XML 52 R42.htm IDEA: XBRL DOCUMENT
v3.19.2

Other Income (Loss), Net (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Other (Loss) Income, Net [Abstract] |
Other income (loss), net |
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
| (in millions)
Equity earnings from non-consolidated affiliates | $ | 4 |  |  | $ | 1 |  |  | $ | 8 |  |  | $ | 3 |
Gain (loss) on disposition of assets, net | 10 |  |  | (5 | ) |  | 6 |  |  | — |
Foreign currency transaction income (loss) | 1 |  |  | 4 |  |  | (1 | ) |  | 5 |
Non-service pension and other post-retirement benefits expense | — |  |  | (1 | ) |  | (1 | ) |  | (8 | )
Other | — |  |  | (8 | ) |  | 6 |  |  | (6 | )
| $ | 15 |  |  | $ | (9 | ) |  | $ | 18 |  |  | $ | (6 | )

X
- Definition Table for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. [Table Text Block] + References No definition available. + Details
Name: | iep_OtherIncomeLossNetTableTextBlock
Namespace Prefix: | iep_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other (Loss) Income, Net [Abstract] + References No definition available. + Details
Name: | iep_OtherLossIncomeNetAbstract
Namespace Prefix: | iep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration