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Pension and other postretirement benefits - Schedule of Target Allocation Ranges (Details) | Dec. 31, 2024
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United States | Minimum | Equity instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 10.00%
United States | Minimum | Debt instrument |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 65.00%
United States | Maximum | Equity instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 30.00%
United States | Maximum | Debt instrument |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 85.00%
United States | Pension Plans | Cash and cash equivalents |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
United States | Pension Plans | Real estate |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
United States | Pension Plans | Derivatives |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
United States | Pension Plans | Assets held by insurance company |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
United States | Pension Plans | Other |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
United States | Pension Plans | Minimum | Equity instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 10.00%
United States | Pension Plans | Minimum | Equity instruments | Developed markets |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 10.00%
United States | Pension Plans | Minimum | Equity instruments | Emerging markets |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 10.00%
United States | Pension Plans | Minimum | Debt instrument |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 65.00%
United States | Pension Plans | Minimum | Debt instrument | Non-government debt instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 65.00%
United States | Pension Plans | Minimum | Debt instrument | Government fixed interest instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 65.00%
United States | Pension Plans | Minimum | Investment funds |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
United States | Pension Plans | Maximum | Equity instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 30.00%
United States | Pension Plans | Maximum | Equity instruments | Developed markets |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 30.00%
United States | Pension Plans | Maximum | Equity instruments | Emerging markets |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 30.00%
United States | Pension Plans | Maximum | Debt instrument |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 85.00%
United States | Pension Plans | Maximum | Debt instrument | Non-government debt instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 85.00%
United States | Pension Plans | Maximum | Debt instrument | Government fixed interest instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 85.00%
United States | Pension Plans | Maximum | Investment funds |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 15.00%
Non-U.S. | Pension Plans | Minimum | Cash and cash equivalents |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
Non-U.S. | Pension Plans | Minimum | Equity instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 15.00%
Non-U.S. | Pension Plans | Minimum | Equity instruments | Developed markets |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 16.00%
Non-U.S. | Pension Plans | Minimum | Equity instruments | Emerging markets |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 1.00%
Non-U.S. | Pension Plans | Minimum | Debt instrument |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 25.00%
Non-U.S. | Pension Plans | Minimum | Debt instrument | Non-government debt instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 24.00%
Non-U.S. | Pension Plans | Minimum | Debt instrument | Government fixed interest instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 32.00%
Non-U.S. | Pension Plans | Minimum | Debt instrument | Government inflation-protected bonds |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 23.00%
Non-U.S. | Pension Plans | Minimum | Debt instrument | Asset-backed securities |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 9.00%
Non-U.S. | Pension Plans | Minimum | Debt instrument | Inflation-protected bonds |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 9.00%
Non-U.S. | Pension Plans | Minimum | Debt instrument | Structured debt |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 9.00%
Non-U.S. | Pension Plans | Minimum | Real estate |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 5.00%
Non-U.S. | Pension Plans | Minimum | Derivatives |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
Non-U.S. | Pension Plans | Minimum | Investment funds |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
Non-U.S. | Pension Plans | Minimum | Assets held by insurance company |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
Non-U.S. | Pension Plans | Minimum | Other |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 0.00%
Non-U.S. | Pension Plans | Maximum | Cash and cash equivalents |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 5.00%
Non-U.S. | Pension Plans | Maximum | Equity instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 25.00%
Non-U.S. | Pension Plans | Maximum | Equity instruments | Developed markets |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 24.00%
Non-U.S. | Pension Plans | Maximum | Equity instruments | Emerging markets |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 2.00%
Non-U.S. | Pension Plans | Maximum | Debt instrument |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 40.00%
Non-U.S. | Pension Plans | Maximum | Debt instrument | Non-government debt instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 35.00%
Non-U.S. | Pension Plans | Maximum | Debt instrument | Government fixed interest instruments |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 44.00%
Non-U.S. | Pension Plans | Maximum | Debt instrument | Government inflation-protected bonds |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 31.00%
Non-U.S. | Pension Plans | Maximum | Debt instrument | Asset-backed securities |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 16.00%
Non-U.S. | Pension Plans | Maximum | Debt instrument | Inflation-protected bonds |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 16.00%
Non-U.S. | Pension Plans | Maximum | Debt instrument | Structured debt |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 16.00%
Non-U.S. | Pension Plans | Maximum | Real estate |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 10.00%
Non-U.S. | Pension Plans | Maximum | Investment funds |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 5.00%
Non-U.S. | Pension Plans | Maximum | Assets held by insurance company |
Defined Benefit Plan Disclosure [Line Items] |
Target allocation ranges | 5.00%

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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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