Segment disclosures

Company overview

Williams Partners L.P.

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

Revenue · Reported segment facts

60 dimension combinations 761 retained observations 23 reported periods Partial retained history

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.

Intersegment Elimination · Product · Access Midstream

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AccessMidstreamMember
PeriodValueUnitFiledEvidence
2015-01-01 – 2015-12-310 USD20160226Open filing evidence
2015-07-01 – 2015-09-300 USD20151029Open filing evidence
2015-01-01 – 2015-09-300 USD20151029Open filing evidence
2015-04-01 – 2015-06-300 USD20150730Open filing evidence
2015-01-01 – 2015-06-300 USD20150730Open filing evidence
2015-01-01 – 2015-03-310 USD20150430Open filing evidence
2014-01-01 – 2014-12-310 USD20160226Open filing evidence
2014-07-01 – 2014-09-300 USD20151029Open filing evidence
2014-01-01 – 2014-09-300 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Intersegment Elimination · Product · Atlantic Gulf

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AtlanticGulfMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30-42000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30-74000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31-32000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31-176000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30-41000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30-136000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30-42000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30-95000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31-53000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31-354000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30-108000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30-274000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30-97000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30-166000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31-69000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31-95000000 USD20160226Open filing evidence

Intersegment Elimination · Product · Central

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:CentralMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-03-310 USD20160505Open filing evidence
2015-04-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-03-310 USD20160505Open filing evidence

Intersegment Elimination · Product · Ngl And Petchem Services

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NglAndPetchemServicesMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30-37000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30-75000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31-38000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31-157000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30-41000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30-113000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30-35000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30-72000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31-37000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31-259000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30-62000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30-205000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30-67000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30-143000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31-76000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31-294000000 USD20160226Open filing evidence

Intersegment Elimination · Product · Northeast G And P

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NortheastGAndPMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30-6000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30-11000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31-5000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31-18000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30-6000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30-12000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30-5000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30-6000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31-1000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31-5000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-300 USD20151029Open filing evidence
2014-01-01 – 2014-09-300 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Intersegment Elimination · Product · West

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:WestMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30-74000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30-122000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31-48000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31-221000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30-51000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30-167000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30-60000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30-116000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31-56000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31-476000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30-133000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30-371000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30-112000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30-238000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31-126000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31-708000000 USD20160226Open filing evidence

Intersegment Elimination · Service · Access Midstream

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AccessMidstreamMember
PeriodValueUnitFiledEvidence
2015-01-01 – 2015-12-310 USD20160226Open filing evidence
2015-07-01 – 2015-09-300 USD20151029Open filing evidence
2015-01-01 – 2015-09-300 USD20151029Open filing evidence
2015-04-01 – 2015-06-300 USD20150730Open filing evidence
2015-01-01 – 2015-06-300 USD20150730Open filing evidence
2015-01-01 – 2015-03-310 USD20150430Open filing evidence
2014-01-01 – 2014-12-310 USD20160226Open filing evidence
2014-07-01 – 2014-09-300 USD20151029Open filing evidence
2014-01-01 – 2014-09-300 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Intersegment Elimination · Service · Atlantic Gulf

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AtlanticGulfMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30-1000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30-2000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31-1000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31-4000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30-1000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30-3000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30-1000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30-2000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31-1000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31-4000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30-1000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30-3000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30-1000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30-2000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31-1000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31-10000000 USD20160226Open filing evidence

Intersegment Elimination · Service · Central

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:CentralMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30-3000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30-6000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31-3000000 USD20160505Open filing evidence
2015-04-01 – 2015-06-30-5000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30-12000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31-7000000 USD20160505Open filing evidence

Intersegment Elimination · Service · Ngl And Petchem Services

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NglAndPetchemServicesMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-03-310 USD20160505Open filing evidence
2015-01-01 – 2015-12-310 USD20160226Open filing evidence
2015-07-01 – 2015-09-300 USD20151029Open filing evidence
2015-01-01 – 2015-09-300 USD20151029Open filing evidence
2015-04-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-03-310 USD20160505Open filing evidence
2014-01-01 – 2014-12-310 USD20160226Open filing evidence
2014-07-01 – 2014-09-300 USD20151029Open filing evidence
2014-01-01 – 2014-09-300 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Intersegment Elimination · Service · Northeast G And P

