Segment disclosures

Company overview

WATERS CORP /DE/

Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.

Revenue · Reported segment facts

30 dimension combinations 167 retained observations 6 reported periods

Counts describe retained dimensioned rows only. Periods and members can change across reports, and this view does not infer missing values or expected segment totals.

Material Reconciling Items · Waters Advanced Diagnostics

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:MaterialReconcilingItemsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04521000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04870000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04349000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-2862000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-28115000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2953000000 USD20260512Open filing evidence

Material Reconciling Items · Waters Analytical And Materials Sciences

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:MaterialReconcilingItemsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04756000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-041442000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04686000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-28709000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-281318000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-29609000000 USD20260512Open filing evidence

Material Reconciling Items · Waters Biosciences

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:MaterialReconcilingItemsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04368000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04600000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04232000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-03-290 USD20260512Open filing evidence

Operating Segments · Waters Advanced Diagnostics

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04521000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04870000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04349000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-2862000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-28115000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2953000000 USD20260512Open filing evidence

Operating Segments · Waters Advanced Diagnostics · CN

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember;srt:StatementGeographicalAxis=country:CN
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0440000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-0466000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0426000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-2810000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-2820000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2910000000 USD20260512Open filing evidence

Operating Segments · Waters Advanced Diagnostics · US

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember;srt:StatementGeographicalAxis=country:US
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04195000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04316000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04121000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-2819000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-2835000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2916000000 USD20260512Open filing evidence

Operating Segments · Waters Advanced Diagnostics · Americas

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember;srt:StatementGeographicalAxis=srt:AmericasMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04242000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04393000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04151000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-2825000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-2844000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2919000000 USD20260512Open filing evidence

Operating Segments · Waters Advanced Diagnostics · Asia Pacific

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember;srt:StatementGeographicalAxis=srt:AsiaPacificMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0495000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04161000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0466000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-2814000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-2829000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2915000000 USD20260512Open filing evidence

Operating Segments · Waters Advanced Diagnostics · European Union

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember;srt:StatementGeographicalAxis=us-gaap:EuropeanUnionMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04184000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04316000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04132000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-2823000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-2842000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2919000000 USD20260512Open filing evidence

Operating Segments · Waters Advanced Diagnostics · Americas Other

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember;srt:StatementGeographicalAxis=wat:AmericasOtherMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0447000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-0477000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0430000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-286000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-289000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-293000000 USD20260512Open filing evidence

Operating Segments · Waters Advanced Diagnostics · Asia Other

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAdvancedDiagnosticsMember;srt:StatementGeographicalAxis=wat:AsiaOtherMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0455000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-0495000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0440000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-284000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-289000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-295000000 USD20260512Open filing evidence

Operating Segments · Waters Analytical And Materials Sciences

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04756000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-041442000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04686000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-28709000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-281318000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-29609000000 USD20260512Open filing evidence

Operating Segments · Waters Analytical And Materials Sciences · CN

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember;srt:StatementGeographicalAxis=country:CN
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04118000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04218000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04100000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-28107000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-28188000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2981000000 USD20260512Open filing evidence

Operating Segments · Waters Analytical And Materials Sciences · US

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember;srt:StatementGeographicalAxis=country:US
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04226000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04430000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04204000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-28210000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-28410000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-29200000000 USD20260512Open filing evidence

Operating Segments · Waters Analytical And Materials Sciences · Americas

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember;srt:StatementGeographicalAxis=srt:AmericasMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04273000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04519000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04246000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-28255000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-28492000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-29237000000 USD20260512Open filing evidence

Operating Segments · Waters Analytical And Materials Sciences · Asia Pacific

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember;srt:StatementGeographicalAxis=srt:AsiaPacificMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04274000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04507000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04233000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-28252000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-28458000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-29206000000 USD20260512Open filing evidence

Operating Segments · Waters Analytical And Materials Sciences · European Union

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember;srt:StatementGeographicalAxis=us-gaap:EuropeanUnionMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04209000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04416000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04207000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-28202000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-28368000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-29166000000 USD20260512Open filing evidence

