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Guarantees, Contingencies and Commitments (Tables)
 12 Months Ended
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Unconditional Purchase Obligations & Commitments
The following table shows aggregate information for certain unconditional purchase obligations and commitments at December 31, 2023, which are not included elsewhere within these Consolidated Financial Statements:
  Payments Due by Period
Total20242025202620272028Thereafter
 (In millions)
Capital expenditures$7,472 $2,371 $2,106 $1,757 $774 $371 $93 
Operating expenses762 238 107 55 50 63 249 
Transportation and related contracts2,243 298 260 286 277 261 861