Borrowings - Schedule of Borrowings (Detail) $ in Millions, $ in Millions	Sep. 30, 2023 USD ($)	Sep. 30, 2023 AUD ($)	Jun. 30, 2023 USD ($)
Debt and Financial Instruments [Line Items]
Total borrowings	$ 2,970		$ 2,967
Finance lease liability	34		42
Less: current portion	(61)		(27)
Long-term borrowings	2,909		2,940
Finance lease liabilities, current	$ 26		27
2024 Foxtel credit facility — tranche 1 | Foxtel
Debt and Financial Instruments [Line Items]
Interest rate	7.04%	7.04%
Total borrowings	$ 335		0
2024 Foxtel credit facility — USD portion — tranche 2 | Foxtel
Debt and Financial Instruments [Line Items]
Interest rate	8.64%	8.64%
Total borrowings	$ 49		0
2024 Foxtel credit facility — tranche 3 | Foxtel
Debt and Financial Instruments [Line Items]
Interest rate	7.19%	7.19%
Total borrowings	$ 200		0
2017 Working capital facility | Foxtel | Unsecured Revolving Credit Facility
Debt and Financial Instruments [Line Items]
Debt instrument unused borrowing capacity		$ 304
2017 Working capital facility | New Foxtel
Debt and Financial Instruments [Line Items]
Interest rate	7.04%	7.04%
Total borrowings	$ 16		0
Telstra facility | Foxtel
Debt and Financial Instruments [Line Items]
Interest rate	12.10%	12.10%
Total borrowings	$ 99		100
2019 Credit facility | Foxtel
Debt and Financial Instruments [Line Items]
Interest rate	0.00%	0.00%
Total borrowings	$ 0		320
2019 Term loan facility | Foxtel
Debt and Financial Instruments [Line Items]
Interest rate	0.00%	0.00%
Total borrowings	$ 0		167
2012 US private placement — USD portion — tranche 3 | New Foxtel
Debt and Financial Instruments [Line Items]
Interest rate	0.00%	0.00%
Total borrowings	$ 0		149
2024 REA credit facility — tranche 1 | REA Group
Debt and Financial Instruments [Line Items]
Interest rate	5.65%	5.65%
Total borrowings	$ 76		0
2024 REA credit facility — tranche 2 | REA Group
Debt and Financial Instruments [Line Items]
Interest rate	5.35%	5.35%
Total borrowings	$ 129		0
2024 Subsidiary facility | REA Group
Debt and Financial Instruments [Line Items]
Interest rate	5.57%	5.57%
Total borrowings	$ 53		0
Debt instrument unused borrowing capacity		$ 282
2022 Credit facility — tranche 1 | REA Group
Debt and Financial Instruments [Line Items]
Interest rate	0.00%	0.00%
Total borrowings	$ 0		211
2022 Credit facility — tranche 2 | REA Group
Debt and Financial Instruments [Line Items]
Interest rate	0.00%	0.00%
Total borrowings	$ 0		0
News Corporation Borrowings | 2022 Term loan A
Debt and Financial Instruments [Line Items]
Interest rate	6.99%	6.99%
Total borrowings	$ 497		497
Fixed interest rate of derivative	2.083%	2.083%
Effective interest rate	3.583%	3.583%
News Corporation Borrowings | 2022 Senior notes
Debt and Financial Instruments [Line Items]
Interest rate	5.125%	5.125%
Total borrowings	$ 492		492
News Corporation Borrowings | 2021 Senior notes
Debt and Financial Instruments [Line Items]
Interest rate	3.875%	3.875%
Total borrowings	$ 990		$ 989
News Corporation Borrowings | 2024 Foxtel credit facility — tranche 1
Debt and Financial Instruments [Line Items]
Fixed interest rate of derivative	4.30%	4.30%
Effective interest rate	7.10%	7.10%
News Corporation Borrowings | 2024 Foxtel credit facility — USD portion — tranche 2
Debt and Financial Instruments [Line Items]
Fixed interest rate of derivative	4.38%	4.38%
Effective interest rate	7.64%	7.64%
News Corporation Borrowings | 2024 Foxtel credit facility — tranche 3
Debt and Financial Instruments [Line Items]
Fixed interest rate of derivative	4.30%	4.30%
Effective interest rate	7.30%	7.30%