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Debt - Holding Company Debt (Details) - USD ($) $ in Millions |  | 1 Months Ended | 2 Months Ended | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 16, 2024 | Dec. 31, 2024 | Apr. 30, 2024 | Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2024 | Aug. 31, 2024 | Jul. 13, 2024 | May 31, 2024 | Feb. 29, 2024 | Sep. 30, 2023 | Oct. 31, 2020
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ 6,809 |  | $ 7,207 | $ 7,207 | $ 6,809 | $ 7,207 |  |  |  |  |  |  |  |
Total cash paid |  |  |  |  |  | 168 |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 8 | 13 | $ 2 |  |  |  |  |  |  |
Repayments of Holding Company senior notes |  |  |  |  |  | (1,229) | (1,159) | (500) |  |  |  |  |  |  |
Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | 4,699 |  | 4,847 | 4,847 | 4,699 | 4,847 |  |  |  |  |  |  |  |
Aggregate principal amount |  |  | $ 177 |  |  |  |  |  |  |  |  |  |  |  |
Total cash paid |  |  | 168 |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 8 | 13 | $ (2) |  |  |  |  |  |  |
Extinguishment of debt, amount |  |  | $ 177 |  | 57 |  |  |  |  |  |  |  |  |  |
Repurchase amount |  |  |  | 92 | 92 |  | 92 |  |  |  |  |  |  |  |
Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | 1,919 |  | 2,185 | 2,185 | 1,919 | 2,185 |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | (1) |  |  |  |  |  |  |  |  |
Energy | Revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, incremental borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 125 |
Line of credit Facility maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | 275 |
Revolving credit facilities |  | 277 |  | 288 | 288 | 277 | 288 |  |  |  |  |  |  |  |
Energy | Letter of Credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  | 60 |
Energy | Letter of Credit | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  | 100 |
Energy | Swingline Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit Facility maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30 |
Automotive Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | 31 |  | 33 | 33 | 31 | 33 |  |  |  |  |  |  |  |
Food Packaging Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | 144 |  | 133 | 133 | 144 | 133 |  |  |  |  |  |  |  |
Real Estate Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | 1 |  | 1 | 1 | 1 | 1 |  |  |  |  |  |  |  |
Home Fashion Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | 15 |  | 8 | 8 | 15 | 8 |  |  |  |  |  |  |  |
Reporting Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ 2,110 |  | $ 2,360 | $ 2,360 | $ 2,110 | $ 2,360 |  |  |  |  |  |  |  |
5.25% senior unsecured notes due 2025 | Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  |  |  | 5.25% | 5.25% |  | 5.25% |  |  |  |  |  | 5.25% |  |
Debt face amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 600 |  |
6.375% senior unsecured notes due 2025 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  | $ 749 | $ 749 |  | $ 749 |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 6.375% |  | 6.375% | 6.375% | 6.375% | 6.375% |  |  |  | 6.375% |  |  |  |
6.250% senior unsecured notes due 2026 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ 719 |  | $ 1,238 | $ 1,238 | $ 719 | $ 1,238 |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) | 6.25% | 6.25% | 6.25% | 6.25% | 6.25% | 6.25% | 6.25% |  | 6.25% |  |  |  |  |  |
Debt face amount |  |  | $ 12 | $ 12 | $ 12 |  | $ 12 |  |  |  |  |  |  |  |
Aggregate principal amount |  |  | $ 52 |  |  |  |  |  |  |  |  |  |  |  |
Debt redemption |  | $ 21 |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Holding Company senior notes | $ 500 |  |  |  |  |  |  |  |  |  |  |  |  |  |
5.250% senior unsecured notes due 2027 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ 1,384 |  | $ 1,454 | $ 1,454 | $ 1,384 | $ 1,454 |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 5.25% | 5.25% | 5.25% | 5.25% | 5.25% | 5.25% |  | 5.25% |  |  |  |  |  |
Debt face amount |  |  | $ 5 | $ 5 | $ 5 |  | $ 5 |  |  |  |  |  |  |  |
Aggregate principal amount |  |  | $ 73 |  |  |  |  |  |  |  |  |  |  |  |
