Debt (Details) (USD $) | 12 Months Ended | 3 Months Ended | 0 Months Ended | 4 Months Ended | 3 Months Ended | | | | |
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Mar. 31, 2013 | Mar. 31, 2014 | Sep. 08, 2014 | Dec. 31, 2014 | Dec. 15, 2014 | Sep. 09, 2014 | Aug. 29, 2014 | Jun. 30, 2014 | Oct. 30, 2013 |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Term loan | $500,000,000 | | $500,000,000 | | | | | | $500,000,000 | | | | | | |
Debt Instrument, Face Amount | 2,300,000,000 | | | | | | | | 2,300,000,000 | | | | | | |
Additional Interest Due To Late Registration | 15,000,000 | | | | | | | | 15,000,000 | | | | | | |
Long-term Debt, Fair Value | 9,171,824,000 | | 9,395,577,000 | | | | | | 9,171,824,000 | | | | | | |
Loss on extinguishment of debt | 0 | | 5,304,000 | | 0 | | | | | | | | | | |
Percent of future net income allowable to increase Berry's restricted payments basket | 0.5 | | | | | | | | 0.5 | | | | | | |
Line of Credit | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | 4,500,000,000 | | | | | | | | 4,500,000,000 | | | | | | |
Line of Credit Facility, Current Borrowing Capacity | 4,000,000,000 | | | | | | | | 4,000,000,000 | | | | | | |
Percent Reduction of Borrowing Base Under Credit Facility | | | | | | | | | | | | | 25.00% | | |
Reduction of Borrowing Base Under Line of Credit | | | | | | | | | | | | 25,000,000 | 250,000,000 | | |
Redetermined Borrowing Base Under Line Of Credit | | | | | | | | | | | | 4,225,000,000 | 4,250,000,000 | 4,500,000,000 | |
Reduction of Maximum Borrowing Capacity Under Line of Credit | | | | | | | | | | | | 25,000,000 | 250,000,000 | | |
Senior Notes [Member] | Senior Notes Due November 2019 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Number of days for effective registration statement | | | | | | 400 days | | | | | | | | | |
Berry | Line of Credit | Credit Facility | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of Credit Facility, Interest Rate at Period End | | | 2.67% | | | | | | | | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | 1,400,000,000 | | | | | | | | 1,400,000,000 | | | | | | |
Line of Credit Facility, Current Borrowing Capacity | 1,200,000,000 | | | | | | | | 1,200,000,000 | | | | | | |
Line of Credit Facility, Remaining Borrowing Capacity | 1,000,000 | | | | | | | | 1,000,000 | | | | | | |
The percentage of properties that the company is required to maintain mortgages on (in hundredths) | 80.00% | | | | | | | | | | | | | | |
Berry | Line of Credit | Credit Facility | Minimum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of credit facility unused capacity commitment fee percentage (in hundredths) | | | 0.38% | | | | | | | | | | | | |
Berry | Line of Credit | Credit Facility | Maximum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of credit facility unused capacity commitment fee percentage (in hundredths) | | | 0.50% | | | | | | | | | | | | |
Berry | Senior Notes [Member] | Senior Notes Due 2014 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 205,000,000 | | | | | | | | 205,000,000 | | | | | | |
Extinguishment of Debt, Amount | | | | | | | 321,000 | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | | | | | | | 10.25% | | | | | | | | |
Berry | Senior Notes [Member] | Senior Notes Due 2020 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 300,000,000 | | | | | | | | 300,000,000 | | | | | | |
Extinguishment of Debt, Amount | | | | | | | 30,000 | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | 6.75% | | | | | | | | 6.75% | | | | | | |
Long-term Debt, Fair Value | 310,000,000 | | | | | | | | 310,000,000 | | | | | | |
Debt Instrument, Unamortized Premium | 10,000,000 | | | | | | | | 10,000,000 | | | | | | |
Berry | Senior Notes [Member] | Senior Notes Due 2022 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 599,000,000 | | | | | | | | 599,000,000 | | | | | | |
Extinguishment of Debt, Amount | | | | | | | 837,000 | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | 6.38% | | | | | | | | 6.38% | | | | | | |
Long-term Debt, Fair Value | 607,000,000 | | | | | | | | 607,000,000 | | | | | | |
Debt Instrument, Unamortized Premium | 7,000,000 | | | | | | | | 7,000,000 | | | | | | |
Linn Energy, LLC | Line of Credit | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | 4,500,000,000 | | | | | | | | 4,500,000,000 | | | | | | |
Line of Credit Facility, Current Borrowing Capacity | 4,000,000,000 | | | | | | | | 4,000,000,000 | | | | | | |
Line of Credit Facility, Remaining Borrowing Capacity | 2,200,000,000 | | | | | | | | 2,200,000,000 | | | | | | |
