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Acquisition Narrative (Details) (USD $) In Millions, except Share data, unless otherwise specified | 0 Months Ended | 3 Months Ended | 6 Months Ended |  | 6 Months Ended | 12 Months Ended | 3 Months Ended | 6 Months Ended |  | 0 Months Ended | 6 Months Ended | 0 Months Ended |  | 0 Months Ended | 6 Months Ended |  | 0 Months Ended | 4 Months Ended
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May 24, 2012 | Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011 | Dec. 31, 2011 | Jun. 30, 2012 Principal Owners and Affiliates [Member] | Dec. 31, 2011 Principal Owners and Affiliates [Member] | Jun. 30, 2012 Energy Segment [Member] | Jun. 30, 2012 Energy Segment [Member] | Dec. 31, 2011 Energy Segment [Member] | May 04, 2012 CVR Energy, Inc. [Member] cash_contingent_payments | Jun. 30, 2012 CVR Energy, Inc. [Member] | May 04, 2012 CVR Energy, Inc. [Member] Maximum [Member] | May 04, 2012 CVR Energy, Inc. [Member] Energy Segment [Member] | May 04, 2012 CVR Energy, Inc. [Member] Energy Segment [Member] Petroleum [Member] | May 04, 2012 CVR Energy, Inc. [Member] Energy Segment [Member] Nitrogen Fertilizer [Member] | May 04, 2012 CVR Partners, LP [Member] Energy Segment [Member] | May 07, 2012 IEP Energy [Member] Principal Owners and Affiliates [Member] | Jun. 30, 2012 IEP Energy [Member] Principal Owners and Affiliates [Member] | Jun. 30, 2012 IEP Energy [Member] CVR Energy, Inc. [Member] | May 04, 2012 IEP Energy [Member] CVR Energy, Inc. [Member] | May 04, 2012 IEP Parties [Member] CVR Energy, Inc. [Member] | May 03, 2012 CVR Energy, Inc. [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share price, CVR acquisition (in ones) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30 |  |  |  |  |  |  |  |  |  |  |  |
Number of cash contingent payment rights (in ones) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Common shares of CVR tendered |  |  |  |  |  |  |  |  |  |  |  |  |  | 48,112,317 |  |  |  |  |  |  |  |  |  |  |  |
Percentage of CVR shares tendered |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 55.00% |  |
Percentage of equity ownership in subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 70.00% |  |  | 82.00% |  | 70.00% |
Affiliate ownership interest |  |  |  |  |  |  | 93.00% | 92.60% |  |  |  |  |  |  |  |  |  |  |  |  | 6.40% | 6.40% |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1 |  |  |  |  |  |  |  |  |  |  |
Acquisition-date fair value of equity interest in CVR held by IEP Energy immediately before the acquisition date |  |  |  |  |  |  |  |  |  |  |  |  |  | 378 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (1) |  |  |  |  |  |  |  |  |  |  |  |
Solicitation period from third party to acquire | 60 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
CCP valuation assumption, expected life of CCP |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 months 18 days |  |  |  |  |  |  |  |  |  |  |
Net gain from investment activities |  | 278 | 590 | 336 | 1,207 |  |  |  | 0 | [1] | 0 | [1] |  |  |  |  |  |  |  |  |  |  |  |  |  | 102
Goodwill |  | 2,023 |  | 2,023 |  | 1,127 |  |  | 894 |  | 894 |  | 0 |  |  |  | 894 | 652 | 242 |  |  |  |  |  |  |
Goodwill recognized, expected to be tax deductible |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |
EBITDA multiple used to calculate fair value of non-controlling interest in CVR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.5 |  |  |  |  |  |  |  |  |  |
[1] | We consolidated CVR effective May 4, 2012.

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- Definition This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 22 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 + Details
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- Definition Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -Clause 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph l -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 34 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 72 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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