Deferred Revenue (Tables)

6 Months Ended

Jun. 30, 2023

The changes in our deferred revenue during the six months ended June 30, 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	474		236		32		742
Amortization	(252)		(175)		(40)		(467)
Deferred revenue balance at June 30, 2023	$	337	$	149	$	43	$	529

The changes in our deferred revenue during the six months ended June 30, 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	500		283		46		829
Amortization	(261)		(222)		(55)		(538)
Deferred revenue balance at June 30, 2022	$	351	$	154	$	70	$	575