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Retirement Plans - Defined Benefit Plan, Actual Plan Asset Allocation (Detail)	Dec. 31, 2024	Dec. 31, 2023
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.

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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

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