<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                         654,500
<SECURITIES>                                    22,600
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<ALLOWANCES>                                    47,300
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<PP&E>                                      15,401,700
<DEPRECIATION>                               8,400,100
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<CURRENT-LIABILITIES>                        2,825,400
<BONDS>                                      1,424,800
<PREFERRED-MANDATORY>                          178,900
<PREFERRED>                                          0
<COMMON>                                        55,800
<OTHER-SE>                                   4,180,500
<TOTAL-LIABILITY-AND-EQUITY>                13,914,200
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<CGS>                                        2,346,500
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<EPS-PRIMARY>                                     1.01
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