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BUSINESS (Details) | 6 Months Ended
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Jun. 30, 2025 country
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Number of countries company operates | 50
Number of countries where product is found (more than) | 100

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- Definition The number of countries in which the entity operates as of balance sheet date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Number of countries where product found. + References No definition available. + Details
Name: | wab_NumberOfCountriesWhereProductFound
Namespace Prefix: | wab_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration