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v3.25.4

Long-Term Debt (Narrative) (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
May 31, 2023 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Nov. 25, 2025
Debt Instrument [Line Items] |  |  |  |  |
Net proceeds of offering |  | $ 0 | $ 0 | $ 2,278,000,000 |
Standby fees |  | 8,000,000 | 8,000,000 | 8,000,000 |
Interest expense on debt |  | 365,000,000 | 403,000,000 | 343,000,000 |
Aggregate cash payment for repurchased debt |  | $ 600,000,000 | 0 | $ 0 |
Weighted average remaining life of outstanding debt |  | 3 years |  |  |
Issuance costs capitalized |  | $ 0 | 0 |  |
Current portion of long-term debt |  | 810,000,000 | 600,000,000 |  |
Long-term debt carrying value |  | 5,202,000,000 | 5,453,000,000 |  |
Long-term debt, fair value |  | 5,510,000,000 | 5,649,000,000 |  |
5.375% Unsecured Notes [Member] | Unsecured Notes, Due Jan 1, 2026 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt |  | $ 459,000,000 | $ 459,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 5.375% | 5.375% |  |
Debt instrument maturity date |  | Jan. 01, 2026 | Jan. 01, 2026 |  |
6.50% Unsecured Notes [Member] | Unsecured Notes, Due August 15, 2034 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt |  | $ 599,000,000 | $ 599,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.50% | 6.50% |  |
Debt instrument maturity date |  | Aug. 15, 2034 | Aug. 15, 2034 |  |
6.50% Unsecured Notes [Member] | Unsecured Notes, Due February 1, 2038 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt |  | $ 430,000,000 | $ 430,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.50% | 6.50% |  |
Debt instrument maturity date |  | Feb. 01, 2038 | Feb. 01, 2038 |  |
6.625% Unsecured Notes [Member] | Unsecured Notes, Due August 15, 2037 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt |  | $ 390,000,000 | $ 390,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.625% | 6.625% |  |
Debt instrument maturity date |  | Aug. 15, 2037 | Aug. 15, 2037 |  |
5.65% Unsecured Notes [Member] | Unsecured Notes, Due May 15, 2025 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt | $ 600,000,000 | $ 0 | $ 600,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.65% | 5.65% | 5.65% |  |
Debt instrument maturity date | May 15, 2025 | May 15, 2025 | May 15, 2025 |  |
5.65% Unsecured Notes [Member] | Unsecured Notes, Due May 15, 2028 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt | $ 700,000,000 | $ 700,000,000 | $ 700,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.65% | 5.65% | 5.65% |  |
Debt instrument maturity date | May 15, 2028 | May 15, 2028 | May 15, 2028 |  |
6.25% Unsecured Notes [Member] | Unsecured Notes, Due July 15, 2033 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt | $ 600,000,000 | $ 600,000,000 | $ 600,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.25% | 6.25% | 6.25% |  |
Debt instrument maturity date | Jul. 15, 2033 | Jul. 15, 2033 | Jul. 15, 2033 |  |
7.10% Unsecured Notes [Member] | Unsecured Notes, Due July 15, 2053 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt | $ 400,000,000 | $ 400,000,000 | $ 400,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.10% | 7.10% | 7.10% |  |
Debt instrument maturity date | Jul. 15, 2053 | Jul. 15, 2053 | Jul. 15, 2053 |  |
5.15% Unsecured Notes [Member] | Unsecured Notes, Due November 15, 2041 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured Debt |  | $ 148,000,000 | $ 148,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 5.15% | 5.15% |  |
Debt instrument maturity date |  | Nov. 15, 2041 | Nov. 15, 2041 |  |
Permian Acquisition [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Net proceeds of offering | $ 2,278,000,000 |  |  |  |
Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 3,500,000,000 |  |  |
Expiration date - line of credit |  | Dec. 31, 2029 |  |  |
Maximum number of extensions per year |  | 1 |  |  |
Maximum period of years line of credit can extended |  | 5 years |  |  |
Additional period in days added to extension |  | 90 days |  |  |
Line of credit facility remaining outstanding borrowings |  | $ 0 |  |  |
Equity adjustment, cumulative historical ceiling test impairment |  | $ 7,700,000,000 |  |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Financing debt-to-adjusted capitalization, percentage |  | 0.60 |  |  |
Revolving Credit Facility [Member] | Parent Company [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 2,200,000,000 |  |  |
Revolving Credit Facility [Member] | Subsidiary Issuer [Member] | Canada [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | 1,300,000,000 |  |  |
Revolving Credit Facility [Member] | Commercial Paper [Member] | United States [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Current portion of long-term debt |  | $ 351,000,000 |  |  |
Weighted average interest rate |  | 4.37% |  |  |
2 Year Term Credit Agreement [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  | $ 1,200,000,000

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