Additional Financial Information (Other, Net) (Details) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Other Non Operating Income Expense [Line Items]
Net unrealized gains on investments	[1]	$ 268	$ 0	$ 0
Transaction costs	[2]	(199)	(103)	0
U.K. Newspaper Matters Indemnity	[3]	(58)	(29)	(54)
Settlement loss related to pension plans	[4]	0	(53)	(25)
Other	[5]	(42)	(24)	(52)
Total other, net		(19)	(39)	(131)
Television Broadcast Station Spectrum
Other Non Operating Income Expense [Line Items]
Gain on spectrum relinquishment	[6]	12	102	0
Shareholder Litigation
Other Non Operating Income Expense [Line Items]
Shareholder litigation settlement	[7]	$ 0	$ 68	$ 0

[1] Represents the net unrealized gains related to changes in fair value of the Company’s investments in Roku and The Stars Group which are recognized in the Statements of Operations in accordance with ASC 321 (See Note 6—Fair Value).

[2] The transaction costs for fiscal 2019 and 2018 are primarily related to the Separation and the Distribution which includes retention related costs.

[3] See Note 13—Commitments and Contingencies under the heading “U.K. Newspaper Matters Indemnity”.

[4] The settlement loss was primarily related to the Shared Plans (See Note 14—Pension and Other Postretirement Benefits).

[5] Other for fiscal 2017 included approximately $50 million of costs related to settlements of claims arising out of allegations of sexual harassment and discrimination at the Company’s FOX News business (See Note 13—Commitments and Contingencies under the heading “FOX News”.

[6] See Note 3—Acquisitions, Disposals and Other Transactions under the heading “Fiscal 2018”.

[7] See Note 13—Commitments and Contingencies under the heading “Shareholder Litigation”.