STATEMENT OF CONSOLIDATED CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss) including noncontrolling interest	$ 985,000,000	$ (1,130,000,000)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Loss from discontinued operations	0	33,000,000
Unrealized derivative instrument losses, net	42,000,000	0
Gain on divestitures	(616,000,000)	(21,000,000)
Exploratory dry hole expense and unproved leasehold impairments	350,000,000	260,000,000
Depreciation, depletion, and amortization	1,707,000,000	1,995,000,000
Asset retirement obligation accretion	103,000,000	116,000,000
Impairments	8,000,000	1,009,000,000
Deferred income tax benefit	(758,000,000)	(755,000,000)
Other	167,000,000	126,000,000
Changes in operating assets and liabilities:
Receivables	(70,000,000)	192,000,000
Inventories	17,000,000	(2,000,000)
Drilling advances	(72,000,000)	(36,000,000)
Deferred charges and other	(60,000,000)	40,000,000
Accounts payable	2,000,000	(93,000,000)
Accrued expenses	(65,000,000)	(67,000,000)
Deferred credits and noncurrent liabilities	20,000,000	(33,000,000)
NET CASH PROVIDED BY OPERATING ACTIVITIES	1,760,000,000	1,634,000,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property	(1,471,000,000)	(1,281,000,000)
Leasehold and property acquisitions	(142,000,000)	(169,000,000)
Additions to gas gathering, transmission, and processing facilities	(384,000,000)	(33,000,000)
Proceeds from sale of Canadian assets, net of cash divested	661,000,000	0
Proceeds from sale of oil and gas properties	743,000,000	74,000,000
Other, net	(30,000,000)	47,000,000
NET CASH USED IN INVESTING ACTIVITIES	(623,000,000)	(1,362,000,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on fixed-rate debt	(70,000,000)	(1,000,000)
Distributions to noncontrolling interest	(212,000,000)	(215,000,000)
Dividends paid	(285,000,000)	(284,000,000)
Other	(5,000,000)	(9,000,000)
NET CASH USED IN FINANCING ACTIVITIES	(572,000,000)	(509,000,000)
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	565,000,000	(237,000,000)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF YEAR	1,377,000,000	1,467,000,000
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	1,942,000,000	1,230,000,000
SUPPLEMENTARY CASH FLOW DATA:
Interest paid, net of capitalized interest	341,000,000	345,000,000
Income taxes paid, net of refunds	$ 315,000,000	$ 256,000,000