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BUSINESS COMBINATIONS, GOODWILL, AND INTANGIBLE ASSETS - Summary of Purchase Price Allocation for Acquisition (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 13, 2021 | Nov. 03, 2021
--- | --- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |  |
Goodwill | $ 163 | $ 153 | $ 148 |  |
Redelcom S.A. |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash and cash equivalents |  |  |  | $ 1 |
Convertible notes agreements |  |  |  | 1 |
Other net tangible liabilities |  |  |  | (2) |
Total net tangible assets acquired |  |  |  | 0 |
Goodwill |  |  |  | 23 |
Purchase Price |  |  |  | 24 |
Redelcom S.A. | Platform |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets |  |  |  | $ 1 |
Kangu Participações S.A |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash and cash equivalents |  |  |  |  | $ 3
Other net tangible liabilities |  |  |  |  | 1
Total net tangible assets acquired |  |  |  |  | 4
Goodwill |  |  |  |  | 45
Purchase Price |  |  |  |  | 53
Kangu Participações S.A | Customer lists and non-compete agreements |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets |  |  |  |  | 1
Kangu Participações S.A | Hubs network |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets |  |  |  |  | $ 3

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