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v3.24.3

LOANS PAYABLE AND OTHER FINANCIAL LIABILITIES - Summary of Loans Payable and Other Financial Liabilities (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Debt Instrument [Line Items] |  |
Bank overdrafts | $ 1 | $ 33
Finance lease liabilities | 101 | 131
Collateralized debt | 1,845 | 1,475
Other lines of credit | 9 | 13
Loans payable and other financial liabilities | $ 5,353 | 4,495
Loans From Banks, 7.58% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 7.18% |
Loans from banks | $ 126 | 104
Loans From Banks, 5.90% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 5.90% |
Loans from banks | $ 53 | 216
Loans From Banks, 4.26% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 4.26% |
Loans from banks | $ 128 | 0
Loans From Banks, 8.74% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 8.78% |
Loans from banks | $ 48 | 50
Bank Overdrafts, 9.29% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 0.00% |
Bank overdrafts | $ 1 | 13
Bank Overdrafts, TIB +2.00% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 0.00% |
Bank overdrafts | $ 0 | 20
Secured Lines Of Credit, 38.29% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 42.21% |
Secured lines of credit | $ 56 | 29
Secured Lines Of Credit, 10.42% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 10.51% |
Secured lines of credit | $ 17 | 27
Financial Bills, CDI+0.65-1.40% |  |
Debt Instrument [Line Items] |  |
Financial Bills | 280 | 8
Deposit Certificates, CDI + 0.69 |  |
Debt Instrument [Line Items] |  |
Deposit Certificates | 227 | 0
Deposit Certificates, 100% to 150% of CDI |  |
Debt Instrument [Line Items] |  |
Deposit Certificates | 769 | 703
Deposit Certificates, 10.07% - 11.45% |  |
Debt Instrument [Line Items] |  |
Deposit Certificates | 34 | 77
Deposit Certificates, 104.00% of CDI |  |
Debt Instrument [Line Items] |  |
Deposit Certificates | 28 | 196
Commercial Notes, DI+0.88% |  |
Debt Instrument [Line Items] |  |
Commercial Notes | 67 | 78
Commercial Notes, IPCA+6.41% |  |
Debt Instrument [Line Items] |  |
Commercial Notes | $ 127 | 140
2026 Sustainability Notes |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 2.375% |
Senior Notes | $ 364 | 393
2031 Notes |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 3.125% |
Senior Notes | $ 579 | 635
Minimum | Deposit Certificates, 10.07% - 11.45% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 10.10% |
Maximum | Deposit Certificates, 10.07% - 11.45% |  |
Debt Instrument [Line Items] |  |
Debt weight average rate | 11.91% |
CDI | Loans From Banks, CDI + 0.81% |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.81% |
Loans from banks | $ 49 | 0
CDI | Minimum | Financial Bills, CDI+0.65-1.40% |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.45% |
CDI | Minimum | Deposit Certificates, CDI + 0.69 |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.32% |
CDI | Minimum | Deposit Certificates, 100% to 150% of CDI |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 98.00% |
CDI | Minimum | Deposit Certificates, 104.00% of CDI |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 101.50% |
CDI | Maximum | Financial Bills, CDI+0.65-1.40% |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.40% |
CDI | Maximum | Deposit Certificates, CDI + 0.69 |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.69% |
CDI | Maximum | Deposit Certificates, 100% to 150% of CDI |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 150.00% |
TJLP | Loans From Banks, TJLP + 0.80% |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.80% |
Loans from banks | $ 24 | 9
TIIE | Loans From Banks, TJLP+ 1.59% to 3.5% |  |
Debt Instrument [Line Items] |  |
Loans from banks | $ 421 | $ 178
TIIE | Minimum | Loans From Banks, TJLP+ 1.59% to 3.5% |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.59% |
TIIE | Maximum | Loans From Banks, TJLP+ 1.59% to 3.5% |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 3.50% |
DI | Commercial Notes, DI+0.88% |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.88% |
IPCA | Commercial Notes, IPCA+6.41% |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 6.41% |

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Name: | us-gaap_VariableRateAxis=meli_TIIEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=meli_LoansFromBanksVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=meli_DiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=meli_IpcaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |