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Trade receivables | 12 Months Ended
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Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract] |
Trade receivables | Trade receivables Trade receivable balances include sales to wholesalers, retailers, doctor groups, private health systems, government agencies, pharmacy benefit managers and government-supported healthcare systems. The following tables provide details related to Trade receivables as of December 31, 2020 and 2019, including trade receivables that are not overdue as specified in the payment terms and conditions established with Alcon's customers, as well as an analysis of overdue amounts, expected credit loss rates and related provisions for doubtful trade receivables:
| 2020
($ millions) | Gross trade receivables | Provision | Trade receivables, net | Expected credit loss rates
Not overdue | 1,137 |  | (2) |  | 1,135 |  | 0.2 | %
Past due for not more than one month | 109 |  | (1) |  | 108 |  | 0.9 | %
Past due for more than one month but less than three months | 67 |  | (2) |  | 65 |  | 3.0 | %
Past due for more than three months but less than six months | 36 |  | (2) |  | 34 |  | 5.6 | %
Past due for more than six months but less than one year | 31 |  | (18) |  | 13 |  | 58.1 | %
Past due for more than one year | 49 |  | (43) |  | 6 |  | 87.8 | %
Total | 1,429 |  | (68) |  | 1,361 |  |
| 2019
($ millions) | Gross trade receivables | Provision | Trade receivables, net | Expected credit loss rates
Not overdue | 1,135 |  | (1) |  | 1,134 |  | 0.1 | %
Past due for not more than one month | 118 |  | (1) |  | 117 |  | 0.8 | %
Past due for more than one month but less than three months | 81 |  | (1) |  | 80 |  | 1.2 | %
Past due for more than three months but less than six months | 47 |  | (2) |  | 45 |  | 4.3 | %
Past due for more than six months but less than one year | 21 |  | (12) |  | 9 |  | 57.1 | %
Past due for more than one year | 36 |  | (31) |  | 5 |  | 86.1 | %
Total | 1,438 |  | (48) |  | 1,390 |  |
The following table summarizes the movement in the provision for doubtful trade receivables:
($ millions) | 2020 |  | 2019 |  | 2018
January 1 | (48) |  |  | (54) |  |  | (77) |
Transfers with former parent | — |  |  | — |  |  | 4 |
Provisions for doubtful trade receivables charged to the consolidated income statement | (48) |  |  | (17) |  |  | (17) |
Utilization of provisions for doubtful trade receivables | 15 |  |  | 7 |  |  | 16 |
Reversal of provisions for doubtful trade receivables | 14 |  |  | 15 |  |  | 16 |
Currency translation effects | (1) |  |  | 1 |  |  | 4 |
December 31 | (68) |  |  | (48) |  |  | (54) |
The majority of the outstanding trade receivables from Greece, Italy, Portugal, Spain, Brazil, Russia, Turkey, Saudi Arabia, and Argentina (the closely monitored countries) are due directly from local governments or from government-funded entities except for Russia, Brazil, and Turkey. We evaluate trade receivables in these countries for potential collection risk. Should there be a substantial deterioration in our economic exposure with respect to those countries, we may increase our level of provisions by updating our expected loss provision or may change the terms of trade on which we operate. The following table shows the gross trade receivables balance from these closely monitored countries as of December 31, 2020 and 2019, the amounts that are past due for more than one year and the related amount of the provisions for doubtful trade receivables that have been recorded:
($ millions) | 2020 |  | 2019
Total balance of gross trade receivables from closely monitored countries | 211 |  |  | 209 |
Past due for more than one year | 14 |  |  | 10 |
Provisions for doubtful trade receivables | (15) |  |  | (13) |
Trade receivables include amounts denominated in the following major currencies:
($ millions) | 2020 |  | 2019
US dollar (USD) | 477 |  |  | 463 |
Euro (EUR) | 214 |  |  | 243 |
Japanese yen (JPY) | 168 |  |  | 168 |
Chinese yuan (CNY) | 121 |  |  | 102 |
Indian rupee (INR) | 30 |  |  | 33 |
Canadian dollar (CAD) | 32 |  |  | 30 |
Australian dollar (AUD) | 29 |  |  | 29 |
British pound (GBP) | 21 |  |  | 24 |
Russian ruble (RUB) | 28 |  |  | 34 |
South Korean won (KRW) | 31 |  |  | 29 |
Other currencies | 210 |  |  | 235 |
Total trade receivables, net | 1,361 |  |  | 1,390 |

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- Definition The disclosure of trade and other receivables. [Refer: Trade and other receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
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