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Long-Term Debt - Summary of Debt and Revolving Credit Facility (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Long-term debt
Proceeds	$ 1,308	$ 9,765	$ 33
Repayments	1,977	$ 3,742	$ 736
Debt issuance and extinguishment costs	56
Senior Notes
Long-term debt
Proceeds	1,200
Repayments	0
Debt issuance and extinguishment costs	17
CRC Notes
Long-term debt
Proceeds	0
Repayments	1,700
Debt issuance and extinguishment costs	24
CEI Senior Notes
Long-term debt
Proceeds	0
Repayments	100
Debt issuance and extinguishment costs	13
CRC Term Loan
Long-term debt
Proceeds	0
Repayments	47
Debt issuance and extinguishment costs	0
CRC Incremental Term Loan
Long-term debt
Proceeds	108
Repayments	126
Debt issuance and extinguishment costs	2
Baltimore Term Loan
Long-term debt
Proceeds	0
Repayments	2
Debt issuance and extinguishment costs	0
Special Improvement District Bonds
Long-term debt
Proceeds	0
Repayments	2
Debt issuance and extinguishment costs	$ 0

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (e)
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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

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-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
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The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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