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Pension and Other Benefit Plans - Weighted-Average Allocation of Plan Assets and Target Allocation by Asset Category (Detail) | Dec. 31, 2024 | Dec. 31, 2023
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US |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 100.00% |
Weighted-average allocation of plan assets | 100.00% | 100.00%
International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 100.00% |
Weighted-average allocation of plan assets | 100.00% | 100.00%
Cash and cash equivalents | US |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 1.00% | 1.00%
Cash and cash equivalents | US | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 0.00% |
Cash and cash equivalents | US | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 3.00% |
Cash and cash equivalents | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 1.00% | 3.00%
Cash and cash equivalents | International | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 0.00% |
Cash and cash equivalents | International | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 5.00% |
Equity securities | US |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 2.00% |
Equity securities | US | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 0.00% |
Equity securities | US | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 5.00% |
Equity securities | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 3.00% | 1.00%
Equity securities | International | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 0.00% |
Equity securities | International | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 5.00% |
Debt securities | US |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 82.00% | 84.00%
Debt securities | US | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 80.00% |
Debt securities | US | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 90.00% |
Debt securities | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 69.00% | 69.00%
Debt securities | International | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 60.00% |
Debt securities | International | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 70.00% |
Private equity and real estate | US |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 9.00% | 10.00%
Private equity and real estate | US | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 5.00% |
Private equity and real estate | US | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 12.00% |
Private equity and real estate | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 17.00% | 17.00%
Private equity and real estate | International | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 15.00% |
Private equity and real estate | International | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 20.00% |
Private debt | US |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 6.00% | 5.00%
Private debt | US | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 2.00% |
Private debt | US | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 8.00% |
Private debt | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted-average allocation of plan assets | 10.00% | 10.00%
Private debt | International | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 9.00% |
Private debt | International | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation percentage of assets | 15.00% |

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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 -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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