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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended	12 Months Ended
	Mar. 01, 2017	Feb. 27, 2017	Jan. 18, 2017	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Subsequent event
Subsequent Event [Line Items]
Distribution declared per LP unit		$ 1.50
New depositary units issued in connection with rights offering (number of units)				11,171,104
Proceeds from rights offering				$ 600
New 2022 Notes | Holding Company | Subsequent event
Subsequent Event [Line Items]
Debt face amount			$ 695
Interest rate, long-term debt			6.25%
2024 Notes | Holding Company | Subsequent event
Subsequent Event [Line Items]
Debt face amount			$ 500
Interest rate, long-term debt			6.75%
New 2022 and 2024 Notes | Holding Company | Subsequent event
Subsequent Event [Line Items]
Proceeds from issuance of debt			$ 1,192
Mr. Icahn and affiliates
Subsequent Event [Line Items]
Affiliate ownership interest in Icahn Enterprises					89.80%
Mr. Icahn and affiliates | Subsequent event
Subsequent Event [Line Items]
New depositary units issued in connection with rights offering (number of units)				10,525,105
Affiliate ownership interest in Icahn Enterprises	90.10%
Mr. Icahn and affiliates | Investment in funds
Subsequent Event [Line Items]
Amount of transaction with related party					$ 505	$ 276	$ 500
Mr. Icahn and affiliates | Investment in funds | Subsequent event
Subsequent Event [Line Items]
Amount of transaction with related party				$ 600

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