SIMONWILLIAMPOA

POWER OF ATTORNEY

The undersigned hereby designates Gordon Y. Allison, Geoffrey W.
Edwards, Jennifer F. Rudolph, and Erron W. Smith or any one of
them acting singly and with full power of substitution, as the
undersigned?s true and lawful attorney in fact to:

(1) prepare, execute in the undersigned?s name and on the
undersigned?s behalf, and submit to the U.S. Securities and Exchange
Commission (the ?SEC?) a Form ID, including amendments thereto, and
any other documents necessary or appropriate to obtain codes,
passwords, and passphrases enabling the undersigned to make filings
with the SEC of reports required by Section 16(a) of the Securities
Exchange Act of 1934, as amended, and Rule 144 of the Securities Act
of 1933, as amended, or any rule or regulation of the SEC;

(2) to execute and file on the undersigned?s behalf all Forms 3, 4,
5, and 144 (including any amendments thereto) that the undersigned
may be required to file with the SEC and other regulatory bodies as
a result of the undersigned?s ownership of or transactions in
securities of Wal-Mart Stores, Inc., including any filing required
as a result of any indirect ownership of securities attributed to
the undersigned under applicable law; and

(3) 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 Form 3, 4, 5, or 144, complete and execute any
amendment or amendments thereto, and timely file such form with
the SEC and any securities exchange or similar authority.

The authority of Gordon Y. Allison, Geoffrey W. Edwards, Jennifer F.
Rudolph, or Erron W. Smith under this Power of Attorney shall continue
until the undersigned is no longer required to file Forms 3, 4, 5,
and 144 with regard to the undersigned?s ownership of or transactions
in securities of Wal-Mart Stores, Inc., unless earlier revoked in writing.
The undersigned acknowledges that neither Wal-Mart Stores, Inc.,
Gordon Y. Allison, Geoffrey W. Edwards, Jennifer F. Rudolph nor Erron W.
Smith are assuming any of the undersigned?s responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934, as amended,
the Securities Act of 1933, as amended, or any rule or regulation of
the SEC.

Date: June 29, 2010 /s/ William S. Simon
William S. Simon