CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
REVENUES AND OTHER INCOME
Net sales	$ 4,004	$ 3,763
Interest, dividends and other income	78	29
Gain on sale of assets, net	7	33
TOTAL REVENUES AND OTHER INCOME	4,089	3,825
COSTS AND OTHER DEDUCTIONS
Cost of sales	1,345	1,350
Purchased commodities	365	13
Selling, general and administrative expenses	140	130
Other operating and non-operating expenses	238	177
Taxes other than on income	111	108
Depreciation, depletion and amortization	973	921
Asset impairments and related items	0	30
Exploration expense	36	15
Interest and debt expense, net	98	97
TOTAL COSTS AND OTHER DEDUCTIONS	3,306	2,841
Income before income taxes and other items	783	984
Provision for domestic and foreign income taxes	(225)	(339)
Income from equity investments	73	63
NET INCOME	$ 631	$ 708
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.84	$ 0.92
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.84	$ 0.92