Additional Financial Information - Components of Other, Net Included in Statement of Operations (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Other Income and Expenses [Line Items]
Remeasurement of equity securities	$ (9)	$ 33	$ 19	$ 42
Total Other, net	$ (7)	54	130	71
PropertyGuru Pte. Ltd. | REA Group
Other Income and Expenses [Line Items]
(Loss) gain on sale of businesses			$ 107
Ownership percentage	18.00%		18.00%
Nonoperating Income (Expense)
Other Income and Expenses [Line Items]
Remeasurement of equity securities	$ (9)	37	$ 19	46
Dividends received from equity security investments	9	1	10	3
(Loss) gain on sale of businesses	(9)	0	98	0
Gain on remeasurement of previously-held interest	3	7	3	7
Other	(1)	9	0	15
Total Other, net	$ (7)	$ 54	$ 130	$ 71