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Employee Benefit Plans (Other Changes In Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other comprehensive income (loss) at December 31, prior year	$ (68)	$ (92)
Net gain (loss) arising during period	(7)	(15)
Actuarial loss (gain)	4	9
Curtailment loss recognized
Other comprehensive income (loss) at December 31, current year	(56)	(68)
Post-Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other comprehensive income (loss) at December 31, prior year	4	(2)
Net gain (loss) arising during period	10	6
Prior Service credit (cost) arising during period
Actuarial loss (gain)
Prior service cost		(1)
Other comprehensive income (loss) at December 31, current year	$ 14	$ 4

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Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan.

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