Leases (Summary Of Weighted Average Remaining Lease Term And Discount Rate) (Details)	Jun. 30, 2021
Leases [Abstract]
Weighted average remaining lease term, Operating leases	7 years
Weighted average remaining lease term, Finance leases	4 years
Weighted average discount rate, Operating leases	8.00%	[1]
Weighted average discount rate, Finance leases	13.00%	[1]

[1] Includes discount rates of leases in local currency and U.S dollar.