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SEGMENTS - Summary of Financial Performance of Company's Reporting Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | $ 6,790 | $ 5,073 | $ 12,725 | $ 9,406
Operating expenses and indirect costs of net revenues and financial expenses | (673) | (551) | (1,362) | (1,053)
Income from operations | 825 | 726 | 1,588 | 1,254
Other income (expenses): |  |  |  |
Interest income and other financial gains | 44 | 39 | 81 | 64
Interest expense and other financial losses | (36) | (39) | (75) | (77)
Foreign currency losses, net | (117) | (58) | (172) | (92)
Net income before income tax expense | 716 | 668 | 1,422 | 1,149
Service |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 5,964 | 4,592 | 11,284 | 8,547
Product |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 826 | 481 | 1,441 | 859
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 6,790 | 5,073 | 12,725 | 9,406
Local operating expenses | (5,104) | (3,654) | (9,428) | (6,813)
Depreciation and amortization | (188) | (142) | (347) | (286)
Total segment costs | (5,292) | (3,796) | (9,775) | (7,099)
Direct contribution | 1,498 | 1,277 | 2,950 | 2,307
Operating Segments | Service |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 5,964 | 4,592 | 11,284 | 8,547
Operating Segments | Product |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 826 | 481 | 1,441 | 859
Brazil | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 3,473 | 2,786 | 6,555 | 5,357
Local operating expenses | (2,834) | (2,039) | (5,291) | (3,976)
Depreciation and amortization | (98) | (71) | (181) | (144)
Total segment costs | (2,932) | (2,110) | (5,472) | (4,120)
Direct contribution | 541 | 676 | 1,083 | 1,237
Brazil | Operating Segments | Service |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 2,959 | 2,489 | 5,632 | 4,805
Brazil | Operating Segments | Product |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 514 | 297 | 923 | 552
Mexico | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 1,506 | 1,201 | 2,728 | 2,172
Local operating expenses | (1,178) | (964) | (2,138) | (1,667)
Depreciation and amortization | (60) | (43) | (105) | (87)
Total segment costs | (1,238) | (1,007) | (2,243) | (1,754)
Direct contribution | 268 | 194 | 485 | 418
Mexico | Operating Segments | Service |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 1,311 | 1,084 | 2,418 | 1,970
Mexico | Operating Segments | Product |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 195 | 117 | 310 | 202
Argentina | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 1,527 | 863 | 2,909 | 1,478
Local operating expenses | (847) | (464) | (1,561) | (838)
Depreciation and amortization | (19) | (18) | (39) | (35)
Total segment costs | (866) | (482) | (1,600) | (873)
Direct contribution | 661 | 381 | 1,309 | 605
Argentina | Operating Segments | Service |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 1,446 | 816 | 2,759 | 1,406
Argentina | Operating Segments | Product |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 81 | 47 | 150 | 72
Other Countries | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 284 | 223 | 533 | 399
Local operating expenses | (245) | (187) | (438) | (332)
Depreciation and amortization | (11) | (10) | (22) | (20)
Total segment costs | (256) | (197) | (460) | (352)
Direct contribution | 28 | 26 | 73 | 47
Other Countries | Operating Segments | Service |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | 248 | 203 | 475 | 366
Other Countries | Operating Segments | Product |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues and financial income | $ 36 | $ 20 | $ 58 | $ 33

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