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Ownership percentage by principal owner in related party

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Real estate tax credits used

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This item represents the deferred credit for an incentive or inducement received by a lessee from a lessor, in order to motivate the lessee to enter the lease agreement, which incentive or inducement is to be recognized as a reduction of rental expense over the lease term.

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Amount of increase (decrease) of consideration paid in advance for rent that provides economic benefits in future periods.

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The number of units or percentage investment held by one or more members or limited partners of the LLC or LP.

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The minimum amount the entity agreed to spend under the long-term purchase commitment.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of asset related to consideration paid in advance for rent that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

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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