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Business Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Revenues: |  |  |  |  |
Revenue |  | $ 5,263 | $ 5,215 | $ 15,909 | $ 15,205
Expenses: |  |  |  |  |
Reportable segment operating income |  | 1,436 | 1,602 | 4,527 | 4,211
Interest expense, net |  | (422) | (326) | (1,118) | (872)
Other expense, net |  | (50) | (5) | (107) | (17)
Income before income taxes and income (loss) from investments in unconsolidated affiliates |  | 964 | 1,271 | 3,302 | 3,322
Depreciation and amortization |  | 800 | 789 | 2,392 | 2,370
Capitalized expenditures, including capitalized software and other intangibles |  | 507 | 402 | 1,321 | 1,170
Change in estimated redemption value of redeemable noncontrolling interest (see Note 11) |  | 89 |  |  | 66
Operating segments |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 4,919 | 4,881 | 14,904 | 14,208
Expenses: |  |  |  |  |
Reportable segment operating income |  | 1,953 | 2,074 | 6,069 | 5,826
Corporate and Other |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 344 | 334 |  |
Expenses: |  |  |  |  |
Reportable segment operating income |  | (517) | (472) |  |
Depreciation and amortization |  | 503 | 515 | 1,521 | 1,580
Capitalized expenditures, including capitalized software and other intangibles |  | 159 | 102 | 416 | 310
Corporate and Other |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 344 | 334 | 1,005 | 997
Expenses: |  |  |  |  |
Reportable segment operating income |  |  |  | (1,542) | (1,615)
Merchant Segment | Operating segments |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 2,586 | 2,469 | 7,602 | 7,132
Expenses: |  |  |  |  |
Personnel expenses |  | 352 | 325 | 1,031 | 1,013
Direct costs |  | 886 | 792 | 2,606 | 2,325
Depreciation and amortization expense |  | 111 | 92 | 320 | 272
Other operating expense |  | 120 | 172 | 470 | 469
Reportable segment operating income |  | 962 | 931 | 2,686 | 2,582
Depreciation and amortization |  | 128 | 114 | 367 | 320
Capitalized expenditures, including capitalized software and other intangibles |  | 167 | 147 | 412 | 404
Change in estimated redemption value of redeemable noncontrolling interest (see Note 11) |  | 89 |  | 89 |
Merchant Segment | Corporate and Other |  |  |  |  |
Expenses: |  |  |  |  |
Other operating expense |  | 155 | 157 | 489 | 471
Financial Segment | Operating segments |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 2,333 | 2,412 | 7,302 | 7,076
Expenses: |  |  |  |  |
Personnel expenses |  | 498 | 496 | 1,500 | 1,466
Direct costs |  | 200 | 191 | 608 | 556
Depreciation and amortization expense |  | 128 | 118 | 377 | 348
Other operating expense |  | 162 | 96 | 338 | 306
Reportable segment operating income |  | 991 | 1,143 | 3,383 | 3,244
Depreciation and amortization |  | 169 | 160 | 504 | 470
Capitalized expenditures, including capitalized software and other intangibles |  | 181 | 153 | 493 | 456
Financial Segment | Corporate and Other |  |  |  |  |
Expenses: |  |  |  |  |
Other operating expense |  | 354 | 368 | 1,096 | 1,156
Processing and services revenue |  |  |  |  |
Revenues: |  |  |  |  |
Revenue | [1] | 4,273 | 4,237 | 12,622 | 12,377
Processing and services revenue | Merchant Segment | Operating segments |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 2,274 | 2,198 | 6,612 | 6,340
Processing and services revenue | Financial Segment | Operating segments |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 1,999 | 2,036 | 6,010 | 6,024
Product revenue |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 990 | 978 | 3,287 | 2,828
Product revenue | Merchant Segment | Operating segments |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | 312 | 271 | 990 | 792
Product revenue | Financial Segment | Operating segments |  |  |  |  |
Revenues: |  |  |  |  |
Revenue |  | $ 334 | $ 376 | $ 1,292 | $ 1,052
[1] | Includes processing and other fees charged to related party investments accounted for under the equity method of $21 million and $35 million for the three months ended September 30, 2025 and 2024, respectively, and $77 million and $111 million for the nine months ended September 30, 2025 and 2024, respectively (see Note 19).

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