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Acquisitions and Divestitures - Narrative (Details) shares in Millions				1 Months Ended	3 Months Ended	6 Months Ended
	Dec. 31, 2023 USD ($)	Sep. 14, 2023 USD ($)	Sep. 05, 2023 USD ($) trading_day shares	Feb. 29, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)
Business Acquisition [Line Items]
Proceeds from sale of Promissory Note						$ 75,000,000	$ 0
Black Knight, Inc. | Term Loan
Business Acquisition [Line Items]
Debt instrument, face amount		$ 500,000,000
Debt instrument, term		40 years
Interest rate, stated percentage		7.00%
Long-term debt	$ 75,000,000	$ 235,000,000
Fair value, option, changes in fair value, gain (loss)	$ 160,000,000
Proceeds from sale of Promissory Note				$ 75,000,000
Optimal Blue | Black Knight, Inc.
Business Acquisition [Line Items]
Disposal group, including discontinued operation, consideration		$ 241,000,000
Black Knight, Inc.
Business Acquisition [Line Items]
Percentage of voting interests acquired			100.00%
Preliminary purchase price			$ 11,838,000,000
Cash			$ 10,542,000,000
Equity interests issued and issuable (in shares) | shares			10.9
Business combination, common stock, consecutive trading days | trading_day			10
Business combination, common stock, trading days prior to closing | trading_day			3
Total purchase price			$ 11,362,000,000
Expected tax deductible amount			$ 186,000,000
Revenue of acquiree since acquisition date					$ 266,000,000	536,000,000
Business combination, pro forma information, operating expenses of acquire since acquisition date, actual					$ 275,000,000	$ 563,000,000

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