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NortheastGAndPMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30-9000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30-12000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31-3000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31-7000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30-3000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30-5000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30-2000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30-2000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-310 USD20160505Open filing evidence
2014-01-01 – 2014-12-31-1000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-300 USD20151029Open filing evidence
2014-01-01 – 2014-09-300 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Intersegment Elimination · Service · West

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:WestMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-03-310 USD20160505Open filing evidence
2015-01-01 – 2015-12-310 USD20160226Open filing evidence
2015-07-01 – 2015-09-300 USD20151029Open filing evidence
2015-01-01 – 2015-09-300 USD20151029Open filing evidence
2015-04-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-03-310 USD20160505Open filing evidence
2014-01-01 – 2014-12-310 USD20160226Open filing evidence
2014-07-01 – 2014-09-300 USD20151029Open filing evidence
2014-01-01 – 2014-09-300 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-31-1000000 USD20160226Open filing evidence

Operating Segments · Product · Access Midstream

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AccessMidstreamMember
PeriodValueUnitFiledEvidence
2015-01-01 – 2015-12-310 USD20160226Open filing evidence
2015-07-01 – 2015-09-300 USD20151029Open filing evidence
2015-01-01 – 2015-09-300 USD20151029Open filing evidence
2015-04-01 – 2015-06-300 USD20150730Open filing evidence
2015-01-01 – 2015-06-300 USD20150730Open filing evidence
2015-01-01 – 2015-03-310 USD20150430Open filing evidence
2014-01-01 – 2014-12-310 USD20160226Open filing evidence
2014-07-01 – 2014-09-300 USD20151029Open filing evidence
2014-01-01 – 2014-09-300 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Operating Segments · Product · Atlantic Gulf

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AtlanticGulfMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30105000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30174000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-3169000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31463000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30118000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30364000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30125000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30246000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31121000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31853000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30226000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30656000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30209000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30430000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31221000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31925000000 USD20160226Open filing evidence

Operating Segments · Product · Central

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:CentralMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-03-310 USD20160505Open filing evidence
2015-04-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-03-310 USD20160505Open filing evidence

Operating Segments · Product · Ngl And Petchem Services

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NglAndPetchemServicesMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30463000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30869000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31406000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-311921000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30492000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-301448000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30513000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30956000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31443000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-312986000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30796000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-302322000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30751000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-301526000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31775000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-313155000000 USD20160226Open filing evidence

Operating Segments · Product · Northeast G And P

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NortheastGAndPMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-3033000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-3057000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-3124000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31127000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-3027000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30100000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-3035000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-3073000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-3138000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31230000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-3068000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30165000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-3037000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-3097000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-3160000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31166000000 USD20160226Open filing evidence

Operating Segments · Product · West

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:WestMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-3078000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30130000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-3152000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31257000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-3062000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30194000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-3068000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30132000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-3164000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31546000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30155000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30432000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30132000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30277000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31145000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31772000000 USD20160226Open filing evidence

Operating Segments · Service · Access Midstream

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AccessMidstreamMember
PeriodValueUnitFiledEvidence
2015-01-01 – 2015-12-311523000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30320000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30955000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30336000000 USD20150730Open filing evidence
2015-01-01 – 2015-06-30635000000 USD20150730Open filing evidence
2015-01-01 – 2015-03-31299000000 USD20150430Open filing evidence
2014-01-01 – 2014-12-31765000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30292000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30292000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Operating Segments · Service · Atlantic Gulf

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AtlanticGulfMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30448000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30914000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31466000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-311881000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30477000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-301401000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30466000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30924000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31458000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-311501000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30364000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-301107000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30364000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30743000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31379000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-311424000000 USD20160226Open filing evidence

Operating Segments · Service · Central

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:CentralMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30258000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30513000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31255000000 USD20160505Open filing evidence
2015-04-01 – 2015-06-30265000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30517000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31252000000 USD20160505Open filing evidence

Operating Segments · Service · Ngl And Petchem Services

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NglAndPetchemServicesMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-3054000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-3092000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-3138000000 USD20160505Open filing evidence
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2015-07-01 – 2015-09-3037000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30103000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-3034000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-3066000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-3132000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31126000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-3032000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-3094000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-3032000000 USD20150730Open filing evidence
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2014-01-01 – 2014-03-3130000000 USD20150430Open filing evidence
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Operating Segments · Service · Northeast G And P

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NortheastGAndPMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30208000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30419000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31211000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31548000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30139000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30421000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30216000000 RestatedUSD20160802Open filing evidence
2015-01-01 – 2015-06-30412000000 RestatedUSD20160802Open filing evidence
2015-01-01 – 2015-03-31196000000 RestatedUSD20160505Open filing evidence
2014-01-01 – 2014-12-31451000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30114000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30320000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30107000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30206000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-3199000000 USD20150430Open filing evidence
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Operating Segments · Service · West

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:WestMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30255000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30518000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31263000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-311055000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30263000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30783000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30258000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30520000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31262000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-311050000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30265000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30782000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30261000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30517000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31256000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-311054000000 USD20160226Open filing evidence

Operating Segments · Access Midstream

Consolidation Items · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AccessMidstreamMember
PeriodValueUnitFiledEvidence
2015-01-01 – 2015-12-311523000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30320000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30955000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30336000000 USD20150730Open filing evidence
2015-01-01 – 2015-06-30635000000 USD20150730Open filing evidence
2015-01-01 – 2015-03-31299000000 USD20150430Open filing evidence
2014-01-01 – 2014-12-31765000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30292000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30292000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Operating Segments · Atlantic Gulf

Consolidation Items · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AtlanticGulfMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-30707000000 USD20180802Open filing evidence
2018-01-01 – 2018-06-301424000000 USD20180802Open filing evidence
2018-01-01 – 2018-03-31717000000 USD20180503Open filing evidence
2017-01-01 – 2017-12-312723000000 USD2018-05-03 · 15:41:01.000ZOpen filing evidence
2017-07-01 – 2017-09-30670000000 USD20171102Open filing evidence
2017-01-01 – 2017-09-302012000000 USD20171102Open filing evidence
2017-04-01 – 2017-06-30672000000 USD20180802Open filing evidence
2017-01-01 – 2017-06-301342000000 USD20180802Open filing evidence
2017-01-01 – 2017-03-31670000000 USD20180503Open filing evidence
2016-01-01 – 2016-12-312448000000 RestatedUSD2018-05-03 · 15:41:01.000ZOpen filing evidence
2016-07-01 – 2016-09-30659000000 RestatedUSD20171102Open filing evidence
2016-01-01 – 2016-09-301769000000 RestatedUSD20171102Open filing evidence
2016-04-01 – 2016-06-30563000000 RestatedUSD20170803Open filing evidence
2016-01-01 – 2016-06-301110000000 RestatedUSD20170803Open filing evidence
2016-01-01 – 2016-03-31547000000 RestatedUSD20170504Open filing evidence
2015-01-01 – 2015-12-312386000000 RestatedUSD2018-05-03 · 15:41:01.000ZOpen filing evidence
2015-07-01 – 2015-09-30595000000 USD20161031Open filing evidence
2015-01-01 – 2015-09-301765000000 USD20161031Open filing evidence
2015-04-01 – 2015-06-30591000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-301170000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31579000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-312354000000 USD20170222Open filing evidence
2014-07-01 – 2014-09-30590000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-301763000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30573000000 USD20150730Open filing evidence
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2014-01-01 – 2014-03-31600000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-312349000000 USD20160226Open filing evidence

Operating Segments · Central

Consolidation Items · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wpz:CentralMember
PeriodValueUnitFiledEvidence
2016-01-01 – 2016-12-311241000000 USD20170222Open filing evidence
2016-07-01 – 2016-09-30255000000 USD20161031Open filing evidence
2016-01-01 – 2016-09-30768000000 USD20161031Open filing evidence
2016-04-01 – 2016-06-30258000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30513000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31255000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-311287000000 USD20170222Open filing evidence
2015-07-01 – 2015-09-30270000000 USD20161031Open filing evidence
2015-01-01 – 2015-09-30787000000 USD20161031Open filing evidence
2015-04-01 – 2015-06-30265000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30517000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31252000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31678000000 USD20170222Open filing evidence

