Commitments (Tables)

3 Months Ended

Mar. 31, 2018

Commitments

Schedule of future minimum payments for firm transportation, drilling rig and completion services, gas processing, gathering and compression, office and equipment agreements, and leases that have remaining lease terms in excess of one year

	Firm transportation		Processing, gathering and compression		Drilling rigs and completion services		Office and equipment
(in millions)	(a)		(b)		(c)		(d)		Total
Remainder of 2018	$	653		338		54		11		1,056
2019		1,086		365		43		11		1,505
2020		1,106		383		—		10		1,499
2021		1,085		367		—		9		1,461
2022		1,033		364		—		8		1,405
2023		1,021		355		—		7		1,383
Thereafter		8,588		1,568		—		49		10,205
Total	$	14,572		3,740		97		105		18,514