CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
REVENUES AND OTHER INCOME
Net sales	$ 2,648	$ 3,116	$ 7,302	$ 9,674
Interest, dividends and other income	25	31	72	88
Gain on disposal of assets, net	60	99	198	94
TOTAL REVENUES AND OTHER INCOME	2,733	3,246	7,572	9,856
COSTS AND OTHER DEDUCTIONS
Cost of sales	1,338	1,413	3,863	4,450
Selling, general and administrative and other operating expenses	316	292	926	950
Taxes other than on income	61	79	210	293
Depreciation, depletion and amortization	1,046	1,123	3,218	3,268
Asset impairments and related items	221	3,397	299	3,721
Exploration expense	9	5	45	23
Interest and debt expense, net	68	48	216	86
TOTAL COSTS AND OTHER DEDUCTIONS	3,059	6,357	8,777	12,791
Loss before income taxes and other items	(326)	(3,111)	(1,205)	(2,935)
Benefit from domestic and foreign income taxes	30	445	329	140
Income from equity investments	58	60	142	154
Loss from continuing operations	(238)	(2,606)	(734)	(2,641)
Discontinued operations, net	(3)	(3)	432	(10)
NET LOSS	$ (241)	$ (2,609)	$ (302)	$ (2,651)
BASIC EARNINGS PER COMMON SHARE
Loss from continuing operations (in dollars per share)	$ (0.31)	$ (3.41)	$ (0.96)	$ (3.45)
Discontinued operations, net (in dollars per share)	(0.01)	(0.01)	0.56	(0.01)
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	(0.32)	(3.42)	(0.40)	(3.46)
DILUTED EARNINGS PER COMMON SHARE
Loss from continuing operations (in dollars per share)	(0.31)	(3.41)	(0.96)	(3.45)
Discontinued operations, net (in dollars per share)	(0.01)	(0.01)	0.56	(0.01)
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	(0.32)	(3.42)	(0.40)	(3.46)
DIVIDENDS PER COMMON SHARE (in dollars per share)	$ 0.76	$ 0.75	$ 2.26	$ 2.22