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Other Assets
 12 Months Ended
Dec. 31, 2021
Other Assets, Noncurrent Disclosure [Abstract]  
Other Assets Other Assets
 
Other Assets consisted of the following (in millions):
 December 31,
2021		December 31,
2020
Payments to Joint Facility Partners and Service Providers$2,664 $568 
Investment in Unconsolidated Subsidiaries910 858 
Pension Asset947 520 
Other706 724 
      Total$5,227 $2,670 

Certain payments to joint facility partners and service providers are amortized over the life of the related asset or agreement. The Company incurred $2.4 billion in 2021 and $73 million in 2020 pursuant to these agreements.