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Employee Benefit Plans (Narrative) (Details) - Qualified Pension Plans $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Discount rate (as a percent)	5.00%
Cash balance interest crediting rate (as a percent)	4.00%
Remeasurement gain (loss) recognized	$ 11
Increase (decrease) in plan assets	117
Increase in projected benefit obligation	(128)
Settlement charge	72
Regulatory Assets, Noncurrent
Defined Benefit Plan Disclosure [Line Items]
Settlement charge	60
Other Nonoperating Income (Expense)
Defined Benefit Plan Disclosure [Line Items]
Settlement charge	12
Accumulated Other Comprehensive Income (Loss), Net of Tax
Defined Benefit Plan Disclosure [Line Items]
Remeasurement gain (loss) recognized	1
Regulatory Assets, Noncurrent
Defined Benefit Plan Disclosure [Line Items]
Remeasurement gain (loss) recognized	$ 10

X

- Definition

Defined Benefit Plan, Plan Assets, Increase (Decrease) For Remeasurement Due To Settlement

+ References

No definition available.

+ Details

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- Definition

Defined Benefit Plan, Remeasurement Gain (Loss) Recognized In Statement Of Financial Position

+ References

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- Definition

Defined Benefit Plan, Settlement Charge

+ References

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X

- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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- Definition

Weighted-average interest crediting rate used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, cash balance and other defined benefit plans with promised interest crediting rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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- Definition

Amount of (increase) decrease to benefit obligation of defined benefit plan from remeasurement due to settlement. Excludes decrease to benefit obligation for settlement payment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(10)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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