Additional Financial Information (Components of Other, Net) (Details) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2020	Sep. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Transaction costs	[1]	$ 451	$ (45)
Net gains on investments in equity securities	[2]	121	49
Other		(53)	(19)
Total other, net		$ 519	$ (15)

[1] The transaction costs for the three months ended September 30, 2020 are primarily related to the partial settlement from Disney of $462 million related to the reimbursement of the Company’s prepayment of its share of the Divestiture Tax (See Note 1—Description of Business and Basis of Presentation). The transaction costs for the three months ended September 30, 2019 are primarily related to costs associated with the profits participants litigation (See Note 14—Commitments and Contingencies in the 2020 Form 10-K under the heading “Profits Participants Litigation”) and the Separation and the Distribution (See Note 1—Description of Business and Basis of Presentation in the 2020 Form 10-K under the heading “The Distribution”) and included retention related costs.

[2] Net gains on investments in equity securities for the three months ended September 30, 2020 included the gain related to the change in fair value of the Company’s investment in Flutter (See Note 4—Fair Value) and for the three months ended September 30, 2019 included the gains related to the changes in fair value of the Company’s investments in Roku, Inc. and The Stars Group Inc. (See Note 6—Fair Value in the 2020 Form 10-K).