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Retirement Plans - Defined Benefit Plan, Actual Plan Asset Allocation (Detail) | Dec. 31, 2024 | Dec. 31, 2023
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U.S. Retiree Healthcare Plan [Member] | Retiree Healthcare Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 100.00% | 100.00%
U.S. Retiree Healthcare Plan [Member] | Equity Securities | Retiree Healthcare Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 65.00% | 70.00%
U.S. Retiree Healthcare Plan [Member] | Debt Securities [Member] | Retiree Healthcare Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 35.00% | 30.00%
U.S. Retiree Healthcare Plan [Member] | Cash and Cash Equivalents [Member] | Retiree Healthcare Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 0.00% | 0.00%
U.S. Retiree Healthcare Plan [Member] | Insurance Contracts And Other [Member] | Retiree Healthcare Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 0.00% | 0.00%
Non-U.S. Pension Plans [Member] | Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 100.00% | 100.00%
Non-U.S. Pension Plans [Member] | Equity Securities | Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 6.00% | 4.00%
Non-U.S. Pension Plans [Member] | Debt Securities [Member] | Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 17.00% | 18.00%
Non-U.S. Pension Plans [Member] | Cash and Cash Equivalents [Member] | Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 1.00% | 2.00%
Non-U.S. Pension Plans [Member] | Insurance Contracts And Other [Member] | Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total defined benefit plan asset allocation | 76.00% | 76.00%

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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 -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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