Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Minimum commitments as of December 31, 2018 consist of the following:



(millions)	Purchase and Service Obligations		Marcellus Shale Firm Transportation and Other Obligations⁽¹⁾		Gathering, Transportation & Processing Obligations		Operating Lease Obligations ⁽²⁾		Capital Lease Obligations ⁽²⁾		Total
2019	$	197	$	123	$	151	$	91	$	52	$	614
2020	29		122		129		74		46		400
2021	13		121		103		59		31		327
2022	6		118		67		62		22		275
2023	21		113		66		50		20		270
2024 and Thereafter	5		934		285		176		104		1,504
Total	$	271	$	1,531	$	801	$	512	$	275	$	3,390


⁽¹⁾	Amount includes exit cost obligations resulting from a permanent capacity assignment. See Note 10. Marcellus Shale Firm Transportation Commitments.

⁽²⁾

Annual lease payments, net to our interest, exclude regular maintenance and operational costs. See Note 9. Long-Term Debt.