SECURITIES AND EXCHANGE COMMISSION
                      Washington, DC 20549


                            Form 11-K
                          ANNUAL REPORT
                Pursuant to Section 15(d) of the
                 Securities Exchange Act of 1934

(X)  ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE

     SECURITIES EXCHANGE ACT OF 1934 (NO FEE REQUIRED, EFFECTIVE

     OCTOBER 7, 1996)

     For the Fiscal Year Ended December 31, 2003.

                             OR

( )  TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE

     SECURITIES EXCHANGE ACT OF 1934 (NO FEE REQUIRED)

     For the transition period from _______ to _______

     Commission File Number                 333-53139
                                            ---------


          A.   Full title of the Plan and the address of the
     Plan, if different from that of the issuer named below:


             MILLENNIUM CHEMICALS INC.
          SALARY AND BONUS DEFERRAL PLAN

                        (the "Plan")


          B.   Name of the issuer of the securities held
     pursuant to the Plan and the address of its principal
     executive office:


                  Millennium Chemicals Inc.
                  20 Wight Avenue, Suite 100
                  Hunt Valley, Maryland  21030





Millennium Chemicals Inc.
Salary and Bonus Deferral Plan
December 31, 2003 and 2002



                 Millennium Chemicals Inc.
              Salary and Bonus Deferral Plan
     Table of Contents to the Financial Statements



                                                        Page

Financial Statements:

Statements of Financial Condition ....................... 1
Statements of Income and Changes in Plan Equity.......... 2
Notes to Financial Statements............................ 3




Millennium Chemicals Inc.

Salary and Bonus Deferral Plan
Statements of Financial Condition

                                                  December 31,
                                         ---------------------------
                                              2003           2002
                                         -----------    ------------
Assets
------
 Investments
  Investment in Company common stock,
               at fair value (Note 4)    $ 5,328,293    $ 4,194,193
                                         -----------    ------------
  Total investments                        5,328,293      4,194,193
                                         -----------    ------------

 Receivables
  Employee contributions                         -           27,158
  Employer contributions                         -            1,222
                                         -----------    ------------
  Total receivables                              -           28,380

                                         -----------    ------------
 Cash                                            -              832
                                         -----------    ------------
  Total Assets                             5,328,293      4,223,405
                                         -----------    ------------

Liabilities
-----------
 Accounts payable                                -             (832)
                                         ------------   -------------
  Total Liabilities                              -             (832)
                                         ------------   -------------
                                         ------------   -------------
  Plan Equity                            $ 5,328,293    $ 4,222,573
                                         ============   =============


The accompanying notes are an integral part of these financial statements.

                         1


Millennium Chemicals Inc.

Salary and Bonus Deferral Plan
Statements of Income and Changes in Plan Equity
For the Years Ended December 31, 2003 and 2002
                                                      December 31,
                                             ----------------------------
                                                   2003          2002
                                             -------------  -------------

Additions
---------

 Dividends and interest                       $   115,034    $   232,995
 Participant contributions                            -           33,845
 Unrealized appreciation                        1,403,682              -
 Employer contributions                               -            1,523
                                              -------------  ------------
   Total additions                              1,518,716        268,363
                                              -------------  ------------

Deductions
----------
 Realized loss                                $    87,634    $   246,099
 Unrealized depreciation                              -        1,113,880
 Distributions to participants                    325,362        583,674
                                          -----------------  ------------
   Total deductions                        -      412,996      1,943,653
                                          -----------------  ------------

 Net increase (decrease) during year       -    1,105,720     (1,675,290)

Plan equity, beginning of year                  4,222,573      5,897,863
                                              -------------  ------------
Plan equity, end of year                      $ 5,328,293    $ 4,222,573
                                              =============  ============



The accompanying notes are an integral part of these financial statements.

                         2



Millennium Chemicals Inc.

Salary and Bonus Deferral Plan
Notes to Financial Statements
---------------------------------------------------------------

1.  Plan Description

  On October 8, 1996, Millennium Chemicals Inc. (the "Company")
  adopted the Millennium Chemicals Inc. Salary and Bonus
  Deferral Plan (the "Plan") for the benefit of a select group
  of management and highly compensated employees.  The Plan is
  intended to be an unfunded plan of deferred compensation and
  is not intended to be covered by ERISA.

  The purpose of the Plan was to permit eligible employees to
  defer from 5% to 100% of their salary and up to 100% of their
  bonus (both in 5% increments). The deferred amount was
  invested in common stock of the Company.  Participants were
  immediately vested in their contributions and earnings
  thereon, subject to applicable withholding taxes. The Company
  matched 4.5% of employee contributions.  A participant was
  immediately vested in Company contributions and earnings.

  The Plan was administered by a committee of three or more
  employees of the Company appointed by the Board of Directors
  (the "Committee").  Merrill Lynch Trust Company (the
  "Trustee") acted as trustee and recordkeeper for the Plan.
  On October 1, 2003, Fidelity Management Trust Company became
  trustee and recordkeeper for the Plan.

  Participation in the Plan is limited to eligible individuals,
  other than nonresident aliens of the United States receiving
  no United States source income within the meaning of sections
  861(a)(3) or 911(d)(2) of the Internal Revenue Code,
  designated by the Committee, who are employees of a unit of
  the Company (or of one of its subsidiaries) which has adopted
  the Plan.

  Effective January 1, 2003, no future salary or bonus deferrals
  were permitted under this plan.

