Acquisition Purchase Price Allocation Table (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	May 04, 2012 CVR Energy, Inc. [Member]		Sep. 30, 2012 Energy Segment [Member]	Dec. 31, 2011 Energy Segment [Member]	May 04, 2012 Energy Segment [Member] CVR Energy, Inc. [Member]
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	2,042	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.