4.375% senior unsecured notes due 2029 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ 656 |  | $ 708 | $ 708 | $ 656 | $ 708 |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 4.375% | 4.375% | 4.375% | 4.375% | 4.375% | 4.375% |  | 4.375% |  |  |  |  |  |
Aggregate principal amount |  |  | $ 52 |  |  |  |  |  |  |  |  |  |  |  |
9.750% senior unsecured notes due 2029 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ 698 |  | $ 698 | $ 698 | $ 698 | $ 698 |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 9.75% |  | 9.75% | 9.75% | 9.75% | 9.75% |  |  | 9.75% |  |  |  |  |
Debt face amount |  |  |  | $ 700 | $ 700 |  | $ 700 |  |  | $ 700 |  |  |  |  |
Unregistered 9.750% senior notes due 2029 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  |  |  |  |  |  |  |  |  | 9.75% |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  |  |  | $ 700 |  |  |  |  |
10.000% senior notes due 2029 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ 495 |  |  |  | $ 495 |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 10.00% |  | 10.00% | 10.00% | 10.00% | 10.00% |  | 10.00% |  |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  |  | $ 500 |  |  |  |  |  |
9.000% senior unsecured notes due 2030 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  | $ 747 |  |  |  | $ 747 |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 9.00% |  | 9.00% | 9.00% | 9.00% | 9.00% |  | 9.00% | 9.00% |  | 9.00% |  |  |
Debt face amount |  |  |  |  |  |  |  |  |  | $ 750 |  | $ 750 |  |  |
A8.50 Senior Unsecured Notes Due 2029 | Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 8.50% |  | 8.50% | 8.50% | 8.50% | 8.50% |  |  |  |  |  |  |  |
Debt face amount |  | $ 600 |  | $ 600 | $ 600 | $ 600 | $ 600 |  |  |  |  |  |  |  |
CVR 2028 Notes | Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 5.75% |  |  |  | 5.75% |  |  |  |  |  |  |  |  |
Debt face amount |  | $ 400 |  |  |  | $ 400 |  |  |  |  |  |  |  |  |
Cvr Partner 2028 Notes [Member] | Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 6.125% |  |  |  | 6.125% |  |  |  |  |  |  |  |  |
Debt face amount |  | $ 550 |  |  |  | $ 550 |  |  |  |  |  |  |  |  |
Unregistered 9.000% senior notes due 2030 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  |  |  | $ 750 |  |  |  |  |
Senior secured term loan | Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt face amount |  | 325 |  |  |  | 325 |  |  |  |  |  |  |  |  |
Variable net proceeds |  |  |  |  |  | $ 318 |  |  |  |  |  |  |  |  |
Senior secured term loan | Energy | SOFR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable interest rate |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |
Senior secured term loan | Energy | Base rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable interest rate |  |  |  |  |  | 3.00% |  |  |  |  |  |  |  |  |
4.750% senior unsecured notes due 2024 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  |  |  | 4.75% | 4.75% |  | 4.75% |  |  |  |  |  |  |  |
Debt face amount |  |  |  | $ 35 | $ 35 |  | $ 35 |  |  |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  | $ 376 |  |  |  |  |  |  |  |  |  |  |
4.375% senior unsecured notes due 2029 | Holding Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  |  |  | 4.375% | 4.375% |  | 4.375% |  |  |  |  |  |  |  |
Debt face amount |  |  |  | $ 40 | $ 40 |  | $ 40 |  |  |  |  |  |  |  |
Repurchase amount |  | $ 84 |  |  |  | $ 84 |  |  |  |  |  |  |  |  |
Viskase credit facility | Food Packaging Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt instrument (in percent) |  | 7.49% |  | 7.40% | 7.40% | 7.49% | 7.40% |  |  |  |  |  |  |  |
Term loan | Revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 134
Line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10
Term loan | Food Packaging Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facilities |  | $ 25 |  | $ 30 | $ 30 | $ 25 | $ 30 |  |  |  |  |  |  |  |
CVR Refining Credit Facility | Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit outstanding amount |  | $ 24 |  | $ 26 | $ 26 | $ 24 | $ 26 |  |  |  |  |  |  |  |

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