XML 29 R46.htm IDEA: XBRL DOCUMENT v2.4.0.6

Accounting Policies Property, Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2012
Building and Pipeline Imprvements [Member]
Property, Plant and Equipment, Estimated Useful Lives	15-40
Pipelines and terminals [Member]
Property, Plant and Equipment, Estimated Useful Lives	15-40
Asset Retirement Obligation Costs [Member]
Property, Plant and Equipment, Estimated Useful Lives	15-50
Other Machinery and Equipment [Member]
Property, Plant and Equipment, Estimated Useful Lives	3-15

X

- Definition

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2155824

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration