STATEMENT OF CONSOLIDATED OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
REVENUES AND OTHER:
Oil and gas production revenues	$ 1,936	$ 1,346	$ 3,669	$ 2,858
Gain (loss) on divestitures	2	(21)	9	320
Other	(9)	59	(2)	84
Revenues	1,929	1,384	3,676	3,262
OPERATING EXPENSES:
Lease operating expenses	356	372	705	708
Gathering, transmission, and processing	82	48	168	105
Taxes other than income	49	29	104	71
Exploration	76	108	152	200
General and administrative	117	106	231	209
Transaction, reorganization, and separation	12	4	12	(6)
Depreciation, depletion and amortization			1,161	1,148
Asset retirement obligation accretion	27	37	54	73
Impairments	0	0	0	8
Financing costs, net	94	99	193	199
Total operating expenses	1,421	1,375	2,780	2,715
NET INCOME BEFORE INCOME TAXES	508	9	896	547
Current income tax provision	249	126	447	314
Deferred income tax benefit	(10)	(730)	(26)	(647)
NET INCOME INCLUDING NONCONTROLLING INTEREST	269	613	475	880
Net income attributable to noncontrolling interest	74	41	135	95
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK	$ 195	$ 572	$ 340	$ 785
NET INCOME PER COMMON SHARE:
Basic (in USD per share)	$ 0.51	$ 1.50	$ 0.89	$ 2.06
Diluted (in USD per share)	$ 0.51	$ 1.50	$ 0.88	$ 2.05
WEIGHTED-AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic (in shares)	382	381	382	380
Diluted (in shares)	385	383	384	383
DIVIDENDS DECLARED PER COMMON SHARE (in USD per share)	$ 0.25	$ 0.25	$ 0.50	$ 0.5
Oil and gas property and equipment
OPERATING EXPENSES:
Depreciation, depletion and amortization	$ 573	$ 536	$ 1,091	$ 1,074
Other assets
OPERATING EXPENSES:
Depreciation, depletion and amortization	35	36	70	74
Oil
REVENUES AND OTHER:
Oil and gas production revenues	1,576	1,050	2,969	2,222
Natural Gas
REVENUES AND OTHER:
Oil and gas production revenues	212	233	434	488
Natural gas liquids
REVENUES AND OTHER:
Oil and gas production revenues	$ 148	$ 63	$ 266	$ 148