XML 269 R63.htm IDEA: XBRL DOCUMENT v3.22.4

Pension and Postretirement Health and Life Benefits (Plan Asset Allocations) (Details)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		100.00%	100.00%
Equity Securities [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		36.00%	45.00%
Equity Securities [Member] | Scenario, Forecast [Member] | Minimum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	35.00%
Equity Securities [Member] | Scenario, Forecast [Member] | Maximum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	50.00%
Debt Securities [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		62.00%	51.00%
Debt Securities [Member] | Scenario, Forecast [Member] | Minimum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	50.00%
Debt Securities [Member] | Scenario, Forecast [Member] | Maximum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	65.00%
Cash [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		2.00%	4.00%
Cash [Member] | Scenario, Forecast [Member] | Minimum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	0.00%
Cash [Member] | Scenario, Forecast [Member] | Maximum [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	5.00%

X

- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_DebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CashMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: