Organization record
Dominion Energy Midstream Partners, LP
All evidence-backed facts for this organization, identity resolved across official registers.
Facts on record
Newest first; every row links to its evidence page.
| Fact | Value | Period | Source |
|---|---|---|---|
| accounts_payable | {"amount": 27200000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_payable | {"amount": 24600000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_payable | {"amount": 19100000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_payable | {"amount": 26500000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_payable | {"amount": 28600000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_payable | {"amount": 20000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_payable | {"amount": 18900000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_payable | {"amount": 21500000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_payable | {"amount": 18300000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_payable | {"amount": 7800000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_payable | {"amount": 11700000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_payable | {"amount": 8600000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_payable | {"amount": 43900000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_payable | {"amount": 109700000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_payable | {"amount": 106400000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_payable | {"amount": 3300000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 22700000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 19900000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| capex | {"amount": 222500000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2018-09-30 | sec_edgar |
| capex | {"amount": 178800000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2018-06-30 | sec_edgar |
| capex | {"amount": 110400000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2018-03-31 | sec_edgar |
| capex | {"amount": 919000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2017-12-31 | sec_edgar |
| capex | {"amount": 726900000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2017-09-30 | sec_edgar |
| capex | {"amount": 536200000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2017-06-30 | sec_edgar |
| capex | {"amount": 361100000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2017-03-31 | sec_edgar |
| capex | {"amount": 1276800000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "c | 2016-12-31 | sec_edgar |
| capex | {"amount": 961600000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2016-09-30 | sec_edgar |
| capex | {"amount": 653600000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2016-06-30 | sec_edgar |
| capex | {"amount": 299700000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2016-03-31 | sec_edgar |
| capex | {"amount": 1282100000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "c | 2015-12-31 | sec_edgar |
| capex | {"amount": 850000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2015-09-30 | sec_edgar |
| capex | {"amount": 479000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2015-06-30 | sec_edgar |
| capex | {"amount": 176100000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2015-03-31 | sec_edgar |
| capex | {"amount": 572200000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 78400000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 61800000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 27800000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 11000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 78800000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 70500000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 91100000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 39600000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 78100000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 24200000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 35400000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 35000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 107000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 77300000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 48000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 175400000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 11200000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 102500000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 182500000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 132500000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 23700000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2017-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 103800000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 95500000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2017-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 116100000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 64600000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2016-12-31 | sec_edgar |
| cashflow_financing | {"amount": 1940100000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2018-09-30 | sec_edgar |
| cashflow_financing | {"amount": 22400000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2018-06-30 | sec_edgar |
| cashflow_financing | {"amount": 520000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2017-09-30 | sec_edgar |
| cashflow_financing | {"amount": 393000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2017-06-30 | sec_edgar |
| cashflow_financing | {"amount": 303000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2017-03-31 | sec_edgar |
| cashflow_financing | {"amount": 1838800000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2016-12-31 | sec_edgar |
| cashflow_financing | {"amount": 774100000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2016-09-30 | sec_edgar |
| cashflow_financing | {"amount": 513000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2016-06-30 | sec_edgar |
| cashflow_financing | {"amount": 231700000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2016-03-31 | sec_edgar |
| cashflow_financing | {"amount": 898800000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2015-12-31 | sec_edgar |
| cashflow_financing | {"amount": 586400000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2015-09-30 | sec_edgar |
| cashflow_financing | {"amount": 257800000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2015-06-30 | sec_edgar |
| cashflow_financing | {"amount": -7700000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2015-03-31 | sec_edgar |
| cashflow_financing | {"amount": 579700000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-12-31 | sec_edgar |
| cashflow_investing | {"amount": -2211200000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", " | 2018-09-30 | sec_edgar |
| cashflow_investing | {"amount": -180400000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2018-06-30 | sec_edgar |
| cashflow_investing | {"amount": -728200000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2017-09-30 | sec_edgar |
| cashflow_investing | {"amount": -537600000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2017-06-30 | sec_edgar |
| cashflow_investing | {"amount": -361800000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2017-03-31 | sec_edgar |
| cashflow_investing | {"amount": -2122800000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", " | 2016-12-31 | sec_edgar |
| cashflow_investing | {"amount": -962100000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2016-09-30 | sec_edgar |
| cashflow_investing | {"amount": -654200000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2016-06-30 | sec_edgar |
| cashflow_investing | {"amount": -299800000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2016-03-31 | sec_edgar |
| cashflow_investing | {"amount": -1282700000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", " | 2015-12-31 | sec_edgar |
| cashflow_investing | {"amount": -850400000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2015-09-30 | sec_edgar |
| cashflow_investing | {"amount": -480600000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2015-06-30 | sec_edgar |
| cashflow_investing | {"amount": -176400000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2015-03-31 | sec_edgar |
| cashflow_investing | {"amount": -571600000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2014-12-31 | sec_edgar |
| cashflow_operating | {"amount": 349900000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2018-09-30 | sec_edgar |
| cashflow_operating | {"amount": 316800000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2018-06-30 | sec_edgar |
| cashflow_operating | {"amount": 167700000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContin | 2018-03-31 | sec_edgar |
| cashflow_operating | {"amount": 282900000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContin | 2017-12-31 | sec_edgar |
| cashflow_operating | {"amount": 247400000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2017-09-30 | sec_edgar |
| cashflow_operating | {"amount": 175500000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2017-06-30 | sec_edgar |
| cashflow_operating | {"amount": 110600000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContin | 2017-03-31 | sec_edgar |
| cashflow_operating | {"amount": 288600000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContin | 2016-12-31 | sec_edgar |
| cashflow_operating | {"amount": 228600000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContin | 2016-09-30 | sec_edgar |
| cashflow_operating | {"amount": 130400000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContin | 2016-06-30 | sec_edgar |
| cashflow_operating | {"amount": 68500000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2016-03-31 | sec_edgar |
| cashflow_operating | {"amount": 243500000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContin | 2015-12-31 | sec_edgar |
| cashflow_operating | {"amount": 195600000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2015-09-30 | sec_edgar |
| cashflow_operating | {"amount": 124700000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2015-06-30 | sec_edgar |
| cashflow_operating | {"amount": 56700000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2015-03-31 | sec_edgar |
| cashflow_operating | {"amount": 156100000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2014-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 126607641, "concept": "dei:EntityCommonStockSharesOutstanding" | 2018-10-12 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 126607641, "concept": "dei:EntityCommonStockSharesOutstanding" | 2018-07-13 | sec_edgar |
| current_assets | {"amount": 340400000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| current_assets | {"amount": 334600000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| current_assets | {"amount": 233000000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| current_assets | {"amount": 140700000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| current_assets | {"amount": 196400000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| current_assets | {"amount": 171900000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| current_assets | {"amount": 198400000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| current_assets | {"amount": 170900000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| current_assets | {"amount": 109000000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| current_assets | {"amount": 79000000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| current_assets | {"amount": 91100000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| current_assets | {"amount": 95800000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| current_assets | {"amount": 188800000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| current_assets | {"amount": 132200000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| current_assets | {"amount": 108100000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| current_assets | {"amount": 226000000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| current_liabilities | {"amount": 152000000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| current_liabilities | {"amount": 236200000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| current_liabilities | {"amount": 249600000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| current_liabilities | {"amount": 147100000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| current_liabilities | {"amount": 416600000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| current_liabilities | {"amount": 400300000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| current_liabilities | {"amount": 398300000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| current_liabilities | {"amount": 149200000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| current_liabilities | {"amount": 97000000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| current_liabilities | {"amount": 364200000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| current_liabilities | {"amount": 63700000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| current_liabilities | {"amount": 60000000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| current_liabilities | {"amount": 98400000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| current_liabilities | {"amount": 166100000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| current_liabilities | {"amount": 146200000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| current_liabilities | {"amount": 31800000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 126607641} | 2018-10-12 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 126607641} | 2018-07-13 | sec_edgar |
| dei:EntityPublicFloat | {"amount": 1400000000, "currency": "USD"} | 2017-06-30 | sec_edgar |
| dei:EntityPublicFloat | {"amount": 770000000, "currency": "USD"} | 2016-06-30 | sec_edgar |
| dei:EntityPublicFloat | {"amount": 771000000, "currency": "USD"} | 2015-06-30 | sec_edgar |
| dei:EntityPublicFloat | {"amount": 0, "currency": "USD"} | 2014-06-30 | sec_edgar |
| depreciation_amortization | {"amount": 50300000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2017-06-30 | sec_edgar |
| depreciation_amortization | {"amount": 24900000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2017-03-31 | sec_edgar |
| depreciation_amortization | {"amount": 56600000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2016-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 30600000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2016-09-30 | sec_edgar |
| depreciation_amortization | {"amount": 20200000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2016-06-30 | sec_edgar |
| depreciation_amortization | {"amount": 10000000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2016-03-31 | sec_edgar |
| depreciation_amortization | {"amount": 40400000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2015-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 30400000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2015-09-30 | sec_edgar |
| depreciation_amortization | {"amount": 20500000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2015-06-30 | sec_edgar |
| depreciation_amortization | {"amount": 10600000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2015-03-31 | sec_edgar |
| depreciation_amortization | {"amount": 37700000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2014-12-31 | sec_edgar |
| goodwill | {"amount": 819200000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2018-09-30 | sec_edgar |
| goodwill | {"amount": 819200000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2018-06-30 | sec_edgar |
| goodwill | {"amount": 819200000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2018-03-31 | sec_edgar |
| goodwill | {"amount": 819200000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2017-12-31 | sec_edgar |
| goodwill | {"amount": 819200000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2017-09-30 | sec_edgar |
| goodwill | {"amount": 819200000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2017-06-30 | sec_edgar |
| goodwill | {"amount": 819200000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2017-03-31 | sec_edgar |
| goodwill | {"amount": 819200000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2016-12-31 | sec_edgar |
| goodwill | {"amount": 295500000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2016-09-30 | sec_edgar |
| goodwill | {"amount": 295500000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2016-06-30 | sec_edgar |
| goodwill | {"amount": 295500000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2016-03-31 | sec_edgar |
| goodwill | {"amount": 295500000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2015-12-31 | sec_edgar |
| goodwill | {"amount": 295500000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2015-09-30 | sec_edgar |
| goodwill | {"amount": 295500000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2015-06-30 | sec_edgar |
| goodwill | {"amount": 295500000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2015-03-31 | sec_edgar |
| goodwill | {"amount": 45900000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2014-12-31 | sec_edgar |
| income_tax_expense | {"amount": 0, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2017-12-31 | sec_edgar |
| income_tax_expense | {"amount": 6300000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2016-12-31 | sec_edgar |
| income_tax_expense | {"amount": 1200000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2016-09-30 | sec_edgar |
| income_tax_expense | {"amount": 1200000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2016-09-30 | sec_edgar |
| income_tax_expense | {"amount": 0, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2016-06-30 | sec_edgar |
| income_tax_expense | {"amount": 0, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2016-06-30 | sec_edgar |
| income_tax_expense | {"amount": 0, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2016-03-31 | sec_edgar |
| income_tax_expense | {"amount": 2100000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2015-12-31 | sec_edgar |
| income_tax_expense | {"amount": 2100000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2015-09-30 | sec_edgar |
| income_tax_expense | {"amount": 0, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2015-09-30 | sec_edgar |
| income_tax_expense | {"amount": 0, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2015-06-30 | sec_edgar |
| income_tax_expense | {"amount": 2100000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2015-06-30 | sec_edgar |
| income_tax_expense | {"amount": 2100000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2015-03-31 | sec_edgar |
| income_tax_expense | {"amount": 51800000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2014-12-31 | sec_edgar |
| industry_sic | {"code": "4922", "scheme": "SIC", "description": "Natural Gas Transmission"} | sec_edgar | |
| intangible_assets | {"amount": 58700000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2018-09-30 | sec_edgar |
| intangible_assets | {"amount": 59200000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2018-06-30 | sec_edgar |
| intangible_assets | {"amount": 59800000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2018-03-31 | sec_edgar |
| intangible_assets | {"amount": 35100000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2017-12-31 | sec_edgar |
| intangible_assets | {"amount": 35300000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2017-09-30 | sec_edgar |
| intangible_assets | {"amount": 35100000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2017-06-30 | sec_edgar |
| intangible_assets | {"amount": 19400000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2016-12-31 | sec_edgar |
| intangible_assets | {"amount": 14800000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2016-09-30 | sec_edgar |
| intangible_assets | {"amount": 15100000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2016-06-30 | sec_edgar |
| intangible_assets | {"amount": 15500000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2016-03-31 | sec_edgar |
| intangible_assets | {"amount": 15800000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2015-12-31 | sec_edgar |
| intangible_assets | {"amount": 15900000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2015-09-30 | sec_edgar |
| intangible_assets | {"amount": 16300000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2015-06-30 | sec_edgar |
| intangible_assets | {"amount": 15900000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2015-03-31 | sec_edgar |
| intangible_assets | {"amount": 12100000, "concept": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "currency" | 2014-12-31 | sec_edgar |