CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
REVENUES AND OTHER INCOME
Net sales	$ 2,123	$ 3,089
Interest, dividends and other income	20	31
Gain (loss) on sale of assets, net	138	(24)
TOTAL REVENUES AND OTHER INCOME	2,281	3,096
COSTS AND OTHER DEDUCTIONS
Cost of sales (excludes depreciation, depletion, and amortization)	1,281	1,557
Selling, general and administrative and other operating expenses	272	311
Taxes other than on income	75	107
Depreciation, depletion and amortization	1,102	1,029
Asset impairments and related items	78	324
Exploration expense	9	8
Interest and debt expense, net	60	30
TOTAL COSTS AND OTHER DEDUCTIONS	2,877	3,366
Loss before income taxes and other items	(596)	(270)
Benefit (provision) for domestic and foreign income taxes	203	19
Income from equity investments	33	36
Loss from continuing operations	(360)	(215)
Discontinued operations (net)	438	(3)
Net income (loss)	78	(218)
NET INCOME (LOSS)	$ 78	$ (218)
BASIC EARNINGS (LOSS) PER COMMON SHARE
Loss from continuing operations (in dollars per share)	$ (0.47)	$ (0.28)
Discontinued operations, net (in dollars per share)	0.57
BASIC EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	0.10	(0.28)
DILUTED EARNINGS (LOSS) PER COMMON SHARE
Income (loss) from continuing operations (in dollars per share)	(0.47)	(0.28)
Discontinued operations, net (in dollars per share)	0.57
DILUTED EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	0.10	(0.28)
DIVIDENDS PER COMMON SHARE (in dollars per share)	$ 0.75	$ 0.72