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Retirement Programs - Narrative (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) multiemployerPlan employee shares | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2024 USD ($)
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Number of multiemployer plans participated in | multiemployerPlan | 8 |  |  |
Estimated number of union employees in multiemployer plans | employee | 200 |  |  |
Multiemployer plan, contributions by employer, percentage of employee contributions |  | 1.00% | 1.00% |
Number of plans in red zone | multiemployerPlan | 2 |  |  |
Pension contributions | $ 46 | $ 51 | $ 42 |
Pensions |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Annual pay credits, percent of eligible compensation | 4.00% |  |  |
Minimum | Scenario, Forecast |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Estimated pension plan contributions during next fiscal year |  |  |  | $ 35
Maximum | Scenario, Forecast |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Estimated pension plan contributions during next fiscal year |  |  |  | $ 45
Praxair U.S. Defined Contribution Savings Plans |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Defined contribution plan contributions | $ 59 | 56 | 51 |
Shares of common stock in esops (in shares) | shares | 1,660,694 |  |  |
Praxair International Defined Contribution Savings Plans |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Defined contribution plan contributions | $ 60 | $ 80 | $ 101 |

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- Definition Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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