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Benefit Plans (Asset Allocations) (Details) | Dec. 31, 2022
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Equity Securities [Member] | Pension [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Composition of plan assets | 20.00%
Equity Securities [Member] | Postretirement Benefit Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Composition of plan assets | 56.00%
Corporate Bonds [Member] | Pension [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Composition of plan assets | 52.00%
Corporate Bonds [Member] | Postretirement Benefit Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Composition of plan assets | 33.00%
US Treasury And Foreign Government Securities and all other investments [Member] | Pension [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Composition of plan assets | 28.00%
US Treasury And Foreign Government Securities and all other investments [Member] | Postretirement Benefit Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Composition of plan assets | 11.00%
US Treasury and Foreign Government Securities [Member] | Pension [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Composition of plan assets | 19.00%
Asset Based Securities And Other Investments [Member] | Pension [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Composition of plan assets | 9.00%

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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. + References No definition available. + Details
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- 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
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