Operating Segments · Ngl And Petchem Services

Consolidation Items · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NglAndPetchemServicesMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-300 USD20180802Open filing evidence
2018-01-01 – 2018-06-300 USD20180802Open filing evidence
2018-01-01 – 2018-03-310 USD20180503Open filing evidence
2017-01-01 – 2017-12-31372000000 USD2018-05-03 · 15:41:01.000ZOpen filing evidence
2017-07-01 – 2017-09-309000000 USD20171102Open filing evidence
2017-01-01 – 2017-09-30372000000 USD20171102Open filing evidence
2017-04-01 – 2017-06-30161000000 USD20180802Open filing evidence
2017-01-01 – 2017-06-30363000000 USD20180802Open filing evidence
2017-01-01 – 2017-03-31202000000 USD20180503Open filing evidence
2016-01-01 – 2016-12-31828000000 RestatedUSD2018-05-03 · 15:41:01.000ZOpen filing evidence
2016-07-01 – 2016-09-30258000000 RestatedUSD20171102Open filing evidence
2016-01-01 – 2016-09-30630000000 RestatedUSD20171102Open filing evidence
2016-04-01 – 2016-06-30196000000 RestatedUSD20170803Open filing evidence
2016-01-01 – 2016-06-30372000000 RestatedUSD20170803Open filing evidence
2016-01-01 – 2016-03-31176000000 RestatedUSD20170504Open filing evidence
2015-01-01 – 2015-12-31732000000 RestatedUSD2018-05-03 · 15:41:01.000ZOpen filing evidence
2015-07-01 – 2015-09-30529000000 USD20161031Open filing evidence
2015-01-01 – 2015-09-301551000000 USD20161031Open filing evidence
2015-04-01 – 2015-06-30547000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-301022000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31475000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-313112000000 USD20170222Open filing evidence
2014-07-01 – 2014-09-30828000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-302416000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30783000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-301588000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31805000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-313267000000 USD20160226Open filing evidence

Operating Segments · Northeast G And P

Consolidation Items · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NortheastGAndPMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-30311000000 USD20180802Open filing evidence
2018-01-01 – 2018-06-30641000000 USD20180802Open filing evidence
2018-01-01 – 2018-03-31330000000 USD20180503Open filing evidence
2017-01-01 – 2017-12-311163000000 USD2018-05-03 · 15:41:01.000ZOpen filing evidence
2017-07-01 – 2017-09-30275000000 USD20171102Open filing evidence
2017-01-01 – 2017-09-30829000000 USD20171102Open filing evidence
2017-04-01 – 2017-06-30269000000 USD20180802Open filing evidence
2017-01-01 – 2017-06-30554000000 USD20180802Open filing evidence
2017-01-01 – 2017-03-31285000000 USD20180503Open filing evidence
2016-01-01 – 2016-12-311032000000 RestatedUSD2018-05-03 · 15:41:01.000ZOpen filing evidence
2016-07-01 – 2016-09-30257000000 RestatedUSD20171102Open filing evidence
2016-01-01 – 2016-09-30749000000 RestatedUSD20171102Open filing evidence
2016-04-01 – 2016-06-30250000000 RestatedUSD20170803Open filing evidence
2016-01-01 – 2016-06-30492000000 RestatedUSD20170803Open filing evidence
2016-01-01 – 2016-03-31242000000 RestatedUSD20170504Open filing evidence
2015-01-01 – 2015-12-31951000000 RestatedUSD2018-05-03 · 15:41:01.000ZOpen filing evidence
2015-07-01 – 2015-09-30221000000 RestatedUSD20161031Open filing evidence
2015-01-01 – 2015-09-30706000000 RestatedUSD20161031Open filing evidence
2015-04-01 – 2015-06-30251000000 RestatedUSD20160802Open filing evidence
2015-01-01 – 2015-06-30485000000 RestatedUSD20160802Open filing evidence
2015-01-01 – 2015-03-31234000000 RestatedUSD20160505Open filing evidence
2014-01-01 – 2014-12-31780000000 RestatedUSD20170222Open filing evidence
2014-07-01 – 2014-09-30182000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30485000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30144000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30303000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31159000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31501000000 USD20160226Open filing evidence

