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                 333-13143
                                    ____________________

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


             MILLENNIUM SAVINGS AND INVESTMENT 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








                 Annual Report on Form 11-K

                           Item 4

                    Financial Statements

           Millennium Savings and Investment Plan



                 December 31, 2003 and 2002





           Millennium Savings and Investment Plan

      Table of Contents to the Financial Statements and
                   Supplemental Schedules



                                                        Page

Report of Independent Registered Public Accounting Firm    2

Financial Statements:

Statements of Net Assets Available for Benefits
 as of December 31, 2003 and 2002                          3
Statement of Changes in Net Assets Available for Benefits
 for the Year Ended December 31, 2003                      4
Notes to Financial Statements                              5

Supplemental Schedules*:

Schedule H, Line 4i - Schedule of Assets
 (Held at End of Year)                                    10
Schedule H, Line 4j - Schedule of Reportable Transactions 11



* Other supplemental schedules required by Section 2520.103-
10 of the Department of Labor's Rules and Regulations for
Reporting and Disclosure under The Employee Retirement
Income Security Act of 1974 have been omitted because they
are not applicable.


                      1



    Report of Independent Registered Public Accounting Firm

To the Participants and Administrator of
Millennium Savings and Investment Plan

In our opinion, the accompanying statements of net assets
available for benefits and the related statement of changes in
net assets available for benefits present fairly, in all
material respects, the net assets available for benefits of
the Millennium Savings and Investment Plan (the "Plan") at
December 31, 2003 and 2002, and the changes in net assets
available for benefits for the year ended December 31, 2003 in
conformity with accounting principles generally accepted in
the United States of America.  These financial statements are
the responsibility of the Plan's management.  Our
responsibility is to express an opinion on these financial
statements based on our audits.  We conducted our audits of
these statements in accordance with the standards of the
Public Company Accounting Oversight Board (United States).
Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial
statements are free of material misstatement.  An audit
includes examining, on a test basis, evidence supporting the
amounts and disclosures in the financial statements, assessing
the accounting principles used and significant estimates made
by management, and evaluating the overall financial statement
presentation.  We believe that our audits provide a reasonable
basis for our opinion.

Our audits were conducted for the purpose of forming an
opinion on the basic financial statements taken as a whole.
The supplemental Schedules of Assets (Held at End of Year) and
of Reportable Transactions are presented for the purpose of
additional analysis and are not a required part of the basic
financial statements but are supplementary information
required by the Department of Labor's Rules and Regulations
for Reporting and Disclosure under the Employee Retirement
Income Security Act of 1974.  These supplemental schedules are
the responsibility of the Plan's management.  The supplemental
schedules have been subjected to the auditing procedures
applied in the audits of the basic financial statements and,
in our opinion, are fairly stated in all material respects in
relation to the basic financial statements taken as a whole.


PricewaterhouseCoopers LLP
Philadelphia, PA
June 28, 2004


                      2


                   Millennium Savings and Investment Plan
             Statements of Net Assets Available for Benefits
                            (dollars in millions)

                                                    December 31,
                                                 -----------------
                                                   2003      2002
                                                 -------    -------

Assets
  Investments:
  Common Stock                                   $  2.6    $  2.0
  Millennium Chemicals Inc. common stock           22.8      19.7
  Mutual Funds                                     50.0      33.4
  Short-Term Investments                           27.6      30.3
  Participant Loans                                 3.5       3.2
                                                 -------    -------
    Total Investments                             106.5      88.6

Receivables:
  Participants' Contributions                       0.2       -
  Employer's Contributions                          0.2       -
                                                 -------   -------
    Total Receivables                               0.4       -

                                                 -------   -------
Net Assets Available for Benefits                $106.9    $ 88.6
                                                 =======   =======


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

                      3


                   Millennium Savings and Investment Plan
        Statement of Changes in Net Assets Available for Benefits
                    For the Year Ended December 31, 2003
                          (dollars in millions)


Investment Income:
  Dividend income                                         $   0.9
  Interest income                                             0.2
  Net appreciation in fair value of investments              18.0
                                                          -------
    Total Investment Income                                  19.1
                                                          -------

