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Investments - Additional Information (Detail) (Foxtel [Member], USD $)
In Millions, unless otherwise specified
 6 Months Ended
Dec. 31, 2014
Foxtel [Member]
  
Investment [Line Items]  
Decrease in revenues $ 49nws_EquityMethodInvestmentSummarizedFinancialInformationIncreaseDecreaseInRevenue
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nws_FoxtelMember
Percentage of decrease in revenues 3.00%nws_EquityMethodInvestmentSummarizedFinancialInformationIncreaseDecreaseInRevenuePercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nws_FoxtelMember