Commitments and Contingencies Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Minimum commitments

Minimum commitments as of December 31, 2013 consist of the following:

(millions)	Drilling, Equipment, and Purchase Obligations		Transportation and Gathering		Operating Lease  Obligations		Capital  Lease  Payments(1)		Total
2014	$	394	$	91	$	42	$	77	$	604
2015	201		134		49		82		466
2016	103		135		61		66		365
2017	2		134		61		66		263
2018	—		133		53		66		252
2019 and Thereafter	—		465		400		224		1,089
Total	$	700	$	1,092	$	666	$	581	$	3,039

(1)Annual lease payments, net to our interest, exclude regular maintenance and operational costs. See Note 10. Long-Term Debt.