such registration of transfer or
exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. 

Prior to due presentment of this Security for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security be overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary. 

Interest on this Security shall be computed on the basis of a 360-day year consisting of twelve 30-day months. 
 All terms used but not defined in this Security which are defined in the Indenture shall
have the meanings assigned to them in the Indenture. 
 This Security shall be governed by and construed in accordance with the laws of the
State of New York without giving effect to the conflict of laws provisions thereof. 

 ASSIGNMENT 

I or we assign and transfer this Security to: 
  

	
	 _______________________________________

(Insert assignee’s social security or tax I.D. number)

	
	 _______________________________________

(Print or type name, address and zip code of assignee)

 and irrevocably appoint: 
 as
agent to transfer this Security on the books of the Company. The agent may substitute another to act for him. 
  

							
	 Date:
	 	 	  	 Your

Signature:
	 	 
		 		  		 	(Sign exactly as your name appears on the face of this Security)

  

					
	 Signature

Guarantee:
	 	 	 	
                   
                             

 Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the
Security Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Security Registrar in
addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended. 

 NOTATION OF GUARANTEE 

For value received, the undersigned Guarantor (which term includes any successor Person under the Indenture), subject to the provisions in the Indenture and
the terms of the Securities of this series, has fully, unconditionally and irrevocably guaranteed to and for the benefit of each Holder and the Trustee the due and prompt payment in full of all amounts which may at any time be or become from time to
time due and payable by the Company under the Indenture or otherwise with respect to the Securities of this series registered in such Holder’s name, at their stated due dates or when otherwise due in accordance with the terms thereof. The
obligations of the Guarantor to the Holders of Securities and to the Trustee pursuant to the Guarantee under the Indenture are expressly set forth in Article Fifteen of the Indenture and reference is hereby made to the Indenture for the precise
terms of the Guarantee. Each Holder of a Security, by accepting the same, (a) agrees to and shall be bound by such provisions and (b) appoints the Trustee
attorney-in-fact of such Holder for the purpose of such provisions. 
  

			
	 Aon plc

		
	By:	 	 
		 	 Name:
 Title:Exhibit

Exhibit 10.4

AMENDMENT NO. 2 TO EMPLOYMENT AGREEMENT 

This Amendment No. 2 to Employment Agreement (this “Amendment No. 2”) is entered into as of April 29, 2019 (the “Amendment Effective Date”), by and between Caesars Enterprise Services, LLC, with offices at 1 Caesars Palace Drive, Las Vegas, Nevada (together with its successors and assigns, the “Company”) and Eric Hession (“Executive”).  
RECITALS
A.The Company and Executive entered into that certain Employment Agreement, dated and effective as of November 10, 2014 (the “Original Agreement”), as amended by that certain Amendment No. 1 to Employment Agreement, dated and effective March 8, 2017 (“Amendment No. 1”, together with the Original Agreement as amended by this Amendment No. 2, the or this “Agreement” (as the context requires)).
B.The Company and Executive now desire to amend the Agreement pursuant to and in accordance with the terms and conditions of this Amendment No. 2.
C.Any capitalized terms used in this Amendment No. 2 without definition have the meanings assigned to such terms in the Agreement.  
NOW, FOR GOOD AND VALUABLE CONSIDERATION, the receipt and sufficiency of which are hereby acknowledged, the parties agree that the foregoing recitals are true and correct, and are incorporated into this Amendment, and further agree as follows:
1.Amendments to Section 9 - Compensation Upon Termination.  The parties intend for Executive to be entitled to receive the compensation set forth in Section 9(c) of the Original Agreement if the Term of Employment expires due to the Company’s issuance of a Notice of Non-Renewal, pursuant and subject to the terms, conditions and qualifications set forth in the Original Agreement. Further, the parties desire to eliminate certain mitigation obligations of Executive set forth in Section 9(d) of the Original Agreement.  
(a)Specifically, the opening paragraph of Section 9(a) of the Original Agreement is deleted and replaced with the following: 
“(a)    Termination for Cause or Without Good Reason.  If Executive’s employment is terminated by the Company for Cause or by Executive without Good Reason:”
(b)Specifically, Section 9(c) of the Original Agreement is deleted and replaced with the following:
“(c)    Termination Without Cause, For Good Reason, Upon Expiration of the Term of Employment Due to Company’s Issuance of a Notice of Non-Renewal, or for Disability. In the event that Executive’s employment under this Agreement is terminated by the 

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Company without Cause under Section 7(d) of this Agreement,  by Executive with Good Reason under Section 7(e) of this Agreement, upon expiration of the Term of Employment due to Company’s issuance of a Notice of Non-Renewal pursuant to Section 7(f) of this Agreement, or by the Company for Disability under Section 7(b) of this Agreement during the Term of Employment, the Company shall pay or provide to Executive the Accrued Obligations and, subject to Executive’s signing a separation agreement and release substantially similar to the version attached hereto as Exhibit B (subject to changes that may be necessary at the Date of Termination) (the “Release”) within twenty-one (21) days or forty-five (45) days, whichever period is applicable under the ADEA (as defined in Exhibit B) following the Date of Termination, and not revoking the Release within seven (7) days of signing it, the Company shall pay to Executive a severance amount equal to Executive’s monthly rate of Base Salary (i.e., 1/12 of Executive’s annual rate of Base Salary) for each of eighteen (18) months (the “Severance Period”) beginning the day after the Date of Termination with payments commencing after execution of the Release by Executive, but in no case sooner than expiration of the 7-day waiting period set forth in Section 10 of Exhibit B, in accordance with the Company’s regular payroll practices; provided, that, the Company may cease making the payments under this Section 9(c) (in addition to asserting any other rights it may have in law of equity) (i) if Executive is in breach of any of Executive’s obligations under Section 10 of this Agreement and Executive has failed to cure such breach, if curable, within ten (10) days following the Company’s notice to Executive of such breach; or (ii) if Executive is in breach of any of the terms of the Release. If applicable and to the extent permitted under each plan, Executive will be entitled to receive the benefits set forth on Exhibit C hereto during the Severance Period.”
(c)Specifically, Section 9(d) of the Original Agreement is deleted and replaced with the following
“(d)    Offset.  To the extent permissible under Section 409A of the Internal Revenue Code of 1986, as amended, in the event of any termination of Executive’s employment under this Agreement, the Company is specifically authorized to offset against amounts due to Executive under this Agreement or otherwise on account of any claim that any of the Company or any of its Subsidiaries or Affiliates may have against Executive.” 
2.No Other Amendments.  All other terms, conditions and qualifications in the Agreement not specifically amended hereby remain in full force and effect. 
3.Miscellaneous.  Section 16 of the Original Agreement setting forth the various “Miscellaneous” provisions govern this Amendment No. 2 and is incorporated herein by this reference as if fully set forth. Notwithstanding the generality of the foregoing, the Original Agreement (including its exhibits), Amendment No. 1 and this Amendment No. 2 contain the entire agreement and understanding between the parties concerning the subject matter hereof, and supersede all prior agreements, understandings, discussions, negotiations and undertakings, whether written or oral, between them with respect thereto.   
[Signatures appear on the following page.]

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IN WITNESS WHEREOF, the undersigned have executed this Amendment No. 2 as of the Amendment Effective Date.

Caesars Enterprise Services, LLC  

By:    _/s/ Monica Digilio____________________
Name: Monica Digilio 
Title:      EVP & Chief Human Resources Officer 

Executive

_/s/ Eric Hession_______________________
Eric Hession
            

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