Employee Benefit Plans (Schedule of Projected Benefit Obligations in Excess of Fair Value of Plan Assets) (Details) - Pension Plans, Defined Benefit [Member] - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Change In Benefit Obligation [Line Items]
Defined Benefit Plan, Benefit Obligation	$ 73	$ 256
Defined Benefit Plan, Plan Assets, Amount	$ 0	$ 179