<PAGE>
                                                                    EXHIBIT 10ll

         CONFIDENTIALITY, NON-COMPETITION AND NON-SOLICITATION AGREEMENT



         This Agreement is entered into as of the 21st day of May, 2001 (the
"Effective Date") by and between Kmart Corporation, a Michigan corporation (the
"Company"), and Jeff Boyer (the "Executive");


                                   WITNESSETH

WHEREAS, the Company and the Executive (individually, a "Party", and together,
the "Parties") have entered into a Severance Agreement dated May 21, 2001 (the
"Severance Agreement") which is attached to and incorporated herein as Exhibit
A;

NOW, THEREFORE, the Parties agree as follows:

I.       CASH AWARD

     In consideration of the Executive's promises set forth herein, the
Executive shall be paid a cash payment of $500,000 (the "Cash Payment") as of
the Effective Date, less applicable withholding taxes.

     In the event that the Executive's employment is terminated for any reason
on or before January 31, 2004, the Executive shall immediately forfeit this
payment. Within 15 days of such termination, the Executive shall be required to
repay the Cash Payment to the Company. If such repayment is not timely received
by the Company, the Executive agrees that, in addition to all other remedies
available to the Company, the Company shall have the following cumulative
remedies:

     (a) The Company may set off and deduct the amount of the Cash Payment, from
any moneys owing to the Executive by the Company as of the date of termination
of employment, as well as any funds held in any of the Executive's accounts
under any of the Company's nonqualified benefit plans.

     (b) The Company may set off and deduct the amount of the Cash Payment, from
the fair market value of any vested shares of Company stock held in any of the
Executive's accounts under any of the Company's nonqualified benefit plans.
"Fair market value" of the stock shall be defined as the mean of the highest
price and lowest price at which the stock shall have been sold, regular way, on
the date of termination of employment, as reported on the Composite Transactions
reporting system.

         Provided, however, notwithstanding anything else in this Agreement to
the contrary:

         (1) The Executive shall not be required to repay the Company the amount
         of the Cash Payment if the Executive's employment is terminated within
         a three year period following a Change in Control, by the Company other
         than for Cause, by the Executive for Good Reason (as such capitalized
         terms are defined in the Severance Agreement), or in the event of the
         Executive's death.



<PAGE>

         (2) The Executive shall not be required to repay the Company the amount
         of taxes required to be withheld in connection with the Cash Payment if
         the Executive's employment is terminated due to the Executive's death
         or by the Company other than for Cause or by the Executive for Good
         Reason (as such capitalized terms are defined in the Severance
         Agreement).

II.      SPECIAL RESTRICTED STOCK AWARD

         In consideration of the Executive's promises set forth herein, the
Company shall grant the Executive restricted shares of the Company's common
stock with a fair market value of $1,500,000 (the "Market Value"), as well as
the opportunity to earn an additional 300,000 performance restricted shares of
the Company's common stock subject to the Executive's attainment of applicable
performance goals.

The restricted shares shall be granted on May 21, 2001 pursuant to the
Restricted Stock Agreement, attached to and incorporated herein as Exhibit B.
The number of restricted shares shall be determined by dividing the Market Value
by the mean of the highest price and lowest price at which a share of the
Company's common stock shall have been sold, regular way, on May 21, 2001, as
reported on the Composite Transactions reporting system.

The opportunity for performance restricted shares shall be subject to the
following terms and conditions:

         (a)      The performance goals respecting Inventory Turnover, the Super
                  Service Index and Earnings before Interest and Tax approved by
                  the Compensation and Incentives Committee.

         (b)      If any of the aforesaid goal(s) are attained during the period
                  ending January 31, 2005 and thereafter continuously sustained
                  for a period of 12 months, you will be awarded a grant of
                  100,000 shares of restricted Company common stock per
                  applicable goal.

         (c)      The restricted stock shall be granted pursuant to the terms of
                  the Restricted Stock Agreement, attached to and incorporated
                  herein as Exhibit B, except that the Expiration Date shall be
                  two years from the date of grant.

III.     CONFIDENTIALITY; CO-OPERATION WITH REGARD TO LITIGATION;
         NON-DISPARAGEMENT

         (a) During the term of employment and thereafter, the Executive shall
not, without the prior written consent of the Company, disclose to anyone or
make use of any Confidential Information except in the performance of the
Executive's duties as an executive of the Company or when required to do so by
legal process, by any governmental agency having supervisory authority over the
business of the Company or by any administrative or legislative body (including
a committee thereof) that requires the Executive to divulge, disclose or make
accessible such information. If so ordered, the Executive shall give prompt
written notice to the Company in order to allow the Company the opportunity to
object to or otherwise resist such order.