Outstanding letters of credit that reduce the credit facility availability | 5,000,000 | | | | | | | | 5,000,000 | | | | | | |
Linn Energy, LLC | Line of Credit | Credit Facility | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of Credit Facility, Interest Rate at Period End | | | 1.92% | | | | | | | | | | | | |
The percentage of properties that the company is required to maintain mortgages on (in hundredths) | 80.00% | | | | | | | | | | | | | | |
Line Of Credit Facility Collateral Coverage Ratio | 2.5 | | | | | | | | 2.5 | | | | | | |
Linn Energy, LLC | Line of Credit | Credit Facility | Minimum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of credit facility unused capacity commitment fee percentage (in hundredths) | | | 0.38% | | | | | | | | | | | | |
Linn Energy, LLC | Line of Credit | Credit Facility | Maximum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of credit facility unused capacity commitment fee percentage (in hundredths) | | | 0.50% | | | | | | | | | | | | |
Linn Energy, LLC | Loans Payable | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Term loan | 500,000,000 | [1] | 500,000,000 | [1] | | | | | 500,000,000 | [1] | | | | | |
Linn Energy, LLC | Loans Payable | Credit Facility | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Line of Credit Facility, Interest Rate at Period End | 2.66% | | 2.67% | | | | | | 2.66% | | | | | | |
The percentage of properties that the company is required to maintain mortgages on (in hundredths) | 80.00% | | | | | | | | | | | | | | |
Line Of Credit Facility Collateral Coverage Ratio | 2.5 | | | | | | | | 2.5 | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | | | | | | | | 0.00% | | | | | | | |
Debt Instrument, Increase in Basis Spread on Variable Rate | | | | | | | | 0.50% | | | | | | | |
Long-term Debt, Gross | | | | | | | | | | | | | | | 500,000,000 |
Bridge Loan | | | | | | | | | | | | | 1,000,000,000 | | |
Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due September 2021 and May 2019 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | | | | | 1,100,000,000 | | | |
Debt Issuance Cost | | | | | | | | | 22,000,000 | | | | | | |
Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due 2017 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 41,000,000 | | | | | | | | 41,000,000 | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | 11.75% | | | | | | | | 11.75% | | | | | | |
Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due 2018 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 14,000,000 | | | | | | | | 14,000,000 | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | 9.88% | | | | | | | | 9.88% | | | | | | |
Linn Energy, LLC | Senior Notes [Member] | Original Senior Notes | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Loss on extinguishment of debt | -5,000,000 | | | | | | | | | | | | | | |
Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due May 2019 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 750,000,000 | | | | | | | | 750,000,000 | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | 6.50% | | | | | | | | 6.50% | | | 6.50% | | | |
Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due November 2019 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 1,800,000,000 | | | | | | | | 1,800,000,000 | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | 6.25% | | | | | | | | 6.25% | | | | | | |
Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due 2020 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 1,300,000,000 | | | | | | | | 1,300,000,000 | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | 8.63% | | | | | | | | 8.63% | | | | | | |
Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due 2021 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 1,000,000,000 | | | | | | | | 1,000,000,000 | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | 7.75% | | | | | | | | 7.75% | | | | | | |
Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due September 2021 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 650,000,000 | | | | | | | | 650,000,000 | | | 650,000,000 | | | |
Debt Instrument, Interest Rate, Stated Percentage (in hundredths) | | | | | | | | | | | | 6.50% | | | |
Maximum Percentage of September 2021 Senior Notes Redeemable On or Before 2017 | | | | | | | | | 35.00% | | | | | | |
Issue Price of Debt Instruments as a Percentage of Face Amount | | | | | | | | | | | | 98.62% | | | |
Proceeds from Debt, Net of Issuance Costs | | | | | | | | | 628,000,000 | | | | | | |
