Deferred Revenue (Tables)

12 Months Ended

Dec. 31, 2022

Contract with Customer, Liability [Abstract]

Schedule of Deferred Revenue

The changes in our deferred revenue during 2022 and 2021 are as follows (in millions):

	Annual Listing Revenue		Original Listing Revenues		Other Listing Revenues		Data Services and Other Revenues		Mortgage Technology		Total
Deferred revenue balance at January 1, 2021	$	—	$	13	$	92	$	95	$	59	$	259
Additions	403		39		44		451		83		1,020
Amortization	(403)		(33)		(43)		(453)		(63)		(995)
Deferred revenue balance at December 31, 2021	—		19		93		93		79		284
Additions	437		34		47		451		72		1,041
Amortization	(437)		(34)		(44)		(456)		(100)		(1,071)
Deferred revenue balance at December 31, 2022	$	—	$	19	$	96	$	88	$	51	$	254

As of December 31, 2022, we estimate that our deferred revenue will be recognized in the following years (in millions):

	Original Listing Revenues		Other Listing Revenues		Data Services and Other Revenues		Mortgage Technology		Total
2023	$	13	$	33	$	78	$	46	$	170
2024	3		25		4		5		37
2025	2		18		2		—		22
2026	1		12		2		—		15
2027	—		7		1		—		8
Thereafter	—		1		1		—		2
Total	$	19	$	96	$	88	$	51	$	254