Commitments and Contingent Liabilities (Schedule of Operating Lease ROU Assets and Lease Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
ROU Asset at Lease Inception	$ 73	$ 73
Accumulated Amortization	(31)	(28)
Current ROU Asset	$ 42	$ 45