Deferred Revenue - Schedule of Deferred Revenue Estimate (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
2024	$ 200
2025	54
2026	29
2027	15
2028	7
Thereafter	2
Total	307	$ 254	$ 284
Listing Revenues
Disaggregation of Revenue [Line Items]
2024	36
2025	30
2026	23
2027	13
2028	5
Thereafter	1
Total	108	115	112
Data Services and Other Revenues
Disaggregation of Revenue [Line Items]
2024	82
2025	6
2026	3
2027	1
2028	1
Thereafter	0
Total	93	88	93
Mortgage Technology
Disaggregation of Revenue [Line Items]
2024	82
2025	18
2026	3
2027	1
2028	1
Thereafter	1
Total	$ 106	$ 51	$ 79