v3.5.0.2
Related-Party Transactions, Agreements (Details)
$ in Millions
12 Months Ended
Dec. 31, 2015
USD ($)
option
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Related Party Transaction      
Receivables from affiliate related to third-party revenues | $ $ 105 $ 83 $ 28
Other Commitments      
2016, Commitment | $ 169    
2017, Commitment | $ 169    
2018, Commitment | $ 169    
2019, Commitment | $ 169    
2020, Commitment | $ 169    
Indemnification deductible | $ $ 1    
Commercial Agreements      
Related Party Transaction      
Length of time to apply shortfall payments (months) 3 months    
Transportation Services Agreement (High Plains Pipeline System)      
Related Party Transaction      
Initiation date April 2011    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Refinery shutdown notice period (months) [1] 12 months    
Second Amended and Restated Trucking Transportation Services Agreement (High Plains System)      
Related Party Transaction      
Initiation date April 2011    
Term (years) 5 years    
Renewals, number (options) 1    
Renewals, term (years) 5 years    
Refinery shutdown notice period (months) [1] 12 months    
Second Amended and Restated Master Terminalling Services Agreement      
Related Party Transaction      
Initiation date April 2011    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Refinery shutdown notice period (months) [1] 12 months    
Amended Salt Lake City Storage and Transportation Services Agreement      
Related Party Transaction      
Initiation date April 2011    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Refinery shutdown notice period (months) [1] 12 months    
Amorco Terminal Use and Throughput Agreement (Martinez Marine)      
Related Party Transaction      
Initiation date April 2012    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Refinery shutdown notice period (months) [1] 12 months    
Amended Anacortes Track Use and Throughput Agreement      
Related Party Transaction      
Initiation date November 2012    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Carson Storage Services Agreement      
Related Party Transaction      
Initiation date June 2013    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Amended and Restated Master Terminalling Services Agreement - Southern California      
Related Party Transaction      
Initiation date June 2013    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Long Beach Storage Services Agreement      
Related Party Transaction      
Initiation date December 2013    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Amended Transportation Services Agreement (SoCal Pipelines)      
Related Party Transaction      
Initiation date December 2013    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Carson Coke Handling Services Agreement      
Related Party Transaction      
Initiation date December 2013    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Amended and Restated Long Beach Berth Access Use and Throughput Agreement      
Related Party Transaction      
Initiation date [2] December 2013    
Term (years) [2] 10 years    
Renewals, number (options) [2] 2    
Renewals, term (years) [2] 5 years    
Term of modification option (years) [2] 20 years    
Long Beach Berth Throughput Agreement      
Related Party Transaction      
Initiation date [2] December 2013    
Term (years) [2] 10 years    
Renewals, number (options) [2] 2    
Renewals, term (years) [2] 5 years    
Term of modification option (years) [2] 20 years    
Long Beach Pipeline Throughput Agreement      
Related Party Transaction      
Initiation date December 2013    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Terminalling Services Agreement - Nikiski      
Related Party Transaction      
Initiation date July 2014    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Terminalling Services Agreement - Anacortes      
Related Party Transaction      
Initiation date July 2014    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Terminalling Services Agreement - Martinez      
Related Party Transaction      
Initiation date July 2014    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Storage Services Agreement - Anacortes      
Related Party Transaction      
Initiation date July 2014    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Martinez Dedicated LPG Storage Agreement      
Related Party Transaction      
Initiation date July 2014    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Tesoro Alaska Pipeline Throughput Agreement      
Related Party Transaction      
Initiation date September 2014    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Carson II Storage Services Agreement      
Related Party Transaction      
Initiation date November 2015    
Term (years) 10 years    
Renewals, number (options) 2    
Renewals, term (years) 5 years    
Third Amended and Restated Omnibus Agreement      
Other Commitments      
Amendment date Nov. 12, 2015    
Omnibus agreement annual fee | $ $ 9    
Indemnification deductible | $ 1    
Anacortes Truck Rack Construction Agreement      
Other Commitments      
Operational services fee | $ 22    
Keep-Whole Commodity Fee Agreement      
Related Party Transaction      
Term (years)   5 years  
Secondment and Logistics Services Agreement      
Other Commitments      
Operational services fee | $ $ 2    
Los Angeles Terminal Assets Acquisition      
Other Commitments      
Years to identify conditions after the date of purchase (years) 5 years    
Los Angeles Logistics Assets Acquisition      
Other Commitments      
Years to identify conditions after the date of purchase (years) 10 years    
[1] Fixed minimum volumes remain in effect during routine turnarounds.
[2] Agreement gives Tesoro the option to renew for two five-year terms, or Tesoro may modify the term of the agreements to a twenty-year term by providing notice in accordance with each agreement.