Operating Segments · West

Consolidation Items · Statement Business Segments

Source dimensions us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=wpz:WestMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-301173000000 USD20180802Open filing evidence
2018-01-01 – 2018-06-302316000000 USD20180802Open filing evidence
2018-01-01 – 2018-03-311143000000 USD20180503Open filing evidence
2017-01-01 – 2017-12-314259000000 USD2018-05-03 · 15:41:01.000ZOpen filing evidence
2017-07-01 – 2017-09-301029000000 USD20171102Open filing evidence
2017-01-01 – 2017-09-302965000000 USD20171102Open filing evidence
2017-04-01 – 2017-06-30962000000 USD20180802Open filing evidence
2017-01-01 – 2017-06-301936000000 USD20180802Open filing evidence
2017-01-01 – 2017-03-31974000000 USD20180503Open filing evidence
2016-01-01 – 2016-12-313708000000 RestatedUSD2018-05-03 · 15:41:01.000ZOpen filing evidence
2016-07-01 – 2016-09-30890000000 RestatedUSD20171102Open filing evidence
2016-01-01 – 2016-09-302497000000 RestatedUSD20171102Open filing evidence
2016-04-01 – 2016-06-30834000000 RestatedUSD20170803Open filing evidence
2016-01-01 – 2016-06-301607000000 RestatedUSD20170803Open filing evidence
2016-01-01 – 2016-03-31773000000 RestatedUSD20170504Open filing evidence
2015-01-01 – 2015-12-313619000000 RestatedUSD2018-05-03 · 15:41:01.000ZOpen filing evidence
2015-07-01 – 2015-09-30325000000 USD20161031Open filing evidence
2015-01-01 – 2015-09-30977000000 USD20161031Open filing evidence
2015-04-01 – 2015-06-30326000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30652000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31326000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-311596000000 USD20170222Open filing evidence
2014-07-01 – 2014-09-30420000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-301214000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30393000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30794000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31401000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-311826000000 USD20160226Open filing evidence

Product · Access Midstream

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AccessMidstreamMember
PeriodValueUnitFiledEvidence
2015-01-01 – 2015-12-310 USD20160226Open filing evidence
2015-07-01 – 2015-09-300 USD20151029Open filing evidence
2015-01-01 – 2015-09-300 USD20151029Open filing evidence
2015-04-01 – 2015-06-300 USD20150730Open filing evidence
2015-01-01 – 2015-06-300 USD20150730Open filing evidence
2015-01-01 – 2015-03-310 USD20150430Open filing evidence
2014-01-01 – 2014-12-310 USD20160226Open filing evidence
2014-07-01 – 2014-09-300 USD20151029Open filing evidence
2014-01-01 – 2014-09-300 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Product · Atlantic Gulf

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AtlanticGulfMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-3063000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30100000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-3137000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31287000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-3077000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30228000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-3083000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30151000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-3168000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31499000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30118000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30382000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30112000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30264000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31152000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31830000000 USD20160226Open filing evidence

Product · Central

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:CentralMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-06-300 USD20160802Open filing evidence
2016-01-01 – 2016-03-310 USD20160505Open filing evidence
2015-04-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-06-300 USD20160802Open filing evidence
2015-01-01 – 2015-03-310 USD20160505Open filing evidence

Product · Ngl And Petchem Services

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NglAndPetchemServicesMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30426000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30794000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31368000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-311764000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30451000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-301335000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30478000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30884000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31406000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-312727000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30734000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-302117000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30684000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-301383000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31699000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-312861000000 USD20160226Open filing evidence

Product · Northeast G And P

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NortheastGAndPMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-3027000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-3046000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-3119000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31109000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-3021000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-3088000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-3030000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-3067000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-3137000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31225000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-3068000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30165000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-3037000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-3097000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-3160000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31166000000 USD20160226Open filing evidence

Product · West

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=wpz:WestMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-304000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-308000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-314000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-3136000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-3011000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-3027000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-308000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-3016000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-318000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-3170000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-3022000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-3061000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-3020000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-3039000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-3119000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-3164000000 USD20160226Open filing evidence

Service · Access Midstream

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AccessMidstreamMember
PeriodValueUnitFiledEvidence
2015-01-01 – 2015-12-311523000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30320000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30955000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30336000000 USD20150730Open filing evidence
2015-01-01 – 2015-06-30635000000 USD20150730Open filing evidence
2015-01-01 – 2015-03-31299000000 USD20150430Open filing evidence
2014-01-01 – 2014-12-31765000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30292000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30292000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-06-300 USD20150730Open filing evidence
2014-01-01 – 2014-03-310 USD20150430Open filing evidence
2013-01-01 – 2013-12-310 USD20160226Open filing evidence

Service · Atlantic Gulf

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:AtlanticGulfMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30447000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30912000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31465000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-311877000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30476000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-301398000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30465000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30922000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31457000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-311497000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30363000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-301104000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30363000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30741000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31378000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-311414000000 USD20160226Open filing evidence

Service · Central

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:CentralMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30255000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30507000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31252000000 USD20160505Open filing evidence
2015-04-01 – 2015-06-30260000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30505000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31245000000 USD20160505Open filing evidence

Service · Ngl And Petchem Services

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NglAndPetchemServicesMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-3054000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-3092000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-3138000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31139000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-3037000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30103000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-3034000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-3066000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-3132000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-31126000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-3032000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-3094000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-3032000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-3062000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-3130000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31112000000 USD20160226Open filing evidence

