<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS FOR THE PERIOD ENDED MARCH 31, 1997,
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000,000
       
                                            
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>               MAR-31-1997
<PERIOD-END>                    MAR-31-1997
<CASH>                                             303
<SECURITIES>                                         0
<RECEIVABLES>                                      606
<ALLOWANCES>                                        25
<INVENTORY>                                        537
<CURRENT-ASSETS>                                 1,856
<PP&E>                                          16,094
<DEPRECIATION>                                   7,870
<TOTAL-ASSETS>                                  15,130
<CURRENT-LIABILITIES>                            1,793
<BONDS>                                          4,875
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                      2,725
<COMMON>                                            66
<OTHER-SE>                                       2,426
<TOTAL-LIABILITY-AND-EQUITY>                    15,130
<SALES>                                          1,917
<TOTAL-REVENUES>                                 1,950
<CGS>                                            1,327
<TOTAL-COSTS>                                    1,327
<OTHER-EXPENSES>                                    31
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 108
<INCOME-PRETAX>                                    270
<INCOME-TAX>                                       161
<INCOME-CONTINUING>                                127
<DISCONTINUED>                                      52
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       179
<EPS-PRIMARY>                                      .48
<EPS-DILUTED>                                      .46