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Component: (Network and Table)
Network
2408402 - Disclosure - Asset Retirement Obligations (Details)
(http://www.valero.com/role/AssetRetirementObligationsDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Asset Retirement Obligation Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Asset Retirement Obligation Disclosure [Abstract]
 
 
 
Changes in Asset Retirement Obligations
 
 
 
Balance as of beginning of year
1,021,000  
975,000  
931,000  
Accretion expense
48,000  
46,000  
44,000  
Balance as of end of year
1,069,000  
 
1,021,000  
 
975,000