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Net Income Per LP Unit (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 29, 2016 | Dec. 31, 2016 | Sep. 30, 2016 | [1] | Jun. 30, 2016 | [1] | Mar. 31, 2016 | [1] | Dec. 31, 2015 | [1] | Sep. 30, 2015 | [1] | Jun. 30, 2015 | [1] | Mar. 31, 2015 | [1] | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Earnings Per LP Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to Icahn Enterprises |  | $ (206) | [1] | $ (16) |  | $ (69) |  | $ (837) |  | $ (1,127) |  | $ (440) |  | $ 212 |  | $ 161 |  | $ (1,128) | $ (1,194) | $ (373)
Net loss attributable to Icahn Enterprises allocable to limited partners (98.01% allocation) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (1,106) | $ (1,170) | $ (366)
Basic loss per LP unit |  | $ (1.42) |  | $ (0.12) | [2] | $ (0.50) | [2] | $ (6.21) | [2] | $ (8.56) | [2] | $ (3.40) | [2] | $ 1.68 | [2] | $ 1.28 | [2] | $ (8.07) | $ (9.29) | $ (3.08)
Basic weighted average LP units outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,000,000 | 126,000,000 | 119,000,000
Diluted loss per LP unit |  | $ (1.42) |  | $ (0.12) | [2] | $ (0.50) | [2] | $ (6.21) | [2] | $ (8.56) | [2] | $ (3.40) | [2] | $ 1.68 | [2] | $ 1.27 | [2] | $ (8.07) | $ (9.29) | $ (3.08)
Diluted weighted average LP units outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,000,000 | 126,000,000 | 119,000,000
Distribution declared per unit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6.00 |  |
Units distributed to LP unitholders |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,574,723 |  |
Mr. Icahn and affiliates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings Per LP Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Affiliate ownership interest in Icahn Enterprises |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 89.80% |  |
ARL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings Per LP Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity issued to acquire additional interest in consolidated subsidiary (number of units) | 685,367 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | The comparability of our quarterly financial data is impacted by the acquisitions of certain businesses during both of the years December 31, 2016 and 2015 as discussed in Note 1, "Description of Business and Basis of Presentation."
[2] | Basic and diluted income (loss) per LP unit is computed separately for each quarter and therefore, the sum of such quarterly per LP unit amounts may differ from the total for the year.

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