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Commitments and Contingencies Commitments and Contingencies (Details) - USD ($) $ in Millions |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jan. 06, 2016 | Oct. 25, 2014 | Jan. 31, 2014 | Jan. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2010
Loss Contingencies [Line Items] |  |  |  |  |  |  |
2016 |  |  |  |  | $ 104.0 |  |
2017 |  |  |  |  | 88.0 |  |
2018 |  |  |  |  | 82.0 |  |
2019 |  |  |  |  | 55.0 |  |
2020 |  |  |  |  | 48.0 |  |
Thereafter |  |  |  |  | 156.0 |  |
Total future minimum lease payments under operating leases |  |  |  |  | 533.0 |  |
Automotive Segment [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Accrual for Environmental Loss Contingencies |  |  |  |  | 14.0 | $ 15.0 |
Gaming Segment [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Tax refund as result of Trop AC tax appeal settlement |  |  | $ 32.0 | $ 50.0 |  |  |
Amount of prepaid rent payments |  |  |  |  |  |  | $ 14.0
Tax to be paid as result of Trop AC tax appeal settlement |  |  |  |  | 2.0 |  |
Real estate tax credits used |  |  |  |  | 16.0 |  |
Professional Fees |  |  |  |  | 4.0 |  |
PSC Metals [Member] | Metals Segment [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Accrual for Environmental Loss Contingencies |  |  |  |  | 29.0 | 28.0 |
WPH [Member] | Home Fashion Segment [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Accrual for Environmental Loss Contingencies |  |  |  |  |  | 1.0 |
Federal-Mogul [Member] | Automotive Segment [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Site Contingency, Loss Exposure in Excess of Accrual, Best Estimate |  |  |  |  | 44.0 |  |
Asset Retirement Obligation |  |  |  |  | $ 16.0 | $ 24.0 |
ARI [Member] | Railcar Segment [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation claim gain amount |  | $ 25.0 |  |  |  |  |
Litigation counterclaim amount |  | $ 10.0 |  |  |  |  |
Principal Owners and Affiliates [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Affiliate ownership interest |  |  |  |  | 89.00% |  |
Principal Owners and Affiliates [Member] | Icahn Enterprises G.P. [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Affiliate ownership in parent company general partner |  |  |  |  |  | 100.00% |
ACF [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Funded status of the plan |  |  |  |  | $ (589.0) | $ (474.0) |
Starfire Holding Corporation [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Ownership Percentage by Principal Owner |  |  |  |  | 99.40% |  |
Subsidiary Indemnity Agreement, Pension Funding Contingencies As A Result of Being In The Controlled Group, Distribution Limitation, Net Worth Floor |  |  |  |  | $ 250.0 |  |
Land lease [Member] | Gaming Segment [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Long-term Purchase Commitment, Amount | $ 50.0 |  |  |  |  |  |
Prepaid Rent | 25.0 |  |  |  |  |  |
Incentive from Lessor | 20.0 |  |  |  |  |  |
Amount of prepaid rent payments | 12.5 |  |  |  |  |  |
Increase (Decrease) in Prepaid Rent | $ 12.5 |  |  |  |  |  |

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