Earnings Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended			1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 10, 2013	May 17, 2013	Feb. 19, 2013	May 31, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share
Net income attributable to CVR Energy stockholders					$ 183.4	$ 154.7	$ 348.4	$ 129.5
Weighted-average number of shares of common stock outstanding	86,800,000	86,800,000	86,800,000		86,800,000	86,800,000	86,800,000	86,800,000
Effect of dilutive securities:
Non-vested common stock (in shares)						1,600,000		1,700,000
Weighted-average number of shares of common stock outstanding assuming dilution					86,800,000	88,400,000	86,800,000	88,500,000
Basic earnings per share (in dollars per share)					$ 2.11	$ 1.78	$ 4.01	$ 1.49
Diluted earnings per share (in dollars per share)					$ 2.11	$ 1.75	$ 4.01	$ 1.46
Number of option exercised				22,900
Long-Term Incentive Plan
Antidilutive securities
Dilutive Awards Outstanding					0		0