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Acquisition Purchase Price Allocation Table (Details) (USD $) In Millions, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011 | May 04, 2012 CVR Energy, Inc. [Member] | Jun. 30, 2012 Energy Segment [Member] | Dec. 31, 2011 Energy Segment [Member] | May 04, 2012 Energy Segment [Member] CVR Energy, Inc. [Member]
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Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash paid for acquisition of CVR |  |  | $ 1,754 |  |  |  |
IEP Parties equity interest in CVR prior to acquisition of controlling interest |  |  | 378 | [1] |  |  |
Property, plant and equipment |  |  |  |  |  |  | 2,587
Intangible assets |  |  |  |  |  |  | 358
Debt |  |  |  |  |  |  | (912)
Deferred tax liabilities |  |  |  |  |  |  | (827)
Other assets and liabilities, net |  |  |  |  |  |  | 805
Fair value of identifiable net assets acquired |  |  |  |  |  |  | 2,011
Fair value of non-controlling interests |  |  |  |  |  |  | (773)
Goodwill | 2,023 | 1,127 |  |  | 894 | 0 | 894
Total purchase price |  |  | $ 2,132 |  |  |  | $ 2,132
[1] | Based on the Offer price of $30 per share of CVR common stock.

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