Borrowings - Schedule of Borrowings (Detail) $ in Millions, $ in Millions	Dec. 31, 2021 USD ($)	Dec. 31, 2021 AUD ($)	Jun. 30, 2021 USD ($)
Debt and Financial Instruments [Line Items]
Total borrowings	$ 2,270		$ 2,313
Finance lease and other liabilities	82		100
Less: current portion	(302)		(28)
Long-term borrowings	1,968		2,285
Finance lease liabilities, current	26		28
Credit facility 2019 \| Foxtel
Debt and Financial Instruments [Line Items]
Total borrowings	$ 217		232
Interest rate	2.36%	2.36%
Term loan facility 2019 \| Foxtel
Debt and Financial Instruments [Line Items]
Total borrowings	$ 181		190
Interest rate	6.25%	6.25%
Working Capital Facility 2017 \| Foxtel
Debt and Financial Instruments [Line Items]
Debt instrument unused borrowing capacity		$ 340
Working Capital Facility 2017 \| New Foxtel
Debt and Financial Instruments [Line Items]
Total borrowings	$ 0		0
Interest rate	2.36%	2.36%
Telstra Facility \| Foxtel
Debt and Financial Instruments [Line Items]
Total borrowings	$ 79		60
Interest rate	7.83%	7.83%
US Private Placement 2012 - USD Portion -Tranche 2 \| New Foxtel
Debt and Financial Instruments [Line Items]
Total borrowings	$ 203		202
Interest rate	4.27%	4.27%
US Private Placement 2012 - USD Portion -Tranche 3 \| New Foxtel
Debt and Financial Instruments [Line Items]
Total borrowings	$ 152		152
Interest rate	4.42%	4.42%
US Private Placement 2012 - AUD Portion \| New Foxtel
Debt and Financial Instruments [Line Items]
Total borrowings	$ 73		78
Interest rate	7.04%	7.04%
Bridge Facility 2021 \| REA Group
Debt and Financial Instruments [Line Items]
Total borrowings	$ 0		314
Interest rate	0.00%	0.00%
2022 Credit Facility \| REA Group
Debt and Financial Instruments [Line Items]
Debt instrument unused borrowing capacity		$ 187
2022 Credit facility — tranche 1 \| REA Group
Debt and Financial Instruments [Line Items]
Total borrowings	$ 289		0
Interest rate	1.12%	1.12%
2022 Credit facility — tranche 2 \| REA Group
Debt and Financial Instruments [Line Items]
Total borrowings	$ 8		0
Interest rate	1.27%	1.27%
2021 Senior notes
Debt and Financial Instruments [Line Items]
Total borrowings	$ 986		$ 985
Interest rate	3.875%	3.875%

Debt and Financial Instruments [Line Items]

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Contractual interest rate for funds borrowed, under the debt agreement.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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