Goodwill And Other Intangibles (Narrative) (Details) $ in Millions	Dec. 31, 2021 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Intangibles subject to amortization, estimated amortization expense, next 12 months	$ 44
Intangibles subject to amortization, estimated amortization expense, year 2	40
Intangibles subject to amortization, estimated amortization expense, year 3	40
Intangibles subject to amortization, estimated amortization expense, year 4	35
Intangibles subject to amortization, estimated amortization expense, year 5	30
Intangibles subject to amortization, estimated amortization expense cumulatively thereafter	$ 73