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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Classes of current inventories [abstract]  
Summary of Inventories
 20202019
Finished productsPs. 3,694Ps. 3,996
Raw materials3,2243,657
Non strategic spare parts9341,006
Inventories in transit1,2841,340
Packing materials271240
Other320299
 Ps. 9,727Ps. 10,538
Summary of Changes in Inventories
For the years ended as of December 31, 2020, 2019 and 2018, changes in inventories are comprised of the following and included in the consolidated income statement under the cost of goods sold caption:
 202020192018
Changes in inventories of finished goods and work in progressPs. 23,901Ps. 24,676Ps. 21,457
Raw materials and consumables used76,00279,52075,078
TotalPs. 99,903Ps. 104,196Ps. 96,535