Contributions:
  Participants' contributions                                 8.2
  Employer's contributions                                    4.2
                                                          -------
    Total Contributions                                      12.4
                                                          -------
Total Additions                                              31.5
                                                          -------

Benefits paid to participants                               (13.2)

                                                          -------
Net increase                                                 18.3
                                                          -------

Net Assets Available for Benefits
at beginning of year                                         88.6
                                                          -------
at end of year                                            $ 106.9
                                                          =======


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

                      4



            Millennium Savings and Investment Plan
                 Notes to Financial Statements

1. Description of the Plan

The  following  description  of  the  Millennium  Savings  and
Investment   Plan   (the   "Plan")   provides   only   general
information.   Participants should refer to the Plan  document
for a more complete description of the Plan's provisions.

General
The  Plan  is  a  defined contribution plan available  to  all
United  States  employees, 21 years or  older,  of  Millennium
Chemicals Inc. (the "Company") who are regular, full-time, non-
represented  employees; part-time employees that  have  worked
1,000   hours;  and  certain  regular,  full-time  represented
employees  that  are  covered under  a  collective  bargaining
agreement   that  allows  eligibility  into   the   Plan.    A
participant is eligible to participate effective immediately.

Contributions
Each  year, participants may contribute up to 30% of  eligible
compensation in 1% increments for contribution into  the  Plan
on  a  pre-tax  basis.  Prior to January 1, 2003, participants
could contribute up to 17% of eligible compensation.  The Plan
sponsor matches 75% of the first 6% of employee contributions.
The  Company contribution is funded with Millennium  Chemicals
Inc.  common  stock. Contributions are recorded when  withheld
from  participants by the Plan sponsor and are deposited twice
each  month. Effective January 1, 2003, participants have  the
choice  to  retain  their  company match  account  within  the
Millennium  Chemicals  Stock  Fund,  or  sell  the  stock  and
transfer the proceeds into one or more of the other investment
options  offered by the Plan, subject to Plan provisions.  The
maximum  pre-tax contribution allowed by the Internal  Revenue
Service   was   $12,000  and  $11,000  for  2003   and   2002,
respectively.

Vesting
Participants  are  immediately vested in their  contributions,
company contributions and earnings thereon.

Trust
Fidelity   Management  Trust  Company  ("Fidelity")   is   the
recordkeeper and trustee of the Plan.

Distributions and Loans
Distributions of any participant's vested account balance  may
be   made   upon   the  participant  attaining   certain   age
requirements,  termination  of  employment,  death,  permanent
disability, termination of the Plan or a change in control  as
defined  in the Plan document.  Participants are permitted  to
make   hardship  withdrawals  if  certain  criteria  are  met.
Generally, only one withdrawal of any type is allowed in a 12-
month period.

Participants  may  borrow against their account  balance.   The
minimum  amount  a  participant may borrow  is  $1,000.   Total
loans  to a participant cannot exceed the lesser of $50,000  or
50%  of  the participant's account balance.  The amount of  any
loan will be withdrawn in a ratio that is proportionate to  the
participant's  balance in each investment  fund.   Loans  shall
bear  interest at the prime lending rate (at the  date  of  the
loan)  plus 1% and are repayable within 5 years from  the  date
of  borrowing, with the exception of loans in excess of $15,000
used  to acquire a primary residence, which are repayable  over
a  period  of  up to 10 years.  As loans are repaid,  both  the
principal  and  interest  are deposited  to  the  participant's
current   investment   fund  elections.    A   portion   of   a
participant's  investment account is pledged as collateral  for
the loan.

                      5

2.  Summary of Significant Accounting Policies

Basis of Accounting
The  financial  statements of the Plan are prepared  under  the
accrual  method  of  accounting in accordance  with  accounting
principles generally accepted in the United States of America.

Valuation of Investments and Income Recognition
The  Plan's investments are stated at fair value. Quoted market
prices are used to value investments. For those securities with
no  quoted  market  prices,  fair value  is  estimated  by  the
Trustee.  Shares of mutual funds are valued at  the  net  asset
value of shares held by the Plan at year end.