Service · Northeast G And P

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:NortheastGAndPMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30199000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30407000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31208000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-31541000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30136000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30416000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30214000000 RestatedUSD20160802Open filing evidence
2015-01-01 – 2015-06-30410000000 RestatedUSD20160802Open filing evidence
2015-01-01 – 2015-03-31196000000 RestatedUSD20160505Open filing evidence
2014-01-01 – 2014-12-31450000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30114000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30320000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30107000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30206000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-3199000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-31335000000 USD20160226Open filing evidence

Service · West

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=wpz:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=wpz:WestMember
PeriodValueUnitFiledEvidence
2016-04-01 – 2016-06-30255000000 USD20160802Open filing evidence
2016-01-01 – 2016-06-30518000000 USD20160802Open filing evidence
2016-01-01 – 2016-03-31263000000 USD20160505Open filing evidence
2015-01-01 – 2015-12-311055000000 USD20160226Open filing evidence
2015-07-01 – 2015-09-30263000000 USD20151029Open filing evidence
2015-01-01 – 2015-09-30783000000 USD20151029Open filing evidence
2015-04-01 – 2015-06-30258000000 USD20160802Open filing evidence
2015-01-01 – 2015-06-30520000000 USD20160802Open filing evidence
2015-01-01 – 2015-03-31262000000 USD20160505Open filing evidence
2014-01-01 – 2014-12-311050000000 USD20160226Open filing evidence
2014-07-01 – 2014-09-30265000000 USD20151029Open filing evidence
2014-01-01 – 2014-09-30782000000 USD20151029Open filing evidence
2014-04-01 – 2014-06-30261000000 USD20150730Open filing evidence
2014-01-01 – 2014-06-30517000000 USD20150730Open filing evidence
2014-01-01 – 2014-03-31256000000 USD20150430Open filing evidence
2013-01-01 – 2013-12-311053000000 USD20160226Open filing evidence

Barnett Shale

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:BarnettShaleMember
PeriodValueUnitFiledEvidence
2014-07-01 – 2014-09-3080406000 USD20141030Open filing evidence
2014-01-01 – 2014-09-30252012000 USD20141030Open filing evidence
2014-04-01 – 2014-06-3083788000 USD20140730Open filing evidence
2014-01-01 – 2014-06-30171606000 USD20140730Open filing evidence
2014-01-01 – 2014-03-3187818000 USD20140501Open filing evidence
2013-01-01 – 2013-12-31433709000 USD20140303Open filing evidence
2013-07-01 – 2013-09-3094182000 USD20141030Open filing evidence
2013-01-01 – 2013-09-30277650000 USD20141030Open filing evidence
2013-04-01 – 2013-06-3090384000 USD20140730Open filing evidence
2013-01-01 – 2013-06-30183468000 USD20140730Open filing evidence
2013-01-01 – 2013-03-3193084000 USD20140501Open filing evidence
2012-01-01 – 2012-12-31395467000 USD20140303Open filing evidence

Chesapeake Energy Marketing Inc

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:ChesapeakeEnergyMarketingIncMember
PeriodValueUnitFiledEvidence
2014-07-01 – 2014-09-30256500000 USD20141030Open filing evidence
2014-01-01 – 2014-09-30726600000 USD20141030Open filing evidence
2014-04-01 – 2014-06-30240600000 USD20140730Open filing evidence
2014-01-01 – 2014-06-30470100000 USD20140730Open filing evidence
2014-01-01 – 2014-03-31229500000 USD20140501Open filing evidence
2013-07-01 – 2013-09-30219900000 USD20141030Open filing evidence
2013-01-01 – 2013-09-30633000000 USD20141030Open filing evidence
2013-04-01 – 2013-06-30210600000 USD20140730Open filing evidence
2013-01-01 – 2013-06-30413100000 USD20140730Open filing evidence
2013-01-01 – 2013-03-31202500000 USD20140501Open filing evidence

Consolidated

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:ConsolidatedMember
PeriodValueUnitFiledEvidence
2013-04-01 – 2013-06-30247242000 USD20130801Open filing evidence
2013-01-01 – 2013-06-30484201000 USD20130801Open filing evidence
2013-01-01 – 2013-03-31236959000 USD20130503Open filing evidence

