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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2021
Income Tax Disclosure [Abstract] |
Schedule of difference between the book basis and the tax basis of our net asset | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Icahn Enterprises
​ | ​ | December 31,
​ |  | 2021 |  | 2020
​ |  | ​ | (in millions)
Book basis of net assets | ​ | $ | 3,544 | ​ | $ | 3,383
Book/tax basis difference | ​ |  | (1,362) | ​ |  | (775)
Tax basis of net assets | ​ | $ | 2,182 | ​ | $ | 2,608
Schedule of income (loss) from continuing operations before income tax expense (benefit) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2021 |  | 2020 |  | 2019
​ | ​ | (in millions)
Domestic | ​ | $ | (576) | ​ | $ | (2,586) | ​ | $ | (1,765)
International | ​ |  | (2) | ​ |  | 2 | ​ |  | 26
​ | ​ | $ | (578) | ​ | $ | (2,584) | ​ | $ | (1,739)
Schedule of Income tax benefit (expense) attributable to continuing operations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2021 |  | 2020 |  | 2019
​ | ​ | (in millions)
Current: | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Domestic | ​ | $ | (87) | ​ | $ | 69 | ​ | $ | (106)
International | ​ |  | (3) | ​ |  | (2) | ​ |  | (3)
Total current | ​ |  | (90) | ​ |  | 67 | ​ |  | (109)
Deferred: | ​ |  |  | ​ |  |  | ​ |  |
Domestic | ​ |  | 166 | ​ |  | 51 | ​ |  | 87
International | ​ |  | 2 | ​ |  | (2) | ​ |  | 2
Total deferred | ​ |  | 168 | ​ |  | 49 | ​ |  | 89
​ | ​ | $ | 78 | ​ | $ | 116 | ​ | $ | (20)
Schedule of reconciliation of the income tax benefit (expense) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2021 |  | 2020 |  | 2019
​ | ​ | (in millions)
Income tax benefit at U.S. statutory rate | ​ | $ | 121 | ​ | $ | 543 | ​ | $ | 365
Tax effect from: | ​ |  |  | ​ |  |  | ​ |  |
Valuation allowance | ​ |  | 13 | ​ |  | (243) | ​ |  | (63)
Non-controlling interest | ​ |  | 10 | ​ |  | (6) | ​ |  | (4)
Tax rate changes | ​ |  | 13 | ​ |  | — | ​ |  | —
Dividends received | ​ |  | (24) | ​ |  | — | ​ |  | —
Income not subject to taxation | ​ |  | (64) | ​ |  | (287) | ​ |  | (314)
State taxes | ​ |  | — | ​ |  | 103 | ​ |  | —
Other | ​ |  | 9 | ​ |  | 6 | ​ |  | (4)
Income tax benefit (expense) | ​ | $ | 78 | ​ | $ | 116 | ​ | $ | (20)
Schedule of deferred tax assets (liabilities) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2021 |  | 2020
​ | ​ | (in millions)
Deferred tax assets: |  | ​ |  | ​ | ​ |
Property, plant and equipment | ​ | $ | 1 | ​ | $ | 17
Net operating loss | ​ |  | 955 | ​ |  | 996
Tax credits | ​ |  | 54 | ​ |  | 60
Capital loss | ​ |  | 342 | ​ |  | 358
Leases | ​ |  | 118 | ​ |  | 141
Other | ​ |  | 120 | ​ |  | 119
Total deferred tax assets | ​ |  | 1,590 | ​ |  | 1,691
Less: Valuation allowance | ​ |  | (971) | ​ |  | (1,026)
Net deferred tax assets | ​ | $ | 619 | ​ | $ | 665
​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred tax liabilities: | ​ |  |  | ​ |  |
Property, plant and equipment | ​ | $ | (118) | ​ | $ | (121)
Intangible assets | ​ |  | (80) | ​ |  | (84)
Investment in partnerships | ​ |  | (496) | ​ |  | (657)
Investment in U.S. subsidiaries | ​ |  | (184) | ​ |  | (184)
Leases | ​ |  | (113) | ​ |  | (135)
Other | ​ |  | (9) | ​ |  | (42)
Total deferred tax liabilities | ​ |  | (1,000) | ​ |  | (1,223)
​ | ​ | $ | (381) | ​ | $ | (558)
Schedule of unrecognized tax benefits | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2021 |  | 2020 |  | 2019
​ | ​ | (in millions)
Balance at January 1 | ​ | $ | 35 | ​ | $ | 33 | ​ | $ | 34
Addition based on tax positions related to the current year | ​ |  | — | ​ |  | 1 | ​ |  | 2
Increase for tax positions of prior years | ​ |  | — | ​ |  | 6 | ​ |  | —
Decrease for tax positions of prior years | ​ |  | (1) | ​ |  | (2) | ​ |  | —
Decrease for statute of limitation expiration | ​ |  | (1) | ​ |  | (3) | ​ |  | (3)
Balance at December 31 | ​ | $ | 33 | ​ | $ | 35 | ​ | $ | 33

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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