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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]  
Inventories
 
 
As of December 31
 
2021
2020
 
$ millions
$ millions
 
Finished products
 946
 807
Work in progress
 299
 263
Raw materials
 349
 207
Spare parts
 125
 125
Total inventories
 1,719
 1,402
Of which:
   

Non-current inventories - mainly raw materials (presented in non-current assets)

 149
 152
Current inventories
 1,570
 1,250