Employee Benefit Plans (Schedule of Net Funded Status) (Details) - USD ($) $ in Millions		Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Change In Benefit Obligation [Line Items]
Defined Benefit Plan, Plan Assets, Amount		$ 158	$ 179
Defined Benefit Plan, Benefit Obligation		214	256
Defined Benefit Plan, Funded Status of Plan, Total		(56)	(77)
Qualified Plan [Member]
Defined Benefit Plan Change In Benefit Obligation [Line Items]
Defined Benefit Plan, Plan Assets, Amount		158	179
Defined Benefit Plan, Benefit Obligation		142	166
Defined Benefit Plan, Funded Status of Plan, Total		16	13
Nonqualified Plan [Member]
Defined Benefit Plan Change In Benefit Obligation [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
Defined Benefit Plan, Benefit Obligation	[1]	72	90
Defined Benefit Plan, Funded Status of Plan, Total	[1]	$ (72)	$ (90)

[1] For non-qualified plans, there are no required funding levels.