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Retirement Benefit Plans (Actual Allocation Percentage and Target Allocation Percentage for the U.S. Pension Plan Assets) (Details) - Pension Plan | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
U.S. equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation | 44.90% | 48.70%
Non-U.S. equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation | 20.50% | 19.70%
Fixed income securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation | 34.10% | 31.20%
Money market funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation | 0.50% | 0.40%
Minimum | U.S. equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation percentage | 36.00% |
Minimum | Non-U.S. equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation percentage | 16.00% |
Minimum | Fixed income securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation percentage | 30.00% |
Minimum | Money market funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation percentage | 0.00% |
Maximum | U.S. equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation percentage | 54.00% |
Maximum | Non-U.S. equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation percentage | 24.00% |
Maximum | Fixed income securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation percentage | 40.00% |
Maximum | Money market funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual allocation percentage | 10.00% |

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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 https://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 https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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