Long-Term Debt And Lease Liabilities (Tables)

6 Months Ended

Jun. 30, 2020

Long-Term Debt And Lease Liabilities [Abstract]

Components Of Lease Cost

		Period Ended
		For the Three Months Ended				For the Six Months Ended
	Statement of Operations Account	June 30, 2020		June 30, 2019		June 30, 2020		June 30, 2019
Operating lease cost:
	Production costs and taxes	$	4	$	3	$	7	$	6
	General and administrative		13		12		25		24
Total operating lease cost		$	17	$	15	$	32	$	30
Finance lease cost:
Amortization of right of	Depreciation, depletion,
use assets	and amortization	$	18	$	20	$	36	$	41
Interest on lease liabilities	Net interest expense		2		2		3		3
Total finance lease cost		$	20	$	22	$	39	$	44

Supplemental Cash Flow Information Related To Leases

	Period Ended
	For the Three Months Ended				For the Six Months Ended
	June 30, 2020		June 30, 2019		June 30, 2020		June 30, 2019
Cash paid for amounts included in lease liabilities:
Operating cash flows from operating leases	$	17	$	15	$	32	$	30
Operating cash flows from finance leases		2		2		3		3
Finance cash flows from finance leases		15		19		23		31
Right of use assets obtained in exchange for lease obligations:
Operating leases		63		—		63		98

Supplemental Balance Sheet Information Related To Leases

	Balance Sheet as of
	June 30, 2020		December 31, 2019
Operating Leases:
Right of use asset - operating leases	$	73		$	41
Lease liabilities - current	$	62		$	41
Lease liabilities - noncurrent		11			—
Total operating lease liabilities	$	73		$	41
Finance Leases:
Other property and equipment, gross	$	264		$	295
Accumulated depreciation		(138)			(146)
Other property and equipment, net	$	126		$	149
Lease liabilities - current	$	59		$	61
Lease liabilities - noncurrent		30			41
Total finance lease liabilities	$	89		$	102

Schedule Of Weighted Average Remaining Lease Term And Discount Rate

	Operating Leases		Finance Leases
Weighted average remaining lease term		1.2 years		0.9 years
Weighted average discount rate		4.07%		5.44%

Maturity Analysis For Operating and Finance Lease Liabilities

	Operating Leases			Finance Leases
2020		$	32	$	33
2021			43		56
Total lease payments			75		89
Less imputed interest			(2)		—
Total		$	73	$	89