Debt and Financial Instruments [Line Items]

No definition available.

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- Definition

Debt instrument unused borrowing capacity fee percentage.

+ References

No definition available.

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- Definition

Term loan maximum borrowing capacity.

+ References

No definition available.

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- Definition

Working Capital Facility

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

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

+ References

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-Topic 210
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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	credit
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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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Balance Type:	debit
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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

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Borrowings - Schedule of Borrowings (Parenthetical) (Detail) $ in Millions, $ in Millions	1 Months Ended	6 Months Ended
	Nov. 30, 2019 AUD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 AUD ($)	Dec. 31, 2019 AUD ($)
Foxtel [Member] \| Credit Facility Fiscal 2019 (Member)
Debt and Financial Instruments [Line Items]
Line of credit maximum borrowing capacity	$ 610
Foxtel [Member] \| Share Holders Loan [Member]
Debt and Financial Instruments [Line Items]
Proceeds from shareholder loans	200
Foxtel [Member] \| Term Loan Facility 2019 [Member]
Debt and Financial Instruments [Line Items]
Term loan maximum borrowing capacity	$ 250
Debt Instrument, Maturity Date	Nov. 30, 2024
Debt instrument fixed interest rate	6.25%
Foxtel [Member] \| Australian BBSY [Member] \| Credit Facility Fiscal 2019 (Member)
Debt and Financial Instruments [Line Items]
Interest rate margin		3.00%	3.00%
Foxtel [Member] \| Minimum [Member] \| Australian BBSY [Member] \| Credit Facility Fiscal 2019 (Member)
Debt and Financial Instruments [Line Items]
Interest rate margin		2.00%	2.00%
Foxtel [Member] \| Maximum [Member] \| Australian BBSY [Member] \| Credit Facility Fiscal 2019 (Member)
Debt and Financial Instruments [Line Items]
Interest rate margin		3.75%	3.75%
REA Group [Member] \| Maximum [Member] \| Australian BBSY [Member]
Debt and Financial Instruments [Line Items]
Interest rate margin		1.40%	1.40%
US Private Placement 2012 USD Portion Tranche 1 [Member] \| Foxtel [Member]
Debt and Financial Instruments [Line Items]
Repayments of lines of credit		$ 150
US Private Placement 2009 Tranche 3 [Member] \| Foxtel [Member]
Debt and Financial Instruments [Line Items]
Repayments of lines of credit		$ 75
Facility Due December 2019 [Member] \| REA Group [Member]
Debt and Financial Instruments [Line Items]
Repayment of revolving credit facility			$ 240
Line of credit maximum borrowing capacity				$ 480
Credit Facility Fiscal 2018 (Member) \| REA Group [Member] \| Australian BBSY [Member]
Debt and Financial Instruments [Line Items]
Interest rate margin		0.85%	0.85%
Credit Facility Fiscal 2018 (Member) \| REA Group [Member] \| Minimum [Member] \| Australian BBSY [Member]
Debt and Financial Instruments [Line Items]
Interest rate margin		0.85%	0.85%
Credit Facility Fiscal 2019 (Member) \| Foxtel [Member]
Debt and Financial Instruments [Line Items]
Line of credit facility maturity date	Nov. 30, 2022
Credit Facility Fiscal 2019 (Member) \| REA Group [Member] \| Unsecured Revolving Credit Facility [Member]
Debt and Financial Instruments [Line Items]
Line of credit maximum borrowing capacity				$ 170
Credit Facility Fiscal 2019 (Member) \| REA Group [Member] \| Australian BBSY [Member]
Debt and Financial Instruments [Line Items]
Interest rate margin		0.85%	0.85%
Credit Facility Fiscal 2019 (Member) \| REA Group [Member] \| Minimum [Member] \| Australian BBSY [Member]
Debt and Financial Instruments [Line Items]
Interest rate margin		0.85%	0.85%
Working Capital Facility 2017 [Member] \| Foxtel [Member]
Debt and Financial Instruments [Line Items]
Debt instrument unused borrowing capacity percentage fee		45.00%	45.00%
Working Capital Facility 2017 [Member] \| REA Group [Member] \| Foxtel [Member] \| Unsecured Revolving Credit Facility [Member]
Debt and Financial Instruments [Line Items]
Debt instrument unused borrowing capacity		$ 11
working capital facility 2017 Amended [Member] \| Foxtel [Member]
Debt and Financial Instruments [Line Items]
Line of credit maximum borrowing capacity	$ 100
Working capital facility	$ 40
Debt instrument term	3 years