The  Plan  sponsor, the Benefits Administration  Committee  and
Plan  Trustee  do  not take responsibility for  the  investment
decisions of individual participants.

Purchases  and sales of securities are recorded on a trade-date
basis.   Dividend  income is recorded on the ex-dividend  date.
Interest   income   is   accrued  as  earned.    Capital   gain
distributions are included in dividend income.

Benefit Payments
Benefit payments are recorded when paid.

Administrative Expenses
Trustee  and  Plan  administration expenses  are  paid  by  the
Company.  Transaction fees are paid by the participant.

Use of Estimates
The  preparation of the Plan financial statements in conformity
with  accounting principles generally accepted  in  the  United
States  of  America  requires the Plan  administrator  to  make
estimates  and assumptions that affect the amounts reported  in
the   financial  statements  and  accompanying  notes.   Actual
results could differ from these estimates.

Risks and Uncertainties
The  Plan  provides  for various investment options  in  funds,
which  includes  a combination of stocks, bonds,  fixed  income
securities, mutual funds and other investment securities.   Due
to  the  level  of  risk  associated  with  certain  investment
securities and the level of uncertainty related to the  changes
in   the  value  of  investment  securities,  it  is  at  least
reasonably  possible that changes in risks  in  the  near  term
would materially affect participant's account balances and  the
amounts  reported in the statement of net assets available  for
benefits  and the statement of changes in net assets  available
for benefits.

3.  Plan Termination

Although  the  Plan  sponsor has not expressed  any  intent  to
terminate  the  Plan, it has the right to do so  at  any  time,
subject to the provisions of ERISA.



                      6

4.  Reconciliation of Financial Statements to Form 5500

The following is a reconciliation of net assets available for
benefits as reported in these financial statements to the Form
5500:

                                           December 31, 2003
                                          ------------------
         Net assets available for
           benefits as reported in these
           financial statements                 $ 106.9

         Less:

         Loan amounts that have been
           deemed distributed                 -
                                          ------------------
         Net assets available for
           benefits per Form 5500               $ 106.9
                                          ==================


5.  Investments in Excess of 5% of Assets

The following individual investments represented more than 5%
of Plan assets at December 31, 2003:

Fidelity Retiree Money Market Fund......................$ 26.5
Millennium Chemicals Inc. Stock.........................  22.8
Fidelity Mid-Cap Fund...................................  10.7
Spartan US Equity Index Fund............................   8.2
Fidelity Freedom 2030 Fund..............................   7.1

The following individual investments represented more than 5%
of Plan assets at December 31, 2002:

Fidelity Retiree Money Market Fund......................$ 28.9
Millennium Chemicals Inc. Stock.........................  19.7
Fidelity Mid-Cap Fund...................................   8.0
Fidelity Freedom 2030 Fund..............................   5.8
Spartan US Equity Index Fund............................   5.6

During 2003, the Plan's investments (including gains and losses on
investments bought, sold, and held during the year) appreciated in
value by $18.0 as follows:

     Common stock                     $         .7
     Millennium Chemicals Inc.                 6.7
     common stock
     Mutual funds                             10.3
     Short-term investments                     .3
                                     -------------
                                      $       18.0
                                     =============

The employer matching portion of the Millennium Chemicals Stock
Fund is non-participant directed, except as noted in Note 1.

                      7

6.  Nonparticipant-Directed Investments

Information about the net assets and the significant components of
the changes in net assets relating to the nonparticipant-directed
investments is as follows:

                                             December 31,
                                    -----------------------------
                                          2003             2002
                                    ------------     ------------
        Net Assets:
        Millennium Chemicals Inc.
          common stock               $     22.8       $     19.7
        Short-Term investments               .3               .5
                                    ------------     ------------
                                     $     23.1       $     20.2
                                    ============     ============



                                     Year Ended
                                    December 31,
                                        2003
                                    ------------
          Changes in Net Assets:
           Net appreciation          $      6.7
           Contributions                    4.7
           Benefits paid                   (2.8)
           Interfund transfers             (5.7)
                                    ------------
                                     $      2.9
                                    ============


7.  Related-Party Transactions

Certain Plan investments are shares of mutual funds managed  by
Fidelity,  trustee and recordkeeper of the Plan, and shares  of
the  Company's  common stock, sponsor of the  Plan,  therefore,
these transactions qualify as party-in-interest transactions.