Eagle Ford

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:EagleFordMember
PeriodValueUnitFiledEvidence
2014-07-01 – 2014-09-3090912000 USD20141030Open filing evidence
2014-01-01 – 2014-09-30253018000 USD20141030Open filing evidence
2014-04-01 – 2014-06-3084016000 USD20140730Open filing evidence
2014-01-01 – 2014-06-30162106000 USD20140730Open filing evidence
2014-01-01 – 2014-03-3178090000 USD20140501Open filing evidence
2013-01-01 – 2013-12-31278282000 USD20140303Open filing evidence
2013-07-01 – 2013-09-3074494000 USD20141030Open filing evidence
2013-01-01 – 2013-09-30200205000 USD20141030Open filing evidence
2013-04-01 – 2013-06-3067752000 USD20140730Open filing evidence
2013-01-01 – 2013-06-30125711000 USD20140730Open filing evidence
2013-01-01 – 2013-03-3157959000 USD20140501Open filing evidence
2012-01-01 – 2012-12-317232000 USD20140303Open filing evidence

Haynesville

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:HaynesvilleMember
PeriodValueUnitFiledEvidence
2014-07-01 – 2014-09-3033807000 USD20141030Open filing evidence
2014-01-01 – 2014-09-3090340000 USD20141030Open filing evidence
2014-04-01 – 2014-06-3029076000 USD20140730Open filing evidence
2014-01-01 – 2014-06-3056533000 USD20140730Open filing evidence
2014-01-01 – 2014-03-3127457000 USD20140501Open filing evidence
2013-01-01 – 2013-12-31119209000 USD20140303Open filing evidence
2013-07-01 – 2013-09-3028418000 USD20141030Open filing evidence
2013-01-01 – 2013-09-3092513000 USD20141030Open filing evidence
2013-04-01 – 2013-06-3030621000 USD20140730Open filing evidence
2013-01-01 – 2013-06-3064095000 USD20140730Open filing evidence
2013-01-01 – 2013-03-3133474000 USD20140501Open filing evidence
2012-01-01 – 2012-12-3168184000 USD20140303Open filing evidence

Marcellus Shale

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:MarcellusShaleMember
PeriodValueUnitFiledEvidence
2014-07-01 – 2014-09-304431000 USD20141030Open filing evidence
2014-01-01 – 2014-09-309732000 USD20141030Open filing evidence
2014-04-01 – 2014-06-303930000 USD20140730Open filing evidence
2014-01-01 – 2014-06-305301000 USD20140730Open filing evidence
2014-01-01 – 2014-03-311371000 USD20140501Open filing evidence
2013-01-01 – 2013-12-3110989000 USD20140303Open filing evidence
2013-07-01 – 2013-09-303009000 USD20141030Open filing evidence
2013-01-01 – 2013-09-3010750000 USD20141030Open filing evidence
2013-04-01 – 2013-06-304012000 USD20140730Open filing evidence
2013-01-01 – 2013-06-307741000 USD20140730Open filing evidence
2013-01-01 – 2013-03-313729000 USD20140501Open filing evidence
2012-01-01 – 2012-12-31783000 USD20140303Open filing evidence

Mid Continent Area

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:MidContinentAreaMember
PeriodValueUnitFiledEvidence
2014-07-01 – 2014-09-3052867000 USD20141030Open filing evidence
2014-01-01 – 2014-09-30156771000 USD20141030Open filing evidence
2014-04-01 – 2014-06-3052648000 USD20140730Open filing evidence
2014-01-01 – 2014-06-30103904000 USD20140730Open filing evidence
2014-01-01 – 2014-03-3151256000 USD20140501Open filing evidence
2013-01-01 – 2013-12-31171875000 USD20140303Open filing evidence
2013-07-01 – 2013-09-3041658000 USD20141030Open filing evidence
2013-01-01 – 2013-09-30127377000 USD20141030Open filing evidence
2013-04-01 – 2013-06-3044804000 USD20140730Open filing evidence
2013-01-01 – 2013-06-3085719000 USD20140730Open filing evidence
2013-01-01 – 2013-03-3140915000 USD20140501Open filing evidence
2012-01-01 – 2012-12-31136312000 USD20140303Open filing evidence

