Commitments and Contingencies - Affiliate Pension Obligations (Details) $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($) sponsor	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Minimum ownership interest in CVR Energy by Mr. Icahn's affiliates (as a percent)	80.00%
Number of sponsors of pension plans | sponsor	2
Affiliate Pension Obligations
Loss Contingencies [Line Items]
Underfunded pension obligation, if ACF and Federal-Mogul plans were voluntarily terminated | $	$ 533.3	$ 589.2
Majority Shareholder
Loss Contingencies [Line Items]
Ownership percentage held by controlling stockholder	82.00%