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Net Income Per LP Unit Table (Details) (USD $) In Millions, except Share data, unless otherwise specified | 0 Months Ended | 3 Months Ended | 6 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended |  | 1 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 20, 2012 | Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011 | May 31, 2012 Depositary Units [Member] | Apr. 30, 2012 Depositary Units [Member] | Mar. 30, 2012 Depositary Units [Member] | Feb. 28, 2012 Depositary Units [Member] | Dec. 01, 2011 Depositary Units [Member] | Jan. 20, 2012 Depositary Units [Member] | Jun. 30, 2011 Depositary Units [Member] | Jun. 30, 2011 Depositary Units [Member] | Dec. 27, 2011 Depositary Units [Member] | Jan. 20, 2012 Principal Owners and Affiliates [Member] Depositary Units [Member]
Earnings Per LP Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to Icahn Enterprises |  | $ 240 | $ 289 | $ 289 | $ 529 |  |  |  |  |  |  |  |  |  |
Income attributable to Icahn Enterprises allocable to limited partners (98.01% allocation) |  | 235 | 283 | 283 | 518 |  |  |  |  |  |  |  |  |  |
Basic income per LP unit |  | 2.35 | 3.25 | 2.86 | 5.95 |  |  |  |  |  |  |  |  |  |
Basic weighted average LP units outstanding (in units) |  | 100,000,000 | 87,000,000 | 99,000,000 | 87,000,000 |  |  |  |  |  |  |  |  |  |
Dilutive effect of variable rate convertible notes, Income |  | 5 | 7 | 11 | 13 |  |  |  |  |  |  |  |  |  |
Dilutive effect of variable rate convertible notes, Units |  | 5,000,000 | 5,000,000 | 5,000,000 | 5,000,000 |  |  |  |  |  |  |  |  |  |
Diluted income per LP unit |  | 2.29 | 3.15 | 2.83 | 5.77 |  |  |  |  |  |  |  |  |  |
Diluted weighted average LP units outstanding (in units) |  | 105,000,000 | 92,000,000 | 104,000,000 | 92,000,000 |  |  |  |  |  |  |  |  |  |
Distribution made to limited partner depositary unitholders, cash and depositary unit distributions declared, per unit |  |  |  |  |  |  | $ 0.35 |  | $ 0.35 |  |  |  |  |  |
Distribution made to limited partner depositary unitholders, cash distributions declared, per unit |  |  |  |  |  |  | $ 0.10 |  | $ 0.10 |  |  |  |  |  |
Distribution made to limited partner depositary unitholders, depositary unit distributions declared, per unit |  |  |  |  |  |  | $ 0.25 |  | $ 0.25 |  |  |  |  |  |
Ratio of unit distributed per depositary unit |  |  |  |  |  |  | 0.005357 |  | 0.006269 |  |  |  |  |  |
Units issued as a unit distribution |  |  |  |  |  | 532,190 |  | 619,585 |  |  |  |  |  |  |
Impact of unit distributions on prior years' income per LP unit |  |  |  |  |  |  |  |  |  |  |  | $ 0.04 | $ 0.07 |  |
Intended proceeds from rights offering |  |  |  |  |  |  |  |  |  | 500 |  |  |  |  |
Rights received per depositary unit held |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.15881 |
Rights' subscription price per depositary unit |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 36.7933 |
Aggregate depositary units distributed in connection with rights offering |  |  |  |  |  |  |  |  |  |  | 13,590,238 |  |  |  | 12,995,584
Proceeds from rights offering |  |  |  |  |  |  |  |  |  |  | $ 500 |  |  |  |
Cancellation of treasury units (in units) | 1,137,200 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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