Commitments and Contingencies (Details 2)
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6 Months Ended | 1 Months Ended | 39 Months Ended | 1 Months Ended | 25 Months Ended | 1 Months Ended | 6 Months Ended | 2 Months Ended | 6 Months Ended | 14 Months Ended | ||||||
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Jun. 30, 2014
USD ($)
|
Dec. 31, 2013
USD ($)
|
Jun. 30, 2014
Minimum
|
Apr. 30, 2011
Rainbow Pipeline Release
bbl
|
Jun. 30, 2014
Rainbow Pipeline Release
USD ($)
|
Feb. 26, 2013
Rainbow Pipeline Release
enforcementaction
|
Jul. 31, 2014
Rainbow Pipeline Release
Subsequent Event
CAD
|
Jun. 30, 2012
Rangeland Pipeline Release
bbl
|
Jun. 30, 2014
Rangeland Pipeline Release
USD ($)
|
Jul. 04, 2013
Rangeland Pipeline Release
enforcementaction
|
Jul. 31, 2014
Rangeland Pipeline Release
Subsequent Event
CAD
|
Feb. 28, 2013
Bay Springs Pipeline Release
bbl
|
Jun. 30, 2014
Bay Springs Pipeline Release
USD ($)
|
Jun. 30, 2013
Kemp River Pipeline Release
event
bbl
|
Jun. 30, 2014
Kemp River Pipeline Release
USD ($)
|
Jun. 30, 2014
Kemp River Pipeline Release
USD ($)
|
|
Environmental | ||||||||||||||||
Estimated undiscounted reserve for environmental liabilities | $ 92,000,000 | $ 93,000,000 | ||||||||||||||
Estimated undiscounted reserve for environmental liabilities, short-term | 13,000,000 | 11,000,000 | ||||||||||||||
Estimated undiscounted reserve for environmental liabilities, long-term | 79,000,000 | 82,000,000 | ||||||||||||||
Probable recoveries from insurers and from third parties under indemnification agreements recorded as a receivable | 8,000,000 | 10,000,000 | ||||||||||||||
Actual cash expenditures for environmental liabilities, period paid | 3 years | |||||||||||||||
Total estimated cost to clean up and remediate the site, before insurance recoveries | 15,000,000 | |||||||||||||||
Total cost to clean up and remediate the site, before insurance recoveries | 70,000,000 | 47,000,000 | 6,000,000 | |||||||||||||
Cost incurred, to date, to clean up and remediate the site, before insurance recoveries | 8,000,000 | |||||||||||||||
Estimated size of release (in barrels) | 28,000 | 3,000 | 120 | 700 | ||||||||||||
Settlement charges paid | 450,000 | 850,000 | ||||||||||||||
Charges, fines or penalties assessed | $ 0 | $ 0 | ||||||||||||||
Number of enforcement actions | 4 | 4 | ||||||||||||||
Number of events occurred | 2 |