Leases (Narrative) (Details) $ in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2019 USD ($) Option	Dec. 31, 2019 USD ($) Option
Lessor Lease Description [Line Items]
Total lease income	$ 10	$ 25
Production and Office Space
Lessor Lease Description [Line Items]
Initial term of lease arrangements	7 years	7 years
Lease arrangements renewal term	5 years	5 years
Number of renewal options | Option	2	2
Annual lease payments to be received	$ 50	$ 50