Acquisitions, Disposals and Other Transactions (Fiscal 2019) (Narrative) (Details) $ in Millions	3 Months Ended
Sep. 30, 2018 USD ($)
Caffeine and Caffeine Studios
Investment Holdings [Line Items]
Payments to acquire investments	$ 100

Amount of cash outflow to acquire investments classified as other.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquireOtherInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration