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Retirement Benefit Plans - Schedule of Target Allocation for Pension Plan Assets and Actual Pension Plan Asset Allocations (Details) - Pension Plan | Dec. 31, 2024 | Dec. 31, 2023
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Target assets allocation and actual asset allocations for US pension plan assets |  |
Percentage of Pension Plan Assets | 100.00% | 100.00%
Equity securities |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Percentage of Pension Plan Assets | 13.00% | 13.00%
Fixed income securities |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Percentage of Pension Plan Assets | 83.00% | 84.00%
Other investments |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Percentage of Pension Plan Assets | 4.00% | 3.00%
Minimum | Equity securities |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Current Target Allocation | 10.00% |
Minimum | Fixed income securities |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Current Target Allocation | 78.00% |
Minimum | Other investments |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Current Target Allocation | 2.00% |
Maximum | Equity securities |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Current Target Allocation | 14.00% |
Maximum | Fixed income securities |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Current Target Allocation | 90.00% |
Maximum | Other investments |  |
Target assets allocation and actual asset allocations for US pension plan assets |  |
Current Target Allocation | 6.00% |

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- Definition Defined benefit plan target and weighted average asset allocations for US pension plans. + References No definition available. + Details
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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 + 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 -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 + Details
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