Niobrara

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:NiobraraMember
PeriodValueUnitFiledEvidence
2014-07-01 – 2014-09-307638000 USD20141030Open filing evidence
2014-01-01 – 2014-09-3019727000 USD20141030Open filing evidence
2014-04-01 – 2014-06-305577000 USD20140730Open filing evidence
2014-01-01 – 2014-06-3012089000 USD20140730Open filing evidence
2014-01-01 – 2014-03-316512000 USD20140501Open filing evidence
2013-01-01 – 2013-12-3115095000 USD20140303Open filing evidence
2013-07-01 – 2013-09-304146000 USD20141030Open filing evidence
2013-01-01 – 2013-09-308879000 USD20141030Open filing evidence
2013-04-01 – 2013-06-302431000 USD20140730Open filing evidence
2013-01-01 – 2013-06-304733000 USD20140730Open filing evidence
2013-01-01 – 2013-03-312302000 USD20140501Open filing evidence
2012-01-01 – 2012-12-31116000 USD20140303Open filing evidence

Utica

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=acmp:UticaMember
PeriodValueUnitFiledEvidence
2014-07-01 – 2014-09-3043788000 USD20141030Open filing evidence
2014-01-01 – 2014-09-30102261000 USD20141030Open filing evidence
2014-04-01 – 2014-06-3033899000 USD20140730Open filing evidence
2014-01-01 – 2014-06-3058473000 USD20140730Open filing evidence
2014-01-01 – 2014-03-3124574000 USD20140501Open filing evidence
2013-01-01 – 2013-12-3144063000 USD20140303Open filing evidence
2013-07-01 – 2013-09-3015036000 USD20141030Open filing evidence
2013-01-01 – 2013-09-3027770000 USD20141030Open filing evidence
2013-04-01 – 2013-06-307238000 USD20140730Open filing evidence
2013-01-01 – 2013-06-3012734000 USD20140730Open filing evidence
2013-01-01 – 2013-03-315496000 USD20140501Open filing evidence
2012-01-01 – 2012-12-31353000 USD20140303Open filing evidence

Corporate

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateMember
PeriodValueUnitFiledEvidence
2014-04-01 – 2014-06-300 USD20140730Open filing evidence
2014-01-01 – 2014-06-300 USD20140730Open filing evidence
2014-01-01 – 2014-03-310 USD20140501Open filing evidence
2013-04-01 – 2013-06-300 USD20140730Open filing evidence
2013-01-01 – 2013-06-300 USD20140730Open filing evidence
2013-01-01 – 2013-03-310 USD20140501Open filing evidence

Corporate · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2014-01-01 – 2014-12-315000 USD20150225Open filing evidence

Barnett Shale · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=wpz:BarnettShaleMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2014-01-01 – 2014-12-31463645000 USD20150225Open filing evidence
2013-01-01 – 2013-12-31433709000 USD20150225Open filing evidence
2012-01-01 – 2012-12-31395467000 USD20150225Open filing evidence

Eagle Ford Shale · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=wpz:EagleFordShaleMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2014-01-01 – 2014-12-31348904000 USD20150225Open filing evidence
2013-01-01 – 2013-12-31278282000 USD20150225Open filing evidence
2012-01-01 – 2012-12-317232000 USD20150225Open filing evidence

Haynesville Shale · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=wpz:HaynesvilleShaleMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2014-01-01 – 2014-12-31160138000 USD20150225Open filing evidence
2013-01-01 – 2013-12-31119209000 USD20150225Open filing evidence
2012-01-01 – 2012-12-3168184000 USD20150225Open filing evidence

Marcellus Shale · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=wpz:MarcellusShaleMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2014-01-01 – 2014-12-3115136000 USD20150225Open filing evidence
2013-01-01 – 2013-12-3110989000 USD20150225Open filing evidence
2012-01-01 – 2012-12-31783000 USD20150225Open filing evidence

Mid Continent · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=wpz:MidContinentMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2014-01-01 – 2014-12-31208819000 USD20150225Open filing evidence
2013-01-01 – 2013-12-31171875000 USD20150225Open filing evidence
2012-01-01 – 2012-12-31136312000 USD20150225Open filing evidence

Niobrara Shale · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=wpz:NiobraraShaleMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2014-01-01 – 2014-12-3128329000 USD20150225Open filing evidence
2013-01-01 – 2013-12-3115095000 USD20150225Open filing evidence
2012-01-01 – 2012-12-31116000 USD20150225Open filing evidence

Utica Shale · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=wpz:UticaShaleMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2014-01-01 – 2014-12-31153963000 USD20150225Open filing evidence
2013-01-01 – 2013-12-3144063000 USD20150225Open filing evidence
2012-01-01 – 2012-12-31353000 USD20150225Open filing evidence