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Acquisitions and Divestitures - Business Acquisition Pro Forma Information (Details) - Black Knight, Inc. - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] |  |
Total revenues, less transaction-based expenses | $ 8,735 | $ 8,416
Net income attributable to ICE | $ 2,128 | $ 1,110

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