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Inventories | 12 Months Ended
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Dec. 31, 2019
Inventories [Abstract] |
Inventories | Inventories The amount of inventory recognized as an expense in "Cost of net sales" in the consolidated income statements during 2019 amounted to $2.2 billion (2018: $2.2 billion, 2017: $2.1 billion). The amount of inventory recognized as an expense in "Cost of other revenues" in the consolidated income statements during 2019 amounted to $127 million (2018: $0 million, 2017: $0 million).
($ millions) |  | 2019 |  |  | 2018 |
Raw material, consumables |  | 286 |  |  | 334 |
Work in progress |  | 101 |  |  | 127 |
Finished products |  | 1,118 |  |  | 979 |
Total inventories |  | 1,505 |  |  | 1,440 |
Alcon recognized inventory provisions amounting to $140 million in 2019 (2018: $148 million, 2017: $73 million) and reversed inventory provisions amounting to $65 million (2018: $56 million, 2017: $15 million). Inventory provisions mainly relate to the adjustment of inventory balances to their net realizable value based on the forecasted sales. Reversals are made when the products become saleable.

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