Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Other Commitments

Minimum commitments have been updated to give effect to the Clayton Williams Energy Acquisition, the Marcellus Shale upstream divestiture, as well as commitments related to Leviathan development activities, and consist of the following as of September 30, 2017:

(millions)	Drilling, Equipment, and Purchase Obligations		Transportation and Gathering Obligations(1)		Operating Lease  Obligations		Capital  Lease Obligations(2)		Total
October - December 2017	$	136	$	53	$	12	$	20	$	221
2018	425		247		43		74		789
2019	148		276		32		45		501
2020	26		249		32		42		349
2021	7		213		32		29		281
2022 and Thereafter	36		1,499		189		145		1,869
Total	$	778	$	2,537	$	340	$	355	$	4,010

⁽¹⁾ Includes approximately $1.6 billion of future cash payments related to retained Marcellus Shale firm transportation contracts. See discussion above.

⁽²⁾ Annual lease payments, net to our interest, exclude regular maintenance and operating costs. See Note 6. Debt.