Additional Financial Information (Other, Net) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Acquisition related and other transaction costs	[1]	$ (106)	$ (13)	$ (184)	$ (45)
Unrealized gains on investments	[2]	204	0	132	0
U.K. Newspaper Matters Indemnity	[3]	(15)	(22)	(45)	(19)
Settlement loss related to pension plans	[4]	0	(1)	0	(51)
Shareholder litigation settlement	[5]	0	68	0	68
Other		1	(9)	(19)	(28)
Total other, net		$ 84	$ 23	$ (116)	$ (75)

[1] The acquisition related and other transaction costs for the three and nine months ended March 31, 2019 and 2018 are related to the Separation and the Distribution which includes retention related costs.

[2] Represents the unrealized gains related to changes in fair value of the Company’s investment in Roku which are recognized in net income in accordance with ASU 2016-01 (See Note 1 – Description of Business and Basis of Presentation under the heading “Recently Adopted and Recently Issued Accounting Guidance and U.S. Tax Reform”).

[3] See Note 9 – Commitments and Contingencies.

[4] The settlement loss was primarily related to the Shared Plans (See Note 12 – Pension and Other Postretirement Benefits in the Form 10).

[5] See Note 11 – Commitments and Contingencies under the heading “Shareholder Litigation” in the Form 10