                                       2
<PAGE>

         (b) During the term of employment and thereafter, Executive shall not
disclose the existence or contents of this Agreement beyond what is disclosed in
the proxy statement or documents filed with the government unless and to the
extent such disclosure is required by law, by a governmental agency, or in a
document required by law to be filed with a governmental agency or in connection
with enforcement of the Executive's rights under this Agreement. In the event
that disclosure is so required, the Executive shall give prompt written notice
to the Company in order to allow the Company the opportunity to object to or
otherwise resist such requirement. This restriction shall not apply to such
disclosure by the Executive to members of his immediate family, the Executive's
tax, legal or financial advisors, any lender, or tax authorities, or to
potential future employers to the extent necessary, each of whom shall be
advised not to disclose such information.

         (c) "Confidential Information" shall mean all information concerning
the business of the Company or any subsidiary or affiliate of the Company
relating to any of their products, product development, trade secrets,
intellectual property, marketing data, customer research and data, suppliers,
prices, finances and business plans and strategies, whether previously existing,
now existing or arising hereafter, whether conceived or developed by others or
by the Executive alone or with others, and whether or not conceived or developed
during regular working hours. Excluded from the definition of Confidential
Information is information (i) that is or becomes part of the public domain,
other than through the breach of this Agreement by the Executive or (ii)
regarding the Company's business or industry properly acquired by the Executive
in the course of his career as an executive in the Company's industry and
independent of the Executive's employment by the Company.

         (d) The Executive acknowledges that the Company has expended, and will
continue to expend, significant amounts of time, effort and money in the
procurement of its Confidential Information, that the Company has taken all
reasonable steps in protecting the secrecy of the Confidential Information, that
said Confidential Information is of critical importance to the Company and that
a violation of this Section III would seriously and irreparably impair and
damage the business of the Company.

         (e) The Executive agrees to cooperate with the Company, during the term
of employment and thereafter (including following the Executive's termination of
employment for any reason), by being reasonably available to testify on behalf
of the Company or any subsidiary or affiliate in any action, suit, or
proceeding, whether civil, criminal, administrative, or investigative, and to
assist the Company, or any subsidiary or affiliate, in any such action, suit or
proceeding, by providing information and meeting and consulting with the Board
or its representatives or counsel, or representatives or counsel to the Company,
or any subsidiary or affiliate, as reasonably requested. The Company agrees to
reimburse the Executive for all expenses actually incurred in connection with
his provision of testimony or assistance.

         (f) The Executive agrees that, during the term of employment and
thereafter (including following the Executive's termination of employment for
any reason), the Executive will not make statements or representations, or
otherwise communicate, directly or indirectly, in writing, orally, or otherwise,
or take any action which may, directly or indirectly, disparage the Company or
any subsidiary or affiliate or their respective officers, directors, employees,
advisors, businesses or reputations. Notwithstanding the foregoing, nothing in
this Agreement shall preclude either the Executive or the Company



                                       3
<PAGE>

from making truthful statements or disclosures that are required by applicable
law, regulation or legal process.

IV.      NON-COMPETITION

         (a) During the Restriction Period (as defined in Section IV (c) below),
the Executive shall not engage in Competition with the Company or any subsidiary
or affiliate. "Competition" shall mean engaging in any activity for, or being
otherwise affiliated with, a Competitor of the Company or any subsidiary or
affiliate, whether directly or indirectly, as an employee, consultant,
principal, agent, officer, director, partner, shareholder (except as a less than
one percent shareholder of a publicly traded company) or otherwise. For purposes
of this Section IV, "Competitor" shall mean an entity or enterprise whose
business is in competition with the business of the Company which operates
retail stores selling general merchandise and/or food if at least 10 of such
stores have an area of 50,000 or more square feet and at least 10 of such stores
with 50,000 or more square feet are within 25 miles of a Kmart store.

