Additional Financial Information (Components of Other, Net) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Net (losses) gains on investments in equity securities	[1]	$ (567)	$ 211	$ (185)	$ 132
Transaction costs	[2]	(29)	(106)	(72)	(184)
U.K. Newspaper Matters Indemnity	[3]	(18)	(15)	(62)	(45)
Other		(18)	(6)	(26)	(19)
Total other, net		$ (632)	$ 84	$ (345)	$ (116)

[1] Net (losses) gains on investments in equity securities for the three and nine months ended March 31, 2020 included the losses related to changes in fair value of the Company’s investment in Roku which was sold in March 2020 (See Note 2—Acquisitions, Disposals and Other Transactions under the heading “Roku”).

[2] The transaction costs for the three and nine months ended March 31, 2020 and 2019 are primarily related to the Separation and the Distribution and include retention related costs and for the three and nine months ended March 31, 2020 also include costs associated with the profits participants litigation (See Note 11—Commitments and Contingencies under the heading “Profits Participants Litigation”). The transaction costs for the nine months ended March 31, 2020 were offset by an adjustment to the receivables from Disney pursuant to the Separation and Distribution Agreement.

[3] See Note 11—Commitments and Contingencies under the heading “U.K. Newspaper Matters Indemnity.”