Additional Financial Information (Components of Other, Net) (Details) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Other Non Operating Income Expense [Line Items]
Transaction costs	[1]	$ (125)	$ (199)	$ (103)
U.K. Newspaper Matters Indemnity	[2]	(90)	(58)	(29)
Net gains on investments in equity securities	[3]	14	268	9
Settlement loss related to pension plans	[4]	0	0	(53)
Other		(47)	(42)	(33)
Total other, net		(248)	(19)	(39)
Television Broadcast Station Spectrum
Other Non Operating Income Expense [Line Items]
Gain on spectrum relinquishment	[5]	0	12	102
Shareholder Litigation
Other Non Operating Income Expense [Line Items]
Shareholder litigation settlement	[6]	$ 0	$ 0	$ 68

[1] The transaction costs are primarily related to the Separation and the Distribution which includes retention related costs and for fiscal 2020 include costs associated with the profits participants litigation (See Note 14—Commitments and Contingencies under the heading “Profits Participants Litigation”).

[2] See Note 14—Commitments and Contingencies under the heading “U.K. Newspaper Matters Indemnity.”

[3] Net gains on investments in equity securities for fiscal 2020 included the loss related to the change in fair value of the Company’s investment in Roku, which was sold in March 2020 (See Note 3—Acquisitions, Disposals and Other Transactions under the heading “Roku”).

[4] The settlement loss was primarily related to the legacy plans (See Note 15—Pension and Other Postretirement Benefits).

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

[6] See Note 14—Commitments and Contingencies under the heading “Shareholder Litigation.”