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Long-Term Debt and Finance Lease Obligations - CVR Energy (Details) - USD ($) $ in Millions				6 Months Ended
	Feb. 17, 2026	Feb. 13, 2026	Feb. 12, 2026	Jun. 30, 2026	Jun. 30, 2025
Line of Credit Facility [Line Items]
Proceeds from issuance of Senior Notes				$ 1,000	$ 0
Loss on extinguishment of debt				32	0
Repayments of senior debt				817	$ 0
2031 Notes and 2034 Notes \| Senior Notes
Line of Credit Facility [Line Items]
Aggregate principal amount of private offering			$ 1,000
Proceeds from issuance of Senior Notes			993
Debt issuance costs			13
7.500% Senior Notes, due February 2031 \| Senior Notes
Line of Credit Facility [Line Items]
Aggregate principal amount of private offering			$ 600
Stated interest rate			7.50%
7.875% Senior Notes, due February 2034 \| Senior Notes
Line of Credit Facility [Line Items]
Aggregate principal amount of private offering			$ 400
Stated interest rate			7.875%
8.500% Senior Notes, due January 2029 \| Senior Notes
Line of Credit Facility [Line Items]
Stated interest rate		8.50%
Redemption prices as percentage of principal amount		104.25%
Loss on extinguishment of debt				$ 28
5.750% Senior Notes, due February 2028 \| Senior Notes
Line of Credit Facility [Line Items]
Stated interest rate	5.75%
Repayments of senior debt	$ 217