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Cash and Cash Equivalents (Tables)
12 Months Ended
Dec. 31, 2022
Cash and Cash Equivalents  
Schedule of cash and cash equivalents

    

December 31

    

December 31

  

($ millions)

 

2022

 

2021

Cash

 

1 782

 

1 971

Cash equivalents

 

198

 

234

 

1 980

 

2 205