Contingencies and Commitments (Tables)

12 Months Ended

Dec. 31, 2019

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, 2019
	($ in millions)
2020	$	1,136
2021	1,033
2022	913
2023	789
2024	690
2025 – 2034	3,479
Total	$	8,040

The aggregate undiscounted minimum future payments under these service contracts are detailed below.

	December 31, 2019
	($ in millions)
2020	$	7
2021	7
2022	2
Total	$	16