Additional Financial Information (Components of Other Non-current Assets) (Details) - USD ($) $ in Millions		Jun. 30, 2019	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Investments	[1]	$ 865	$ 275
Inventories, net		205	121
Other	[2]	455	363
Total other non-current assets		$ 1,525	$ 759

[1] Includes investments accounted for at fair value on a recurring basis of $761 million and $257 million as of June 30, 2019 and 2018, respectively (See Note 6—Fair Value). See Note 3—Acquisitions, Disposals and Other Transactions for information on recent investments.

[2] Other includes $249 million and $265 million of assets in the Grantor Trust as of June 30, 2019 and 21CF Grantor Trust attributable to the Company as of June 30, 2018, respectively (See Note 14—Pension and Other Postretirement Benefits).