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Other Assets
 12 Months Ended
Dec. 31, 2023
Other Assets, Noncurrent Disclosure [Abstract]  
Other Assets Other Assets
 
Other Assets consisted of the following (in millions):
 December 31,
2023		December 31,
2022
Investment in Unconsolidated Subsidiaries$1,020 $976 
Pension Asset944 752 
Payments to Joint Facility Partners and Service Providers690 2,653 
Other515 489 
      Total$3,169 $4,870 

Certain payments to joint facility partners and service providers are amortized over the life of the related asset or agreement. As a result of the approved lease termination between BNSF Railway and MRL during the second quarter of 2023, the Other Assets balance associated with this transaction was reclassified in accordance with ASC 805. See Note 7 to the Consolidated Financial Statements for further information.