8.  Tax Status

The  Internal  Revenue Service (IRS) has issued a determination
letter  dated  December  2,  2002,  indicating  that  the  Plan
qualifies  under  Section 401(a) of the Internal  Revenue  Code
(IRC)  and,  therefore, the Plan is not subject  to  tax  under
Section  501(a) of the IRC.  Although the Plan has been amended
since receiving the determination letter, the Plan Sponsor  and
the  Plan's  tax counsel believe that the Plan is designed  and
operated in compliance with the applicable requirements of  the
IRC.   Accordingly, no provision for federal income  taxes  has
been made.

                      8


9. 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.


                      9


           Schedule H, Line 4i - Schedule of Assets (Held At End of Year)
                                   December 31, 2003

                            Description of Investments
   Identity of Issuer,      Including Maturity Date,
   Borrower or Similar      Rate of Interest Par or                     Market
          Party                  Maturity Value             Cost        Value
------------------------  ----------------------------- -----------  ----------
 BROKERAGELINK
   Common Stock                                                      $2,581,080
   Mutual Funds                                                       3,172,262
   Government Debt                                                       12,829
   Rights and Warrants                                                    1,334
   Cash and Money Market                                                854,378
*Millennium Chemicals
     Inc. Stock           Common Stock                  $26,495,615  22,842,754
 PIMCO Total Return Adm   Registered Investment Company               2,340,596
 PIMCO High Yield Adm     Registered Investment Company                 470,523
 LM Value Trust FI CL     Registered Investment Company                 898,821
*Fidelity Equity Inc.     Registered Investment Company                 909,366
*Fidelity Growth Co       Registered Investment Company                 997,572
*Fidelity Grow & Inc.     Registered Investment Company                 663,685
*Fidelity Low PR STK      Registered Investment Company               2,804,165
*Fidelity Diversity Intl  Registered Investment Company               4,967,967
*Fidelity Mid-Cap Stock   Registered Investment Company              10,658,929
*Fidelity Freedom Income  Registered Investment Company                 141,275
*Fidelity Freedom 2000    Registered Investment Company                 230,762
*Fidelity Freedom 2010    Registered Investment Company               2,239,505
*Fidelity Freedom 2020    Registered Investment Company               4,189,130
*Fidelity Freedom 2030    Registered Investment Company               7,081,173
*Fidelity Retirement
      Money Market        Registered Investment Company              26,458,947
 Spartan US Equity Index  Registered Investment Company               8,162,218
*Fidelity Freedom 2040    Registered Investment Company                  64,576
 Short Term Investments                                                 310,709
 Participant loans        Interest rates ranging from                 3,487,961
                          4.75% - 10.5%, maturity dates              ----------
                          ranging from July 16, 2004
                          to May 13, 2013

                                                                   $106,542,517
                                                                   ============



 * Indicates a party-in-interest as defined by ERISA.

 Information certified as accurate and complete by Fidelity Management
 Trust Company.

                      10


Millennium Savings and Investment Plan
Schedule H, Line 4j - Schedule of Reportable Transactions -
Cumulative Transactions by Issue
December 31, 2003
--------------------------------------------------------------------------------


                                   Disposed                      Acquired
                        ------------------------------  ------------------------
  Security Description  Sales   Proceeds  Gain/ (Loss)     Purchases        Cost
  --------------------  -----  ---------  ------------  ------------  ----------
* Millennium Chemical
     Common Stock         109  8,182,015   (4,363,538)            36   5,230,803



* Indicates a party-in-interest as defined by ERISA.

                      11



                                  SIGNATURES


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



                         MILLENNIUM SAVINGS & INVESTMENT PLAN



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






EXHIBIT INDEX



EXHIBIT                                                         PAGE
-------                                                         ----

23     Consent of PricewaterhouseCoopers LLP,
       independent accountants, Philadelphia, Pennsylvania