         (b) In addition to all other remedies provided for hereunder, the
Executive agrees that if the Executive shall violate any of the provisions of
this Section IV, the Company shall be entitled to an accounting and repayment of
all profits, compensation, remuneration or other benefits that the Executive may
realize arising from or related to any such violation. The Parties agree and
acknowledge that the duration, scope and geographic area of the covenant not to
compete described in Section IV (a) are, fair, reasonable and necessary in order
to protect the good will and other legitimate interests of the Company, that
adequate compensation has been received by the Executive for such obligations
and that these obligations do not prevent the Executive from earning a
livelihood. If, however, for any reason any court determines under applicable
law that the provisions in this Section IV pertaining to duration, scope and
geographic area in relation to non-competition are too broad or otherwise
unreasonable, that the consideration provided for hereunder is inadequate or
that the Executive has been prevented unlawfully from earning a livelihood
(together, such provisions being hereinafter referred to as "Restrictions"),
such Restrictions shall be interpreted, modified or rewritten, and such court is
hereby requested and authorized by the Parties to revise the Restrictions, to
include the maximum Restrictions as are valid and enforceable under applicable
law.

         (c) For purposes of this Section IV, "Restriction Period" shall mean
the period beginning with the Effective Date and ending with the earlier of (i)
18 months after the Executive's termination of employment for any reason and (2)
the occurrence of a Change in Control.

         (d) For purposes of this Agreement, a "Change in Control" is deemed to
have occurred as of the first day that any one or more of the following
conditions have been satisfied:

             (1) The "Beneficial Ownership" of securities representing more than
             thirty-three percent (33%) of the combined voting power of the
             Company is acquired by any "person" as defined in Sections 13(d)
             and 14(d) of the Exchange Act (other than the Company, any trustee
             or other fiduciary holding securities under an employee benefit
             plan of the company, or any corporation owned, directly or
             indirectly, by the stockholders of the company in substantially the
             same proportions as their ownership of stock of the Company); or



                                       4
<PAGE>

             (2) The stockholders of the Company approve a definitive agreement
             to merge or consolidate the Company with or into another
             corporation or to sell or otherwise dispose of all or substantially
             all of its assets, or adopt a plan of liquidation; or

             (3) During any period of three consecutive years, individuals who
             at the beginning of such period were members of the Board cease for
             any reason to constitute at least a majority thereof (unless the
             election, or the nomination for election by the Company's
             stockholders, of each new director was approved by a vote of at
             least a majority of the directors then still in office who were
             directors at the beginning of such period or whose election or
             nomination was previously so approved.

V.       NON-SOLICITATION

         During the period beginning with the Effective Date and ending 18
months following the termination of the Executive's employment for any reason,
the Executive shall not recruit, solicit the employment or services of, or
induce employees of the Company or any subsidiary or affiliate to terminate
their employment, nor shall the Executive solicit or encourage any of the
Company's or any subsidiary's or affiliate's non-retail customers, or any
corporation or other entity in a joint venture relationship (directly or
indirectly) with the Company or any subsidiary or affiliate, to terminate or
diminish their relationship with the Company or any subsidiary or affiliate or
to violate any agreement with any of them.

VI.      REMEDIES

         If the Executive breaches any of the provisions contained in Sections
III, IV or V above, the Company shall have (a) the right to immediately
terminate all payments and benefits due under this Agreement, the Severance
Agreement and any other outstanding stock awards or stock agreements, between
the Company and the Executive and (b) the right to seek injunctive relief. The
Executive acknowledges that such a breach of Sections III, IV or V, would cause
irreparable injury and that money damages would not provide an adequate remedy
for the Company; provided, however, that the foregoing shall not prevent the
Executive from contesting the issuance of any injunction on the ground that no
violation or threatened violation of Section III, IV or V has occurred.

VII.     RESOLUTION OF DISPUTES

         Any controversy or claim arising out of relating to this Agreement or
any breach or asserted breach hereof or questioning the validity and binding
effect hereof arising under or in connection with this Agreement or any
agreement executed pursuant hereto, other than seeking injunctive relief under
Section IV, shall be resolved by binding arbitration, to be held at an office
closest to the Company's principal offices in accordance with the rules and
procedures of the American Arbitration Association. Judgment upon the award
rendered by the arbitrator(s) may be entered in any court having jurisdiction
thereof. All costs and expenses of any arbitration or court proceeding
(including fees and disbursements of counsel) shall be borne by the respective
party incurring such costs and expenses, but the Company shall reimburse the
Executive for such reasonable costs and expenses in the event the Executive
substantially prevails in



                                       5
<PAGE>

such arbitration or court proceeding. Notwithstanding the foregoing, following a
Change in Control, all reasonable costs and expenses (including fees and
disbursements of counsel) incurred by the Executive pursuant to this section VII
shall be paid on behalf of or reimbursed to the Executive promptly by the
Company, provided, however, that no reimbursement shall be made of such expenses
if and to the extent the arbitrator(s) determine(s) that any of the Executive's
litigation assertions or defenses were in bad faith or frivolous.

