XML 88 R59.htm IDEA: XBRL DOCUMENT v2.4.1.9
Tesoro Logistics LP, Narrative (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 0 Months Ended 12 Months Ended
Nov. 22, 2013
Jan. 14, 2013
Dec. 31, 2014
Oct. 29, 2014
Dec. 31, 2013
Jun. 01, 2013
entities
Dec. 02, 2014
Capital Unit              
Number of assets           6tso_NumberOfAssets  
Percentage ownership     36.00%us-gaap_VariableInterestEntityOwnershipPercentage        
Limited partner common units outstanding (units)     28,181,748us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding        
General partner units outstanding (units)     1,631,448us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding        
Debt instrument, face amount       $ 1,300us-gaap_DebtInstrumentFaceAmount      
Goodwill     196us-gaap_Goodwill   41us-gaap_Goodwill    
Common units issued in offering (units) 6,300,000us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering 9,775,000us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering          
Price per unit (dollars per unit) $ 51.05us-gaap_EquityIssuancePerShareAmount $ 41.70us-gaap_EquityIssuancePerShareAmount          
Net proceeds from issuance of units 310us-gaap_PartnersCapitalAccountPublicSaleOfUnitsNetOfOfferingCosts 391us-gaap_PartnersCapitalAccountPublicSaleOfUnitsNetOfOfferingCosts          
General partners' capital account, units issued (units)   199,490us-gaap_GeneralPartnersCapitalAccountUnitsIssued          
TLGP              
Capital Unit              
Percentage ownership     2.00%us-gaap_VariableInterestEntityOwnershipPercentage
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_GeneralPartnerMember		        
Refined product terminal | TLLP              
Capital Unit              
Number of assets     24tso_NumberOfAssets
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= tso_ProductTerminalsMember
/ us-gaap_StatementBusinessSegmentsAxis
= tso_TesoroLogisticsLPMember		        
Marine terminals | TLLP              
Capital Unit              
Number of assets     4tso_NumberOfAssets
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= tso_MarineTerminalMember
/ us-gaap_StatementBusinessSegmentsAxis
= tso_TesoroLogisticsLPMember		        
Rockies Natural Gas Business              
Capital Unit              
Limited partner common units outstanding (units)             3,701,750us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis
= tso_RockiesNaturalGasBusinessAcquisitionMember
Goodwill     $ 155us-gaap_Goodwill
/ us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis
= tso_RockiesNaturalGasBusinessAcquisitionMember