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Debt Narrative (Details) € in Millions, $ in Millions			3 Months Ended
	Mar. 30, 2017 USD ($)	Jan. 18, 2017 USD ($)	Mar. 31, 2017 USD ($)	Mar. 30, 2017 EUR (€)
Automotive Segment
Debt Instrument [Line Items]
Loss on extinguishment of debt			$ (2)
6.25% senior unsecured notes due 2022 - Icahn Enterprises/Icahn Enterprises Holdings | Holding Company
Debt Instrument [Line Items]
Debt face amount		$ 695
Interest rate on debt		6.25%
6.75% senior unsecured notes due 2024 - Icahn Enterprises/Icahn Enterprises Holdings | Holding Company
Debt Instrument [Line Items]
Debt face amount		$ 500
Interest rate on debt		6.75%
New 2022 and 2024 Notes | Holding Company
Debt Instrument [Line Items]
Proceeds from issuance of debt		$ 1,190
Federal-Mogul 2022 Notes | Automotive Segment
Debt Instrument [Line Items]
Debt face amount | €				€ 415
Interest rate on debt				4.875%
Federal-Mogul 2024 Notes | Automotive Segment
Debt Instrument [Line Items]
Debt face amount | €				€ 300
Federal-Mogul 2022 and 2024 Notes | Automotive Segment
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 776

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Face (par) amount of debt instrument at time of issuance.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
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