Contingencies and Commitments (Tables)

3 Months Ended

Mar. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Gathering, Processing and Transportation 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.

	March 31, 2017
	($ in millions)
2017	$	977
2018	1,102
2019	1,067
2020	989
2021	894
2022 – 2035	5,212
Total	$	10,241