Statement of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss including noncontrolling interest	$ (561)	$ (4,636)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Loss from discontinued operations	0	132
Depreciation, depletion, and amortization	1,082	8,302
Asset retirement obligation accretion	38	36
Benefit from deferred income taxes	(181)	(2,935)
Other	57	(3)
Changes in operating assets and liabilities:
Receivables	135	247
Inventories	10	22
Drilling advances	(17)	(169)
Deferred charges and other	(79)	(102)
Accounts payable	(75)	(190)
Accrued expenses	(106)	(204)
Deferred credits and noncurrent liabilities	(27)	77
NET CASH PROVIDED BY CONTINUING OPERATING ACTIVITIES	276	577
NET CASH PROVIDED BY DISCONTINUED OPERATIONS	0	73
NET CASH PROVIDED BY OPERATING ACTIVITIES	276	650
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property	(583)	(1,627)
Leasehold and property acquisitions	(19)	(91)
Additions to gas gathering, transmission, and processing facilities	0	(63)
Other, net	10	(72)
NET CASH USED IN CONTINUING INVESTING ACTIVITIES	(592)	(1,853)
NET CASH USED IN DISCONTINUED OPERATIONS	0	(265)
NET CASH USED IN INVESTING ACTIVITIES	(592)	(2,118)
CASH FLOWS FROM FINANCING ACTIVITIES:
Commercial paper and bank credit facilities, net	0	1,028
Distributions to noncontrolling interest	(54)	(21)
Dividends paid	(95)	(94)
Other	2	15
NET CASH PROVIDED BY (USED IN) CONTINUING FINANCING ACTIVITIES	(147)	928
NET CASH PROVIDED BY DISCONTINUED OPERATIONS	0	0
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(147)	928
NET DECREASE IN CASH AND CASH EQUIVALENTS	(463)	(540)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	1,467	769
CASH AND CASH EQUIVALENTS AT END OF PERIOD	1,004	229
SUPPLEMENTARY CASH FLOW DATA:
Interest paid, net of capitalized interest	126	89
Income taxes paid, net of refunds	$ 84	$ 142