VIII.    EFFECT OF AGREEMENT ON OTHER BENEFITS

         Except as specifically provided in this Agreement, the existence of
this Agreement shall not be interpreted to preclude, prohibit or restrict the
Executive's participation in any other employee benefit or other plans or
programs in which the Executive currently participates.

IX.      ASSIGNABILITY:  BINDING NATURE

         This Agreement shall be binding upon and inure to the benefit of the
Parties and their respective successors, heirs and permitted assigns. No rights
or obligations of the Executive under this Agreement may be assigned or
transferred by the Executive other than the Executive's rights to compensation
and benefits, which may be transferred only by will or operation of law.

X.       REPRESENTATION

         The Company represents and warrants that it is fully authorized and
empowered to enter into this Agreement and that the performance of its
obligations under this Agreement will not violate any agreement between it and
any other person, firm or organization.

XI.      ENTIRE AGREEMENT

         This Agreement contains the entire understanding and agreement between
the Parties concerning the subject matter hereof and, as of the Effective Date,
supersedes all prior agreements, understandings, discussions, negotiations and
undertakings, whether written or oral, between the Parties with respect to the
subject matter hereof.

XII.     AMENDMENT OR WAIVER

         No provision in this Agreement may be amended unless such amendment is
agreed to in writing and signed by the Executive and an authorized officer of
the Company. Except as set forth herein, no delay or omission to exercise any
right, power or remedy accruing to either Party shall impair any such right,
power or remedy or shall be construed to be a waiver of or an acquiescence to
any breach hereof. No waiver by either Party of any breach by the other Party of
any condition or provision contained in this Agreement to be performed by such
other Party shall be deemed a waiver of a similar or dissimilar condition or
provision at the same or any prior or subsequent time. Any waiver must be in
writing and signed by the Executive or an authorized officer of the Company, as
the case may be.



                                       6
<PAGE>

XIII.    SEVERABILITY

         In the event that any provision or portion of this Agreement shall be
determined to be invalid or unenforceable for any reason, in whole or in part,
the remaining provisions of this Agreement shall be unaffected thereby and shall
remain in full force and effect to the fullest extent permitted by law.

XIV.     SURVIVORSHIP

         The respective rights and obligations of the Parties hereunder shall
survive any termination of the Executive's employment to the extent necessary to
the intended preservation of such rights and obligations.

XV.      GOVERNING LAW/JURISDICTION

         This Agreement shall be governed by and construed and interpreted in
accordance with the internal laws of Michigan without reference to principles of
conflicts of laws. Except as provided in Section VII, the Company and the
Executive hereby consent to the jurisdiction of any or all of the following
courts for purposes of resolving any dispute under this Agreement: (I) the
United States District Court of Detroit, Michigan or (ii) the State of Michigan
Courts of Oakland County, Michigan. The Company and the Executive further agree
that any service of process or notice requirements in any such proceeding shall
be satisfied if the rules of such court relating thereto have been substantially
satisfied. The Company and the Executive hereby waive, to the fullest extent
permitted by applicable law, any objection which it or the Executive may now or
hereafter have to such jurisdiction and any defense of inconvenient forum.

XVI.     CONFLICTS AMONG AGREEMENTS

         To the extent that there is any conflict between or among the Severance
Agreement and/or any Restricted Stock Agreement executed pursuant hereto and
this Agreement, this Agreement shall govern.

XVII.    NOTICES

         Any notice given to a Party shall be in writing and shall be deemed to
have been given when delivered personally or sent by certified or registered
mail, postage prepaid, return receipt requested, duly addressed to the Party
concerned at the address indicated below or to such changed address as such
Party may subsequently give such notice of:

                  If to the Company:         Kmart Corporation
                                             3100 West Big Beaver Road
                                             Troy, MI 48084-3163
                                             Attention: Vice President and
                                                        Secretary

                  If to the Executive:
                                             -----------------------------------
                                             -----------------------------------
                                             -----------------------------------



                                       7
<PAGE>

XVIII.   HEADINGS

         The headings of the sections contained in this Agreement are for
convenience only and shall not be deemed to control or affect the meaning or
construction of any provision of this Agreement.

XIX.     COUNTERPARTS

         This Agreement may be executed in two or more counterparts.

         IN WITNESS WHEREOF, the undersigned have executed this Agreement as of
the Effective Date.




                                            KMART CORPORATION
-----------------------------
Executive


                                            By:
                                               ---------------------------------
                                            Name:
                                                 -------------------------------
                                            Title: EVP and Chief Administrative
                                                   Officer



                                       8