Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of minimum required payments for CVR's operating lease agreements and unconditional purchase obligations

The minimum required payments for CVR's operating lease agreements and unconditional purchase obligations are as follows:



Year Ending December 31,	Operating Leases		Unconditional Purchase Obligations⁽¹⁾
	(in millions)
2018	$	7.4	$	165.0
2019	6.5		124.3
2020	5.9		100.6
2021	5.3		89.8
2022	4.8		84.7
Thereafter	2.4		542.7
	$	32.3	$	1,107.1

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(1)

This amount includes approximately $698.6 million payable ratably over 13 years pursuant to petroleum transportation service agreements between CRRM and each of TransCanada Keystone Pipeline Limited Partnership and TransCanada Keystone Pipeline, LP (together "TransCanada"). The purchase obligation reflects the exchange rate between the Canadian dollar and the U.S. dollar as of December 31, 2017, where applicable. Under the agreements, CRRM receives transportation of at least 25,000 barrels per day of crude oil with a delivery point at Cushing, Oklahoma for a term of 20 years on TransCanada's Keystone pipeline system.

Schedule of accrual for environmental loss contingencies

The estimated future payments for these required obligations are as follows:



Year Ending December 31,	Amount
	(in millions)
2018	$	2.9
2019	1.1
2020	—
2021	—
2022	—
Thereafter	—
Undiscounted total	4.0
Less amounts representing interest at 1.98%	0.1
Accrued environmental liabilities at December 31, 2017	$	3.9