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Capital Stock - Treasury Stock (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 31, 2022	Sep. 30, 2022	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2019	Dec. 31, 2018
Equity, Class of Treasury Stock [Line Items]
Treasury stock (in shares)		133,917,000	133,917,000	131,813,000
Common stock repurchases (in shares)		1,500,000	1,500,000
Common stock repurchases		$ 153	$ 153
Average repurchase price per share (in dollars per share)		$ 100.07	$ 100.07
Number of shares authorized and remaining under the repurchase program (in shares)		21,800,000	21,800,000
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Common stock repurchases (in shares)	500,000
Common stock repurchases	$ 47
Average repurchase price per share (in dollars per share)	$ 95.65
Mr. Diller, Chairman
Equity, Class of Treasury Stock [Line Items]
Authorized share repurchase (up to) (in shares)				23,300,000	20,000,000	15,000,000
Common stock
Equity, Class of Treasury Stock [Line Items]
Treasury stock (in shares)		126,600,000	126,600,000	124,500,000
Class B Common Stock
Equity, Class of Treasury Stock [Line Items]
Treasury stock (in shares)		7,300,000	7,300,000	7,300,000

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