Debt Instrument, Unamortized Discount | | | | | | | | | | | | 9,000,000 | | | |
Debt Issuance Cost | | | | | | | | | 13,000,000 | | | | | | |
Variable Interest Entity, Primary Beneficiary [Member] | Loans Payable | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Equity in Subsidiaries Pledged to Secure Debt | | | | | | | | | | | 100.00% | | | | |
The percentage of properties that the company is required to maintain mortgages on (in hundredths) | | | | | | | | | | | 80.00% | | | | |
Term loan | | | | | | | | | | | | | 1,300,000,000 | | |
2014 [Member] | Senior Notes [Member] | Senior Notes Due September 2021 and May 2019 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | | | | | 1,100,000,000 | | | |
2014 [Member] | Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due May 2019 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | 450,000,000 | | | | | | | | 450,000,000 | | | 450,000,000 | | | |
Issue Price of Debt Instruments as a Percentage of Face Amount | | | | | | | | | | | | 102.00% | | | |
Proceeds from Debt, Net of Issuance Costs | | | | | | | | | 450,000,000 | | | | | | |
Debt Instrument, Unamortized Premium | | | | | | | | | | | | 9,000,000 | | | |
Debt Issuance Cost | | | | | | | | | $9,000,000 | | | | | | |
London Interbank Offered Rate (LIBOR) [Member] | Berry | Line of Credit | Credit Facility | Minimum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.50% | | | | | | | | | | | | | | |
London Interbank Offered Rate (LIBOR) [Member] | Berry | Line of Credit | Credit Facility | Maximum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 2.50% | | | | | | | | | | | | | | |
London Interbank Offered Rate (LIBOR) [Member] | Linn Energy, LLC | Line of Credit | Credit Facility | Minimum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.50% | | | | | | | | | | | | | | |
London Interbank Offered Rate (LIBOR) [Member] | Linn Energy, LLC | Line of Credit | Credit Facility | Maximum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 2.50% | | | | | | | | | | | | | | |
London Interbank Offered Rate (LIBOR) [Member] | Linn Energy, LLC | Loans Payable | Credit Facility | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | | | | | | | | 5.00% | | | | | | | |
London Interbank Offered Rate (LIBOR) [Member] | Linn Energy, LLC | Loans Payable | Credit Facility | Maximum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 2.50% | | | | | | | | | | | | | | |
ABR [Member] | Berry | Line of Credit | Credit Facility | Minimum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 0.50% | | | | | | | | | | | | | | |
ABR [Member] | Berry | Line of Credit | Credit Facility | Maximum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.50% | | | | | | | | | | | | | | |
ABR [Member] | Linn Energy, LLC | Line of Credit | Credit Facility | Minimum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 0.50% | | | | | | | | | | | | | | |
ABR [Member] | Linn Energy, LLC | Line of Credit | Credit Facility | Maximum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.50% | | | | | | | | | | | | | | |
ABR [Member] | Linn Energy, LLC | Loans Payable | Credit Facility | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | | | | | | | | 4.00% | | | | | | | |
ABR [Member] | Linn Energy, LLC | Loans Payable | Credit Facility | Maximum [Member] | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.50% | | | | | | | | | | | | | | |
Debt Instrument, Redemption, Period One [Member] | Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due May 2019 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Redemption Price, Percentage | 103.25% | | | | | | | | | | | | | | |
Redemption Price of Senior Notes for Change of Control | 101.00% | | | | | | | | | | | | | | |
Debt Instrument, Redemption, Period One [Member] | Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due September 2021 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Redemption Price, Percentage | | | | | | | | | 106.50% | | | | | | |
Redemption Price of Senior Notes for Change of Control | 101.00% | | | | | | | | | | | | | | |
Debt Instrument, Redemption, Period Two [Member] | Linn Energy, LLC | Senior Notes [Member] | Senior Notes Due September 2021 | | | | | | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | | | | | | |
Debt Instrument, Redemption Price, Percentage | | | | | | | | | 103.25% | | | | | | |
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[1] | Variable interest rates of 2.66% and 2.67% at December 31, 2014 and December 31, 2013, respectively. |