Fintech Regulations	12 Months Ended
Fintech Regulations	Dec. 31, 2022
Cash and Cash Equivalents [Abstract]
Fintech Regulations	Fintech Regulations Regulations issued by CBA In January 2020, the CBA enacted regulations related to payment service providers that applies to fintech companies that are not financial institutions, but nevertheless provide payment services in at least one of the processes of the payments system and offer a payment account to its customers. On July 7, 2020, the CBA approved the registration of the Argentine subsidiary in the registry for payment service providers who offer payment accounts (“PSPOCP” according to its Spanish acronym). These regulations set forth certain rules that require PSPOCP to, among other things, (i) deposit and maintain users’ funds in specific local bank accounts, payable on demand; (ii) implement a monthly reporting regime with the CBA; (iii) segregate information related to users’ investments funds; (iv) segregate the Company’s funds from users’ funds; and (v) to comply with transparency provisions regarding PSPOCP’s advertising material and documents. As of December 31, 2022 and 2021, in accordance with the regulation, the Company held customer’s funds for the amount of $496 million and $449 million, respectively, representing the total amount of funds in payment accounts of customers, payable to them on demand. On December 30, 2021, the board of the CBA issued a regulation by which financial institutions must set up a reserve of 100% of the customer funds deposited by payment service providers that offer payment accounts. According to this new regulation, from January 1, 2022, 100% of the customer funds that have not been invested by users in Mercado Fondo, have remained deposited at financial institutions, and such financial institutions deposited 100% of those funds at the CBA, and available for users. On January 13, 2022, the Company challenged such regulation, and sought an injunction to suspend the effects pending resolution of the challenge. On March 22, 2022, the CBA rejected the Company’s challenge. On April 22, 2022, the Company sought a new preliminary injunction with the courts, in order to suspend the effects of the regulation until a final decision on the merits is granted on the case to be initiated within 90 days following that request, which was rejected by the court. The Company appealed such decision and also filed a motion to vacate the regulation issued by CBA. On September 22, 2022, the CBA modified the aforementioned resolution and established that a percentage of the customer funds deposited in financial institutions by payment service providers that offer payment accounts may be invested in Argentine treasury bonds and do not necessarily have to remain deposited at the CBA. Under the amended regulation, financial institutions in which the Company deposits customer funds may invest up to 45% of funds that have not already been invested by users in Mercado Fondo in Argentine, peso-denominated treasury bonds due May 23, 2027. As a result of the amended regulation, the Company withdrew on September 5, 2022 the cases it had originally filed challenging the December 30, 2021 regulation. Regulations issued by Central Bank of Brazil On November 1, 2018, the Company obtained approval from the Central Bank of Brazil to operate as an authorized payment institution. With this authorization, Mercado Pago in Brazil is subject to the supervision of the Central Bank of Brazil and must fully comply with all obligations established by current regulations. Among other obligations, the regulations require authorized payment institutions to hold any electronic balance in a payment institution account in either a specific account of the Central Bank of Brazil that does not pay interest or Brazilian federal government bonds registered with the “Sistema Especial de Liquidacao e Custodia.” 100% of electronic funds were required to be deposited as of December 31, 2022 and 2021 . As of December 31, 2022 and 2021, in accordance with the regulation, the Company held $1,377 million and $898 million, respectively, deposited in Brazilian federal government bonds as a mandatory guarantee (the “Central Bank of Brazil mandatory guarantee”). During March 2022, the Central Bank of Brazil announced new prudential rules for payment institutions based on their size and complexity and raising standards for required capital. The new framework, which will be effective starting in July 2023 with full implementation by January 2025, will extend the application of the rule regarding proportionality of regulatory requirements (currently applicable to conglomerates of financial institutions) to financial conglomerates led by payment institutions. The Company is assessing the effects that the new rules may have on its regulated Brazilian subsidiaries. Chilean subsidiaries regulated by Commission for the Financial Market On November 5, 2021, by means of exempt resolution No. 6312, the Chilean Commission for the Financial Market (Comisión para el Mercado Financiero – “CMF”) authorized Mercado Pago Emisora S.A. to carry out the exclusive business of non-bank issuer of payment cards with provision of funds. Mercado Pago Emisora S.A. became an institution regulated by the CMF, being obligated, among other things, to: (i) deliver information on its financial and operational management on a regular basis; (ii) maintain certain minimum capital required; (iii) set up a determined liquidity reserve; and (iv) deposit and maintain users’ funds in specific banks’ accounts. On November 9, 2021, by means of exempt resolution No. 6358, the CMF authorized MercadoPago S.A. to carry out the exclusive business of payment card operator. With this authorization, Mercado Pago S.A. became an institution regulated by the CMF, being obliged, among other things, to: (i) provide information on its financial and operational management on a regular basis: (ii) maintain certain minimum capital required; and (iii) constitute a determined liquidity reserve. On October 12, 2022, the Chilean Congress approved the Fintech and Open-Banking Law Project, which was published on January 4, 2023, and and came into effect on February 3, 2023. This law established a regulatory framework for certain technological financial services that did not have their own legal framework. These services are: (i) Alternative Transaction Systems, (ii) Crowdfunding Financing Platform, (iii) Financial Instrument Intermediation, (iv) Order Routing, (v) Credit Advisory and (vi) Investment Advisory. In addition, an Open Finance System is created to allow financial service providers to exchange customer financial information. After the Fintech Law comes into effect, the CMF will have 18 months to issue secondary regulation. Mercado Pago Emisora S.A. will actively participate in the discussions and workshops at the CMF with the other players in the industry. As of December 31, 2022 and 2021, in accordance with the regulations, the Chilean subsidiaries held $53 million and $21 million, respectively, as restricted cash and cash equivalents related to liquidity reserves. Mexican subsidiary regulated by National Banking and Securities Commission On April 29, 2022, MercadoLibre, S.A. de C.V., Institución de Fondos de Pago Electrónico, a Mexican subsidiary obtained the final approval by the National Banking and Securities Commission (Comisión Nacional Bancaria y de Valores, or the "CNBV") to operate as an Electronic Payment Institution (Institución de Fondos de Pago Electrónico or “IFPE”, as referred to by the Financial Technology Institutions Act) which enables that entity to issue, manage, redeem and make electronic transfers of money on behalf of its clients, through computer applications, interfaces, web sites or any other means of electronic or digital communication. MercadoLibre, S.A. de C.V., Institución de Fondos de Pago Electrónico became a regulated financial entity, effective on May 11, 2022, and is subject to the supervision and jurisdiction of the relevant Mexican financial regulators, including but not limited to the CNBV and the Central Bank of Mexico. Amongst the regulatory obligations to which Electronic Payment Institutions are subject, the following are noteworthy: a) maintain minimum capital requirements, b) maintain sufficient reserves in high-quality liquid assets (e.g. cash, treasury bills, etc.), so as to be able to redeem, on par, the funds held on behalf of the clients, c) comply with anti-money laundering and countering of terrorism financing, d) develop and maintain sound cybersecurity and information security policies, including but not limited to the performance of recurrent vulnerability tests and the deployment of strict infrastructure controls. As of December 31, 2022, in accordance with the regulations, the Mexican subsidiary held $248 million as restricted cash and cash equivalents related to liquidity reserves. Colombia The Company has started the process of incorporating a new company (“MercadoPago S.A. Compañía de Financiamiento”) and requesting a license to act as a financial institution, and will therefore be able to offer credits, digital accounts, investments and prepaid cards without any limitation upon obtaining such license. The new entity has a minimum capital requirement, which has been paid-in and is effectively restricted cash until the Financial Superintendence of Colombia (Superintendencia Financiera de Colombia) authorizes the operation of the company. We expect this new company to be operational by the second half of 2023. As of December 31, 2022, in accordance with the regulations, the Colombian subsidiary held $6 million as restricted cash and cash equivalents related to the minimum capital requirements.