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Related Party Transactions - Schedule of Net Revenue from Related Parties (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Affiliated Entity [Member]      
Related Party Transaction [Line Items]      
Related party revenue, net of expense [1] $ 240 $ 307 $ 319
[1] Related party revenue, net of expenses, includes nine months of affiliate fees earned by FOX SPORTS Australia from Foxtel.