CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
REVENUES AND OTHER INCOME
Net sales	$ 3,060	$ 2,531	$ 6,017	$ 4,654
Interest, dividends and other income	31	27	52	47
Gain on sale of assets, net	512		512	138
TOTAL REVENUES AND OTHER INCOME	3,603	2,558	6,581	4,839
COSTS AND OTHER DEDUCTIONS
Cost of sales	1,486	1,244	2,912	2,525
Selling, general and administrative and other operating expenses	352	338	624	610
Taxes other than on income	77	74	145	149
Depreciation, depletion and amortization	989	1,070	1,931	2,172
Asset impairments and related items			13	78
Exploration expense	8	27	19	36
Interest and debt expense, net	86	88	167	148
TOTAL COSTS AND OTHER DEDUCTIONS	2,998	2,841	5,811	5,718
Income (loss) before income taxes and other items	605	(283)	770	(879)
Benefit (provision) for domestic and foreign income taxes	(285)	96	(363)	299
Income from equity investments	187	51	217	84
Income (loss) from continuing operations	507	(136)	624	(496)
Discontinued operations, net		(3)		435
NET INCOME (LOSS)	$ 507	$ (139)	$ 624	$ (61)
BASIC EARNINGS PER COMMON SHARE
Income (loss) from continuing operations (in dollars per share)	$ 0.66	$ (0.18)	$ 0.81	$ (0.65)
Discontinued operations, net (in dollars per share)				0.57
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	0.66	(0.18)	0.81	(0.08)
DILUTED EARNINGS PER COMMON SHARE
Income (loss) from continuing operations (in dollars per share)	0.66	(0.18)	0.81	(0.65)
Discontinued operations, net (in dollars per share)				0.57
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	0.66	(0.18)	0.81	(0.08)
DIVIDENDS PER COMMON SHARE (in dollars per share)	$ 0.76	$ 0.75	$ 1.52	$ 1.50