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Employee Benefit Plans - Acceptable Level of Volatility (Details)	Dec. 31, 2023
Equities | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Equities | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Equities | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	20.00%
Equities | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	77.00%
Equities | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	62.00%
Equities | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	87.00%
U.S. Large Cap | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
U.S. Large Cap | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
U.S. Large Cap | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	10.00%
U.S. Large Cap | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	28.00%
U.S. Large Cap | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	18.00%
U.S. Large Cap | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	38.00%
U.S. Mid Cap | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
U.S. Mid Cap | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
U.S. Mid Cap | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	5.00%
U.S. Mid Cap | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	18.00%
U.S. Mid Cap | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	13.00%
U.S. Mid Cap | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	23.00%
U.S. Small Cap | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
U.S. Small Cap | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
U.S. Small Cap | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	5.00%
U.S. Small Cap | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	9.00%
U.S. Small Cap | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	4.00%
U.S. Small Cap | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	14.00%
Developed | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Developed | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Developed | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	5.00%
Developed | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	16.00%
Developed | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	11.00%
Developed | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	21.00%
Emerging Markets | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Emerging Markets | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Emerging Markets | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	5.00%
Emerging Markets | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	6.00%
Emerging Markets | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Emerging Markets | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	9.00%
Fixed Income | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	95.00%
Fixed Income | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Fixed Income | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	100.00%
Fixed Income | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	21.00%
Fixed Income | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	11.00%
Fixed Income | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	31.00%
Investment Grade | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	95.00%
Investment Grade | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Investment Grade | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	100.00%
Investment Grade | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	21.00%
Investment Grade | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	11.00%
Investment Grade | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	31.00%
Cash Equivalent | Qualified Plan I
Defined Benefit Plan Disclosure [Line Items]
Target allocation	5.00%
Cash Equivalent | Qualified Plan I | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Cash Equivalent | Qualified Plan I | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	100.00%
Cash Equivalent | Qualified Plan II
Defined Benefit Plan Disclosure [Line Items]
Target allocation	2.00%
Cash Equivalent | Qualified Plan II | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	0.00%
Cash Equivalent | Qualified Plan II | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation	40.00%

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- Definition

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+ References

No definition available.

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- Definition

Percentage of target 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/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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