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Business Segments (Schedule of Operating Segments) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |
Total revenues | $ 6,226 | $ 5,886 | $ 5,625
Transaction-based expenses | (2,644) | (2,466) | (2,722)
Revenues less transaction-based expenses | 3,582 | 3,420 | 2,903
Depreciation and amortization | 258 | 278 | 202
Operating income (loss) | 1,564 | 1,441 | 1,234
Purchase of property and equipment | 152 | 163 | 188
Operating segments | Market Platforms |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 4,225 | 4,048 | 4,179
Transaction-based expenses | (2,644) | (2,466) | (2,722)
Revenues less transaction-based expenses | 1,581 | 1,582 | 1,457
Depreciation and amortization | 59 | 64 | 55
Operating income (loss) | 859 | 893 | 784
Purchase of property and equipment | 83 | 96 | 125
Operating segments | Capital Access Platforms |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 1,684 | 1,568 | 1,287
Revenues less transaction-based expenses | 1,684 | 1,568 | 1,287
Depreciation and amortization | 36 | 34 | 30
Operating income (loss) | 916 | 844 | 651
Purchase of property and equipment | 50 | 50 | 54
Operating segments | Anti-Financial Crime |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 306 | 231 | 116
Revenues less transaction-based expenses | 306 | 231 | 116
Depreciation and amortization | 10 | 8 | 6
Operating income (loss) | 80 | 44 | 35
Purchase of property and equipment | 19 | 17 | 9
Corporate Items |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 11 | 39 | 43
Revenues less transaction-based expenses | 11 | 39 | 43
Depreciation and amortization | 153 | 172 | 111
Operating income (loss) | $ (291) | $ (340) | $ (236)

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