POWER OF ATTORNEY
                      FOR SECTION 16 REPORTING OBLIGATIONS

                                  May 29, 2019

     KNOW ALL BY THESE PRESENTS, that the undersigned hereby makes, constitutes
and appoints Mario Marte and Stacy Bowman, signing singly, as the undersigned's
true and lawful attorneys-in-fact, with full power and authority as hereinafter
described on behalf of and in the name, place and stead of the undersigned to:

     (i) execute for and on behalf of the undersigned, in the undersigned's
         capacity as a director, officer or beneficial owner of shares of common
         stock of Chewy, Inc., a Delaware corporation (the "Company"), any
         Schedule 13D or Schedule 13G, and any amendments, supplements or
         exhibits thereto (including any joint filing agreements) required to be
         filed by the undersigned under Section 13 of the Securities Exchange
         Act of 1934, as amended (the "Exchange Act"), and the rules and
         regulations promulgated thereunder, and any Forms 3, 4 and 5 and any
         amendments, supplements or exhibits thereto required to be filed by the
         undersigned under Section 16(a) of the Exchange Act;

    (ii) do and perform any and all acts for and on behalf of the undersigned
         which may be necessary or desirable to complete and execute any such
         Schedule 13D, Schedule 13G, Form 3, 4, or 5 and timely file such forms
         with the United States Securities and Exchange Commission and any stock
         exchange on which the common stock of the Company is then listed; and

   (iii) take any other action of any type whatsoever in connection with the
         foregoing which, in the opinion of such attorneys-in-fact, may be of
         benefit to, in the best interest of, or legally required by, the
         undersigned, it being understood that the documents executed by such
         attorneys-in-fact on behalf of the undersigned pursuant to this Power
         of Attorney shall be in such form and shall contain such terms and
         conditions as such attorneys-in-fact may approve in such attorney-in-
         fact's discretion.

      The undersigned hereby grants to such attorneys-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of this Power of
Attorney and the rights and powers herein granted. The undersigned acknowledges
that the foregoing attorney-in-fact, in serving in such capacity at the request
of the undersigned, are not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 13 and Section 16 of the
Exchange Act.

      This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file reports or schedules under Section 13
or Section 16 of the Exchange Act with respect to the undersigned's holdings of
and transactions in securities issued by the Company, unless earlier revoked by
the undersigned in a signed writing delivered to the foregoing attorney-in-fact.


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      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of the date first written above.

                                                /s/ Susan Helfrick
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                                                Susan Helfrick