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Contingencies and Commitments (Tables)
9 Months Ended
Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]  
Schedule of contractual obligation
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:
 
 
September 30,
2020
 
 
($ in millions)
Remainder of 2020
 
$
255

2021
 
872

2022
 
804

2023
 
671

2024
 
597

2025 – 2034
 
3,051

Total
 
$
6,250