Additional Financial Information (Other, Net) (Parenthetical) (Details) $ in Millions	12 Months Ended
Jun. 30, 2017 USD ($)
FOX News
Other Non Operating Income Expense [Line Items]
Costs related to settlement of claims	$ 50

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

No definition available.

Name:	us-gaap_LitigationSettlementExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration