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Contingencies and Commitments (Tables) | 12 Months Ended
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Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract] |
Schedule of undiscounted commitments | The aggregate undiscounted commitments under our gathering, processing and transportation agreements, excluding any reimbursement from working interest and royalty interest owners, credits for third-party volumes or future costs under cost-of-service agreements, are presented below:
|  | December 31, 2020
|  | ($ in millions)
2021 |  | $ | 865 |
2022 |  | 729 |
2023 |  | 596 |
2024 |  | 521 |
2025 |  | 471 |
2026 – 2034 |  | 1,911 |
Total |  | $ | 5,093 |
The aggregate undiscounted minimum future payments under these service contracts are detailed below.
|  | December 31, 2020
|  | ($ in millions)
2021 |  | $ | 7 |
2022 |  | 2 |
Total |  | $ | 9 |

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- Definition Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 303 -Paragraph (a) -Subparagraph (5) + Details
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