  Distributions
  Deferred accounts will be paid in shares of common stock to
  the participant or his or her beneficiary, except that awards
  deferred pursuant to special elections will continue to be
  subject to the forfeiture provisions of the incentive plan
  under which the award was granted. Deferred amounts generally
  will be paid in the form of (i) a lump sum payment, (ii) in
  five approximately equal annual installments or (iii) in ten
  approximately equal annual installments, as elected by the
  participant at the time of the deferred salary election,
  deferred bonus election or special election; provided,
  however, that payments shall only be in a single lump sum in
  the case that payment commences (i) while the participant is
  still an employee of the Company or of a subsidiary of the
  Company or (ii) due to termination for cause.

  If the participant suffers permanent or total disability,
  dies, or terminates employment prior to the deferral date,
  then, except in the case of termination for cause, payment
  shall be made (or begin to be made) following the occurrence
  of the event making payment necessary or, if so elected in
  the deferred salary election and/or deferred bonus election,
  on January 31st of the calendar year immediately following
  such event.

  The Company reserves the right to amend, modify, or terminate
  the Plan at any time.  No amendment to or termination of the
  Plan will impair any rights to benefits that have accrued.
  Upon a Change of Control (as defined by Plan documents), the
  amount of a participant's Deferred Accounts shall be
  distributed to such participant as soon as practicable
  thereafter and any Deferred Salary Election and/or Deferred
  Bonus Election shall terminate and be null and void following
  such Change of Control.

                         3

  Participants should refer to the Plan document for a more
  complete description of the Plan's provisions.


2.  Summary of Significant Accounting Policies

  Method of Accounting
  The Plan's financial statements are prepared on the accrual
  basis of accounting, except for benefit payments, which are
  recorded when paid.  The preparation of the Plan financial
  statements in conformity with generally accepted accounting
  principles requires the Company to make estimates and
  assumptions that affect the amounts reported in the financial
  statements and accompanying notes.  Actual results could
  differ from these estimates.

  Investment Valuation and Income Recognition
  The common stock of the Company is valued at fair value which
  is determined based on quoted market prices.

  Dividend income is accrued on the ex-dividend date.

  Purchases and sales of common stock and realized gains and
  losses are recorded on a trade-date basis.

  Payment of Benefits
  Distributions to participants are recorded upon actual
  payment of benefits. There were no distributions of the
  Company's common stock approved and payable at December 31,
  2003 and December 31, 2002.


3.  Administration of Plan Assets

  The Plan's assets, which consist of the Company's
  common stock, are held by the Trustee of the Plan.
  Contributions are held and managed by the Trustee, which
  invests cash received and dividend income and makes
  distributions to the participants.

  Certain administrative functions are performed by officers or
  employees of the Company or its subsidiaries.  No such
  officer or employee receives compensation from the Plan.
  Administrative expenses for the Trustee's fees are paid by
  the Company.

                        4

4. Investments

   The Plan's investments were:

                                               December 31,
                                          2003             2002
                                     ------------     -----------
Number of Shares of Company Stock        420,212          440,567
                                     ------------     -----------
Historical Cost                      $ 8,637,853      $ 8,979,133
                                     ------------     -----------
Market                               $ 5,328,293      $ 4,194,193
                                     ------------     -----------



                       5


5. Subsequent Events

On March 29, 2004, Lyondell Chemical Company ("Lyondell") and the Company
announced that their Boards of Directors had approved, and the companies
had executed, a definitive agreement for a stock-for-stock business
combination of the companies, expected to be tax-free to the Company,
Lyondell and their respective shareholders.

The Company's shareholders will receive between 0.95 and 1.05 shares of
Lyondell common stock for each share of the Company's common stock,
depending on the volume-weighted average price for the Lyondell shares
for the 20 trading days ending on the third trading day before closing.
The Company's shareholders will receive 0.95 shares of Lyondell stock
if the average Lyondell stock price is $20.50 per share or greater and
1.05 shares if it is $16.50 per share or less.  Between the two prices,
the exchange ratio varies proportionately.  The new shares will be
entitled to receive the same cash dividend as existing outstanding
Lyondell shares.

The transaction is subject to customary conditions, including approval
by both companies' shareholders and receipt of required regulatory
approvals and amendments to each of Lyondell's and the Company's credit
agreements and Lyondell's receivables sales facility.  The transaction
is expected to close in the third quarter of 2004.  The transaction
involves the merger of Millennium Subsidiary LLC, a newly created
subsidiary of the Company, into the Company, in which the Company's
common stock now held by its public shareholders will be converted into
common stock of Lyondell, and the Company's preferred stock to be issued
to Lyondell immediately before the merger will be converted into common
stock of the surviving entity.  As a result, the Company will become a
wholly-owned subsidiary of Lyondell.

As with all of the Company's outstanding common stock prior to the business
combination, upon the closing of the transaction, any of the Company's
common stock held by the Plan will be converted into shares of Lyondell
common stock pursuant to the predetermined exchange ratio as described above.

                       5


                        SIGNATURES



     Pursuant to the requirements of the Securities Exchange Act
of 1934, the trustees (or other persons who administer the Plan)
have duly caused this annual report to be signed by the
undersigned thereunto duly authorized.


                        MILLENNIUM CHEMICALS INC. SALARY AND
                        BONUS DEFERRAL PLAN



Dated: June 28, 2004      By:  /s/ C. William Carmean
                             -----------------------------------
                                 C. William Carmean
                                 Member, Benefits Administration
                                 Committee