Acquisitions, Disposals and Other Transactions - Schedule of Total Aggregate Purchase Price Transaction Value/ Fair Value of Acquisition (Parenthetical) (Detail)	1 Months Ended
Apr. 30, 2018
Foxtel [Member]
Business Acquisition [Line Items]
Percentage of fair value	35.00%
FOX SPORTS Australia [Member]
Business Acquisition [Line Items]
Percentage of fair value	35.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Period Type:	duration