Deferred Revenue (Tables)

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Changes in Deferred Revenue

The changes in our deferred revenue during the three months ended March 31, 2023 are as follows (in millions):

	Listings Revenues		Data Services and Other Revenues		Mortgage Technology		Total
Deferred revenue balance at January 1, 2023	$	115	$	88	$	51	$	254
Additions	470		159		14		643
Amortization	(127)		(89)		(20)		(236)
Deferred revenue balance at March 31, 2023	$	458	$	158	$	45	$	661

The changes in our deferred revenue during the three months ended March 31, 2022 are as follows (in millions):

	Listings Revenues		Data Services and Other Revenues		Mortgage Technology		Total
Deferred revenue balance at January 1, 2022	$	112	$	93	$	79	$	284
Additions	472		186		26		684
Amortization	(129)		(112)		(32)		(273)
Deferred revenue balance at March 31, 2022	$	455	$	167	$	73	$	695