Share Repurchase Authorizations - Schedule of Repurchase Agreements (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Class A common stock
Class of Stock [Line Items]
Shares repurchased (in shares)	1,784	981	4,244	1,100
Weighted-average price per share (in dollars per share)	$ 65.04	$ 41.92	$ 70.09	$ 42.26
Total purchase price	$ 116	$ 41	$ 297	$ 46
Class C capital stock
Class of Stock [Line Items]
Shares repurchased (in shares)	522	5,904	1,401	5,996
Weighted-average price per share (in dollars per share)	$ 65.03	$ 42.41	$ 73.19	$ 42.45
Total purchase price	$ 34	$ 251	$ 103	$ 255

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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ZILLOW GROUP, INC. 10-Q