Borrowings - Additional Information (Detail) $ in Millions			1 Months Ended				6 Months Ended
		Jan. 01, 2020	Feb. 29, 2020 AUD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 AUD ($)	Nov. 30, 2019 AUD ($)	Dec. 31, 2019 AUD ($)	Dec. 31, 2019 AUD ($)
Foxtel [Member] | Share Holders Loan [Member]
Debt Instrument [Line Items]
Proceeds from shareholder loans						$ 200
Foxtel [Member] | Term Loan Facility Two Thousand And Nineteen [Member]
Debt Instrument [Line Items]
Operating income leverage ratio							3.75%
Interest coverage ratio							3.50%
Debt instrument fixed interest rate				6.25%				6.25%
Proceeds from long term line of credit							$ 250
Foxtel [Member] | Term Loan Facility Two Thousand And Nineteen [Member] | Fiscal Year Two Thousand And Twenty One [Member] | Scenario, Forecast [Member]
Debt Instrument [Line Items]
Operating income leverage ratio		3.50%
Foxtel [Member] | Term Loan Facility Two Thousand And Nineteen [Member] | Fiscal Year Two Thousand And Twenty Two [Member] | Scenario, Forecast [Member]
Debt Instrument [Line Items]
Operating income leverage ratio		3.25%
Foxtel [Member] | Credit Facility Fiscal Two Thousand And Nineteen [Member]
Debt Instrument [Line Items]
Operating income leverage ratio							3.75%
Interest coverage ratio							3.50%
Percentage of applicable margin payable as commitment fee							45.00%
Proceeds from term loan facilities							$ 610
Foxtel [Member] | Credit Facility Fiscal Two Thousand And Nineteen [Member] | Fiscal Year Two Thousand And Twenty One [Member] | Scenario, Forecast [Member]
Debt Instrument [Line Items]
Operating income leverage ratio		3.50%
Foxtel [Member] | Credit Facility Fiscal Two Thousand And Nineteen [Member] | Fiscal Year Two Thousand And Twenty Two [Member] | Scenario, Forecast [Member]
Debt Instrument [Line Items]
Operating income leverage ratio		3.25%
Foxtel [Member] | Telstra Subordinated Loan Facility Two Thousand And Twenty [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Unsecured revolving credit facility maximum capacity			$ 170
Share holder's loan intersest rate			7.75%
Share holder's loan maturity		Dec. 31, 2027
Percentage of shareholding			35.00%
Foxtel [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Repayment of revolving credit facility						1,100
Maximum [Member] | Foxtel [Member] | Credit Facility Fiscal Two Thousand And Nineteen [Member] | Australian BBSY [Member]
Debt Instrument [Line Items]
Interest rate margin							3.75%
Minimum [Member] | Foxtel [Member] | Credit Facility Fiscal Two Thousand And Nineteen [Member] | Australian BBSY [Member]
Debt Instrument [Line Items]
Interest rate margin							2.00%
Facility Due December 2019 [Member] | REA Group [Member]
Debt Instrument [Line Items]
Operating income leverage ratio				3.25%	3.25%
Interest coverage ratio				3.00%	3.00%
Unsecured revolving credit facility maximum capacity								$ 480
Percentage of applicable margin payable as commitment fee				40.00%	40.00%
Proceeds from term loan facilities					$ 170
Facility Due December 2019 [Member] | Maximum [Member] | REA Group [Member] | Australian BBSY [Member]
Debt Instrument [Line Items]
Interest rate margin				1.30%	1.30%
Facility Due December 2019 [Member] | Minimum [Member] | REA Group [Member] | Australian BBSY [Member]
Debt Instrument [Line Items]
Interest rate margin				0.85%	0.85%
Credit Facility Two Thousand Fourteen [Member] | Foxtel [Member]
Debt Instrument [Line Items]
Repayment of revolving credit facility						200
Due date							Jan. 31, 2020
Credit Facility Two Thousand Fifteen [Member] | Foxtel [Member]
Debt Instrument [Line Items]
Repayment of revolving credit facility						400
Due date	[1]						Jul. 31, 2020
Debt instrument fixed interest rate	[1]			0.00%				0.00%
Credit Facility Two Thousand Sixteen [Member] | Foxtel [Member]
Debt Instrument [Line Items]
Repayment of revolving credit facility						400
Due date	[1]						Sep. 11, 2021
Debt instrument fixed interest rate	[1]			0.00%				0.00%
Working Capital Facility 2017 [Member] | Foxtel [Member]
Debt Instrument [Line Items]
Due date	[1],[2],[3],[4]						Nov. 22, 2022
Debt instrument fixed interest rate	[1],[2],[3],[4]			3.90%				3.90%
Working Capital Facility Capacity						100
Facility Due December Two Zero One Nine [Member] | REA Group [Member]
Debt Instrument [Line Items]
Repayment of revolving credit facility					$ 240
News Corp Two Thousand And Nineteen Credit Agreement [Member] | Revised Line Of Credit Facility [Member]
Debt Instrument [Line Items]
Operating income leverage ratio				3.00%	3.00%
News Corp Two Thousand And Nineteen Credit Agreement [Member] | Unsecured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Letters of credit sublimit under credit facility				$ 100,000,000
Unsecured revolving credit facility maximum capacity				$ 750,000,000
News Corp Two Thousand And Nineteen Credit Agreement [Member] | Unsecured Revolving Credit Facility [Member] | Revised Line Of Credit Facility [Member]
Debt Instrument [Line Items]
Interest coverage ratio				3.00%	3.00%
Unsecured revolving credit facility maximum capacity				$ 1,000,000,000
Percentage of applicable margin payable as commitment fee				0.20%	0.20%
Proceeds from long term line of credit				$ 0
Line of credit facility maturity date				Dec. 12, 2024	Dec. 12, 2024
News Corp Two Thousand And Nineteen Credit Agreement [Member] | Unsecured Revolving Credit Facility [Member] | Base Rate [Member] | Revised Line Of Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate margin				0.375%	0.375%
News Corp Two Thousand And Nineteen Credit Agreement [Member] | Unsecured Revolving Credit Facility [Member] | Eurodollar [Member] | Revised Line Of Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate margin				1.375%	1.375%
Credit Agreement [Member] | Unsecured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Unsecured revolving credit facility available amount				$ 650,000,000
working capital facility 2017 Amended [Member] | Foxtel [Member]
Debt Instrument [Line Items]
Working Capital Facility Amended Capacity						$ 40
Debt instrument term							3 years

[1] During November 2019, certain subsidiaries of NXE Australia Pty Limited (“Foxtel” and together with such subsidiaries, the “Foxtel Debt Group”) repaid the outstanding borrowings under these facilities using a combination of new indebtedness and an A$200 million shareholder loan provided by the Company.

[2] As of December 31, 2019, the Foxtel Debt Group has undrawn commitments of $11 million under this facility for which it pays a commitment fee of 45% of the applicable margin.

[3] Borrowings under these facilities bear interest at a floating rate of the Australian BBSY plus an applicable margin of between 2.00% and 3.75% per annum depending on the Foxtel Debt Group’s net leverage ratio. As of December 31, 2019, the Foxtel Debt Group was paying a margin of 3.00% on drawn amounts under these facilities.

[4] During November 2019, the Foxtel Debt Group amended its 2017 Working Capital Facility which, among other things, extended the remaining term to three years, decreased the capacity under the facility from A$100 million to A$40 million and increased the applicable margin.