Operating Segments · Waters Analytical And Materials Sciences · Americas Other

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember;srt:StatementGeographicalAxis=wat:AmericasOtherMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0447000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-0489000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0442000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-2845000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-2882000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-2937000000 USD20260512Open filing evidence

Operating Segments · Waters Analytical And Materials Sciences · Asia Other

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersAnalyticalAndMaterialsSciencesMember;srt:StatementGeographicalAxis=wat:AsiaOtherMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04156000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04289000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04133000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-28145000000 USD20260811Open filing evidence
2025-01-01 – 2025-06-28270000000 USD20260811Open filing evidence
2025-01-01 – 2025-03-29125000000 USD20260512Open filing evidence

Operating Segments · Waters Biosciences

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04368000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04600000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04232000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-03-290 USD20260512Open filing evidence

Operating Segments · Waters Biosciences · CN

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember;srt:StatementGeographicalAxis=country:CN
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0448000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-0475000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0427000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-03-290 USD20260512Open filing evidence

Operating Segments · Waters Biosciences · US

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember;srt:StatementGeographicalAxis=country:US
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04149000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04239000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0490000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-03-290 USD20260512Open filing evidence

Operating Segments · Waters Biosciences · Americas

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember;srt:StatementGeographicalAxis=srt:AmericasMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04175000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04283000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-04108000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-03-290 USD20260512Open filing evidence

Operating Segments · Waters Biosciences · Asia Pacific

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember;srt:StatementGeographicalAxis=srt:AsiaPacificMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0481000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04132000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0451000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-03-290 USD20260512Open filing evidence

Operating Segments · Waters Biosciences · European Union

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember;srt:StatementGeographicalAxis=us-gaap:EuropeanUnionMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-04112000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-04185000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0473000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence

Operating Segments · Waters Biosciences · Americas Other

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember;srt:StatementGeographicalAxis=wat:AmericasOtherMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0426000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-0444000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0418000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-03-290 USD20260512Open filing evidence

Operating Segments · Waters Biosciences · Asia Other

Consolidation Items · Statement Business Segments · Statement Geographical

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wat:WatersBiosciencesMember;srt:StatementGeographicalAxis=wat:AsiaOtherMember
PeriodValueUnitFiledEvidence
2026-04-05 – 2026-07-0433000000 USD20260811Open filing evidence
2026-01-01 – 2026-07-0457000000 USD20260811Open filing evidence
2026-01-01 – 2026-04-0424000000 USD20260512Open filing evidence
2025-03-30 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-06-280 USD20260811Open filing evidence
2025-01-01 – 2025-03-290 USD20260512Open filing evidence

Customer Concentration Risk · Governmental And Academic Segment

Concentration Risk By Type · Statement Business Segments

Source dimensions us-gaap:ConcentrationRiskByTypeAxis=us-gaap:CustomerConcentrationRiskMember;us-gaap:StatementBusinessSegmentsAxis=wat:GovernmentalAndAcademicSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-03-3163012000 USD20180504Open filing evidence
2017-01-01 – 2017-04-0156856000 USD20180504Open filing evidence

Customer Concentration Risk · Industrial Segment

Concentration Risk By Type · Statement Business Segments

Source dimensions us-gaap:ConcentrationRiskByTypeAxis=us-gaap:CustomerConcentrationRiskMember;us-gaap:StatementBusinessSegmentsAxis=wat:IndustrialSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-03-31162330000 USD20180504Open filing evidence
2017-01-01 – 2017-04-01161303000 USD20180504Open filing evidence

Customer Concentration Risk · Pharmaceutical Segment

Concentration Risk By Type · Statement Business Segments

Source dimensions us-gaap:ConcentrationRiskByTypeAxis=us-gaap:CustomerConcentrationRiskMember;us-gaap:StatementBusinessSegmentsAxis=wat:PharmaceuticalSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-03-31305328000 USD20180504Open filing evidence
2017-01-01 – 2017-04-01279810000 USD20180504Open filing evidence