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Debt Narrative - Senior Unsecured Notes - Icahn Enterprises (Details) (Senior unsecured notes [Member], USD $) |  | 0 Months Ended | 12 Months Ended |  |  |  | 0 Months Ended | 6 Months Ended |  | 12 Months Ended |  |  |  |  | 12 Months Ended |
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Dec. 31, 2012 | Jan. 15, 2010 Initial Notes [Member] | Dec. 31, 2012 Initial Notes [Member] | Nov. 12, 2010 2016 Additional Notes [Member] | Jan. 15, 2010 7.75% senior unsecured notes due 2016 [Member] | Jan. 15, 2010 8% senior unsecured notes due 2018 [Member] | Nov. 12, 2010 2018 Additional Notes [Member] | Nov. 12, 2010 2010 Additional Notes [Member] | Jul. 12, 2012 2012 Additional Notes [Member] | Jul. 02, 2012 2012 Additional Notes [Member] | Dec. 31, 2012 Variable Rate Senior Unsecured Convertible Notes [Member] | Dec. 31, 2011 Variable Rate Senior Unsecured Convertible Notes [Member] | Dec. 31, 2010 Variable Rate Senior Unsecured Convertible Notes [Member] | Mar. 30, 2012 Variable Rate Senior Unsecured Convertible Notes [Member] | Oct. 05, 2008 Variable Rate Senior Unsecured Convertible Notes [Member] | Apr. 30, 2007 Variable Rate Senior Unsecured Convertible Notes [Member] | Apr. 05, 2007 Variable Rate Senior Unsecured Convertible Notes [Member] | Dec. 31, 2012 Debt repurchase date range, from January 15, 2013 to January 14, 2014 [Member] 7.75% senior unsecured notes due 2016 [Member] | Dec. 31, 2012 Debt repurchase date range, from January 15, 2014 to January 14, 2015 [Member] 7.75% senior unsecured notes due 2016 [Member] | Dec. 31, 2012 Debt repurchase date range, from January 15, 2014 to January 14, 2015 [Member] 8% senior unsecured notes due 2018 [Member] | Dec. 31, 2012 Debt repurchase date range, on or after January 15, 2015 [Member] 7.75% senior unsecured notes due 2016 [Member] | Dec. 31, 2012 Debt repurchase date range, from January 15, 2015 to January 14, 2016 [Member] 8% senior unsecured notes due 2018 [Member] | Dec. 31, 2012 Debt repurchase date range, on or after January 15, 2016 [Member] 8% senior unsecured notes due 2018 [Member] | Dec. 31, 2012 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] 7.75% senior unsecured notes due 2016 [Member] | Dec. 31, 2012 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] 8% senior unsecured notes due 2018 [Member] | Dec. 31, 2012 Debt repurchase percentage of principal amount authorized if change of control [Member] Initial Notes [Member] | Apr. 05, 2007 Minimum [Member] Variable Rate Senior Unsecured Convertible Notes [Member] | Apr. 05, 2007 Maximum [Member] Variable Rate Senior Unsecured Convertible Notes [Member]
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |  |  |  |
Term Loan Facility |  |  |  | $ 200,000,000 | $ 850,000,000 | $ 1,150,000,000 | $ 300,000,000 |  |  | $ 1,000,000,000 |  |  |  |  |  | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Interest rate, long-term debt |  |  |  |  | 7.75% | 8.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from sale of senior unsecured notes |  | 1,987,000,000 |  |  |  |  |  | 512,000,000 | 1,030,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption percentage of principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103.875% | 101.938% | 104.00% | 100.00% | 102.00% | 100.00% | 107.75% | 108.00% | 101.00% |  |
Redemption percentage of aggregate principal amount authorized to be redeemed at higher percenatge of principal amount |  |  | 35.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of aggregate principal amount required to remain outstanding if debt redeemed at higher percenatge of principal amount |  |  | 65.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable interest rate |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00% | 5.50%
Variable rate notes conversion price per depositary unit |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 105.00 |  | $ 132.595 |  |  |  |  |  |  |  |  |  |  |
Variable rate notes, principal amount converted per depositary unit |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000 | 1,000 |  | 1,000 |  |  |  |  |  |  |  |  |  |  |
Variable rate notes, depositary unit, maximum dividends, per share, declared, before matching distribution to variable rate noteholders required |  |  |  |  |  |  |  |  |  |  | $ 0.10 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable rate notes, distribution amount |  |  |  |  |  |  |  |  |  |  | 0 | 3,000,000 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional indebtedness allowed per debt covenants | $ 1,300,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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