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Employee Benefits - Summary of Asset Class Allocation per Pension Plan Investment Policy and Weighted Average Asset Allocation (Details) | Dec. 31, 2021
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Equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, weighted average asset allocation, percentage | 66.00%
Equities | Minimum |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, policy range, percentage | 54.00%
Equities | Maximum |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, policy range, percentage | 60.00%
Fixed Income |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, weighted average asset allocation, percentage | 28.00%
Fixed Income | Minimum |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, policy range, percentage | 35.00%
Fixed Income | Maximum |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, policy range, percentage | 40.00%
Other Investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, weighted average asset allocation, percentage | 6.00%
Other Investments | Minimum |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, policy range, percentage | 5.00%
Other Investments | Maximum |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, policy range, percentage | 6.00%

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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