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Long-Term Debt - CEI Term Loans and CEI Revolving Credit Facility (Narrative) (Details) |  |  |  | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Feb. 06, 2024 USD ($) | Feb. 06, 2023 USD ($) stepdown | Oct. 05, 2022 USD ($) stepdown | Mar. 31, 2024 USD ($) | Mar. 31, 2023 USD ($) | Jul. 20, 2020 USD ($)
Long-term debt |  |  |  |  |  |
Interest rate |  |  |  | 4.30% |  |
Loss on extinguishment of debt |  |  |  | $ (48,000,000) | $ (197,000,000) |
CRC Senior Secured Notes and CEI Senior Secured Notes Due 2025 |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Loss on extinguishment of debt | $ 48,000,000 |  |  |  |  |
Senior Notes | CEI Term Loan B |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Debt instrument, face amount |  | $ 2,500,000,000 |  |  |  |
Number of stepdowns | stepdown |  | 1 |  |  |  |
Leverage ratio stepdown |  | 0.25% |  |  |  |
Percentage of original principal amount amortization |  | 0.25% |  |  |  |
Percentage of principal amount issued |  | 99.00% |  |  |  |
Senior Notes | CEI Term Loan B | SOFR | Component One | Minimum |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  | 0.50% |  |  |  |
Senior Notes | CEI Term Loan B | SOFR | Component Two |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  | 1.00% |  |  |  |
Senior Notes | CEI Term Loan B | Fed Funds Effective Rate Overnight Index Swap Rate | Component Two |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  | 0.50% |  |  |  |
Senior Notes | CEI Term Loan B | Base rate |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  | 2.25% |  |  |  |
Senior Notes | CEI Term Loan B | Applicable Margin |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  | 3.25% |  |  |  |
Senior Notes | CEI Term Loan B-1 |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Debt instrument, face amount | $ 2,900,000,000 |  |  |  |  |
Percentage of original principal amount amortization | 0.25% |  |  |  |  |
Percentage of principal amount issued | 99.75% |  |  |  |  |
Senior Notes | CEI Term Loan B-1 | SOFR | Component One | Minimum |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate | 0.50% |  |  |  |  |
Senior Notes | CEI Term Loan B-1 | SOFR | Component Two |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate | 1.00% |  |  |  |  |
Senior Notes | CEI Term Loan B-1 | Fed Funds Effective Rate Overnight Index Swap Rate | Component Two |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate | 0.50% |  |  |  |  |
Senior Notes | CEI Term Loan B-1 | Base rate |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate | 1.75% |  |  |  |  |
Senior Notes | CEI Term Loan B-1 | Applicable Margin |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate | 2.75% |  |  |  |  |
Senior Notes | CRC Senior Secured Notes |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Interest rate | 5.75% |  |  |  |  |
Senior Notes | CEI Senior Secured Notes due 2025 |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Interest rate | 6.25% |  |  |  |  |
CEI Revolving Credit Facility |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Available borrowing capacity |  |  |  | 2,100,000,000 |  |
CEI Revolving Credit Facility | Line of Credit |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Credit facility |  |  |  |  |  | $ 2,250,000,000
Amount outstanding |  |  |  | 70,000,000 |  |
CEI Revolving Credit Facility, Permitted Use Reserves |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Accordion feature |  |  |  |  |  | 40,000,000
CEI Revolving Credit Facility, Regulatory Purpose |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Amount outstanding |  |  |  | $ 46,000,000 |  |
Line of Credit |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Line of credit facility, commitment fee percentage |  |  | 0.35% |  |  |
Line of Credit | SOFR |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  |  | 2.25% |  |  |
Line of Credit | SOFR | Component One |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  |  | 0.10% |  |  |
Line of Credit | SOFR | Component One | Minimum |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  |  | 0.00% |  |  |
Line of Credit | SOFR | Component Two |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  |  | 1.00% |  |  |
Line of Credit | Fed Funds Effective Rate Overnight Index Swap Rate | Component Two |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  |  | 0.50% |  |  |
Line of Credit | Base rate |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Spread on variable rate |  |  | 1.25% |  |  |
Line of Credit | Letter of Credit |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Credit facility |  |  |  |  |  | $ 388,000,000
Line of Credit | Secured Debt |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Debt instrument, face amount |  |  | $ 750,000,000 |  |  |
Interest rate |  |  | 1.25% |  |  |
Number of stepdowns | stepdown |  |  | 3 |  |  |
Leverage ratio stepdown |  |  | 0.25% |  |  |
Line of Credit | Revolving Credit Facility |  |  |  |  |  |
Long-term debt |  |  |  |  |  |
Number of stepdowns | stepdown |  |  | 3 |  |  |
Leverage ratio stepdown |  |  | 0.05% |  |  |

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