Deferred Revenue (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Deferred Revenue

The changes in our deferred revenue during 2023 and 2022 are as follows (in millions):

	Listing Revenues		Data Services and Other Revenues		Mortgage Technology		Total
Deferred revenue balance at January 1, 2022	$	112	$	93	$	79	$	284
Additions	518		451		72		1,041
Amortization	(515)		(456)		(100)		(1,071)
Deferred revenue balance at December 31, 2022	115		88		51		254

Additions (1)	490		401		177		1,068
Amortization	(497)		(396)		(122)		(1,015)
Deferred revenue balance at December 31, 2023	$	108	$	93	$	106	$	307

(1) 2023 additions in our Mortgage Technology segment in the table above include $68 million of deferred revenue acquired on the date of the Black Knight acquisition (Note 3) and $37 million of Black Knight related deferred revenue added in the period after the date of acquisition through December 31, 2023.

As of December 31, 2023, we estimate that our deferred revenue will be recognized in the following years (in millions):

	Listing Revenues		Data Services and Other Revenues		Mortgage Technology		Total
2024	$	36	$	82	$	82	$	200
2025	30		6		18		54
2026	23		3		3		29
2027	13		1		1		15
2028	5		1		1		7
Thereafter	1		—		1		2
Total	$	108	$	93	$	106	$	307