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Note 6 - Other Income (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Other Nonoperating Income, by Component [Table Text Block]

Millions

 

2023

  

2022

  

2021

 

Real estate income [a] [b]

 $414  $381  $263 

Net periodic pension benefit/(costs)

  52   84   25 

Interest income [a]

  52   23   4 

Environmental remediation and restoration

  (37)  (47)  (17)

Gain from sale of investment

  -   -   36 

Other [a]

  10   (15)  (14)

Total

 $491  $426  $297