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Commitments and Contingencies - Schedule of Commitments by Fiscal Year Maturity (Parenthetical) (Detail)
$ in Millions
 12 Months Ended
Jun. 30, 2017
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
Rights payable period 2023
Operating leases, expected payment period 2062
Subleases from 21st Century Fox $ 210