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Subsequent Events (Details) (USD $) In Millions, except Per Share data, unless otherwise specified		0 Months Ended					0 Months Ended	5 Months Ended			0 Months Ended						9 Months Ended
	Oct. 17, 2012 Tender Offer for shares of Netflix [Member]	Jul. 31, 2012 Depositary Units [Member]	Apr. 30, 2012 Depositary Units [Member]	Feb. 28, 2012 Depositary Units [Member]	Nov. 02, 2012 Depositary Units [Member] Dividend Declared [Member]	Oct. 31, 2012 Depositary Units [Member] Dividend Declared [Member]	Oct. 23, 2012 Energy Segment [Member]	Sep. 30, 2012 Energy Segment [Member]	Sep. 30, 2012 Wynnewood, Oklahoma [Member] Energy Segment [Member]	Sep. 30, 2012 CVR Partners, LP [Member] Energy Segment [Member]	Oct. 23, 2012 Senior unsecured notes [Member] 2022 Notes [Member] Energy Segment [Member] Issuance of Debt [Member]	Oct. 23, 2012 Repayment of Debt [Member] Energy Segment [Member]	Oct. 23, 2012 Payment of accrued interest [Member] Energy Segment [Member]	Oct. 23, 2012 Payment of premium [Member] Energy Segment [Member]	Oct. 23, 2012 repyament of additional debt [Member] Energy Segment [Member]	Apr. 06, 2010 Term Loan [Member] CVR Issuers [Member] CVR First Lien Notes [Member] Energy Segment [Member]	Sep. 30, 2012 Debt Instrument, Repurchase Date Range, from November 1, 2017 to September 30, 2018 [Member] [Member] Senior unsecured notes [Member] 2022 Notes [Member] Energy Segment [Member]	Sep. 30, 2012 Debt Instrument, Repurchase Date Range, from November 1, 2018 to September 30, 2019 [Member] [Member] Senior unsecured notes [Member] 2022 Notes [Member] Energy Segment [Member]	Sep. 30, 2012 Debt Instrument, Repurchase Date Range, from November 1, 2019 to September 30, 2020 [Member] [Member] Senior unsecured notes [Member] 2022 Notes [Member] Energy Segment [Member]	Sep. 30, 2012 Debt Instrument, Repurchase Date Range, from November 1, 2020 and thereafter [Member] [Member] Senior unsecured notes [Member] 2022 Notes [Member] Energy Segment [Member]	Sep. 30, 2012 Debt repurchase date range, from January 15, 2014 to January 14, 2015 [Member] Senior unsecured notes [Member] 2022 Notes [Member] Energy Segment [Member]
Subsequent Event [Line Items]
Redemtion percentage of principal amount																	103.25%	102.167%	101.083%	100.00%	106.50%
Distribution made to limited partner depositary unitholders, cash and depositary unit distributions declared, per unit		$ 0.35	$ 0.35	$ 0.35	$ 0.35
Distribution made to limited partner depositary unitholders, cash distributions declared, per unit		$ 0.10	$ 0.10	$ 0.10	$ 0.10
Distribution made to limited partner depositary unitholders, depositary unit distributions declared, per unit		$ 0.25	$ 0.25	$ 0.25	$ 0.25
Ratio of unit distributed per depositary unit		0.006277	0.005357	0.006269		0.005978
Expected future cost of planned maintenance									$ 100	$ 5
Planned major maintenance								13
Tender offer, per share price	$ 32.50
Term Loan Facility											500					275
Interest rate, long-term debt											6.50%					9.00%
Gross proceeds from sale of senior unsecured notes											493
Use of portion of debt proceeds							$ 348					$ 323	$ 2	$ 23	$ 124

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