Deferred Revenue (Tables)

9 Months Ended

Sep. 30, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Changes in Deferred Revenue

The changes in our deferred revenue during the nine months ended September 30, 2025 are as follows (in millions):

	Listings Revenues		Data Services and Other Revenues		Mortgage Technology		Total
Deferred revenue balance at January 1, 2025	$	119	$	130	$	84	$	333
Additions	483		282		105		870
Amortization	(370)		(267)		(119)		(756)
Deferred revenue balance at September 30, 2025	$	232	$	145	$	70	$	447

The changes in our deferred revenue during the nine months ended September 30, 2024 are as follows (in millions):

	Listings Revenues		Data Services and Other Revenues		Mortgage Technology		Total
Deferred revenue balance at January 1, 2024	$	108	$	93	$	106	$	307
Additions	487		335		106		928
Amortization	(366)		(270)		(124)		(760)
Deferred revenue balance at September 30, 2024	$	229	$	158	$	88	$	475