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Financial Instruments by Category - Summary of Company's Financial Assets Measured at Fair Value (Detail) - ARS ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | $ 44,468 | $ 15,408 | $ 18,733
Investment in financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | 9,882 | 8,370 | 10,941
Cash and cash equivalents [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | 34,586 | 7,038 | 7,792
Public securities [member] | Investment in financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | 9,882 | 8,370 | 10,941
Mutual funds [member] | Cash and cash equivalents [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | 34,586 | 7,038 | 7,792
Level 1 [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | 44,468 | 15,408 | 18,733
Level 1 [member] | Investment in financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | 9,882 | 8,370 | 10,941
Level 1 [member] | Cash and cash equivalents [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | 34,586 | 7,038 | 7,792
Level 1 [member] | Public securities [member] | Investment in financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | 9,882 | 8,370 | 10,941
Level 1 [member] | Mutual funds [member] | Cash and cash equivalents [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial Assets | $ 34,586 | $ 7,038 | $ 7,792

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- Definition The amount of financial assets that are measured at fair value and for which gains (losses) are recognised in profit or loss. A financial asset shall be measured at fair value through profit or loss unless it is measured at amortised cost or at fair value through other comprehensive income. A gain (loss) on a financial asset measured at fair value shall be recognised in profit or loss unless it is part of a hedging relationship, it is an investment in an equity instrument for which the entity has elected to present gains and losses in other comprehensive income or it is a financial asset measured at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 8 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_8_a&doctype=Standard -URIDate 2020-01-01 + Details
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