Employee Benefit Plans (Expected Future Benefit Payments To Be Paid) (Details) $ in Millions	Dec. 31, 2022 USD ($)
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 64
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	70
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	76
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	82
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	85
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	524
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	14
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	13
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	12
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	11
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	10
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ 44