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Schedule of Weighted Average Assumptions to Determine Pension Obligations (Detail) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Postretirement Benefit Plans |  |  |
Defined Benefit Plan Disclosure |  |  |
Discount rate | 5.00% | 2.60% | 2.20%
Initial medical trend | 7.20% | 7.30% | 7.30%
Ultimate health care trend | 4.50% | 4.50% | 4.50%
Medical cost trend rate decrease to ultimate rate in year | 2032 | 2029 | 2029
UNITED STATES |  |  |
Defined Benefit Plan Disclosure |  |  |
Discount rate | 4.90% | 2.60% |
Salary progression rate | 2.50% | 2.40% |
Foreign Pension Plans, Defined Benefit |  |  |
Defined Benefit Plan Disclosure |  |  |
Discount rate | 3.50% | 1.10% |
Salary progression rate | 2.10% | 2.20% |

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Ultimate trend rate for health care cost for defined benefit postretirement plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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