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Business Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | $ 5,215 | $ 4,873 | $ 15,205 | $ 14,176
Operating income (loss) |  | 1,602 | 1,503 | 4,211 | 3,568
Corporate and Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 334 | 312 | 997 | 945
Operating income (loss) |  | (472) | (362) | (1,615) | (1,605)
Merchant Segment | Operating segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 2,469 | 2,259 | 7,132 | 6,461
Operating income (loss) |  | 931 | 786 | 2,582 | 2,123
Financial Segment | Operating segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 2,412 | 2,302 | 7,076 | 6,770
Operating income (loss) |  | 1,143 | 1,079 | 3,244 | 3,050
Processing and services revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | [1] | 4,237 | 4,008 | 12,377 | 11,605
Processing and services revenue | Corporate and Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 3 | 5 | 13 | 18
Processing and services revenue | Merchant Segment | Operating segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 2,198 | 1,971 | 6,340 | 5,638
Processing and services revenue | Financial Segment | Operating segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 2,036 | 2,032 | 6,024 | 5,949
Product revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 978 | 865 | 2,828 | 2,571
Product revenue | Corporate and Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 331 | 307 | 984 | 927
Product revenue | Merchant Segment | Operating segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 271 | 288 | 792 | 823
Product revenue | Financial Segment | Operating segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | $ 376 | $ 270 | $ 1,052 | $ 821
[1] | Includes processing and other fees charged to related party investments accounted for under the equity method of $35 million and $45 million for the three months ended September 30, 2024 and 2023, respectively, and $111 million and $136 million for the nine months ended September 30, 2024 and 2023, respectively (see Note 19).

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