Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
REVENUES AND OTHER INCOME
Net sales	$ 24,455	$ 24,172	$ 23,939
Interest, dividends and other income	106	81	180
Gain on sale of equity investments	1,175
TOTAL REVENUES AND OTHER INCOME	25,736	24,253	24,119
COSTS AND OTHER DEDUCTIONS
Cost of sales (excludes depreciation, depletion and amortization of $5,341 in 2013, $4,504 in 2012 and $3,584 in 2011)	7,562	7,844	7,385
Selling, general and administrative and other operating expenses	1,801	1,602	1,523
Depreciation, depletion and amortization	5,347	4,511	3,591
Asset impairments and related items	621	1,751
Taxes other than on income	749	680	605
Exploration expense	256	345	258
Interest and debt expense, net	118	130	298
TOTAL COSTS AND OTHER DEDUCTIONS	16,454	16,863	13,660
INCOME BEFORE INCOME TAXES AND OTHER ITEMS	9,282	7,390	10,459
Provision for domestic and foreign income taxes	(3,755)	(3,118)	(4,201)
Income from equity investments	395	363	382
INCOME FROM CONTINUING OPERATIONS	5,922	4,635	6,640
Discontinued operations, net	(19)	(37)	131
NET INCOME	$ 5,903	$ 4,598	$ 6,771
BASIC EARNINGS PER COMMON SHARE
Income from continuing operations (in dollars per share)	$ 7.35	$ 5.72	$ 8.16
Discontinued operations, net (in dollars per share)	$ (0.02)	$ (0.05)	$ 0.16
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 7.33	$ 5.67	$ 8.32
DILUTED EARNINGS PER COMMON SHARE
Income from continuing operations (in dollars per share)	$ 7.34	$ 5.71	$ 8.16
Discontinued operations, net (in dollars per share)	$ (0.02)	$ (0.04)	$ 0.16
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 7.32	$ 5.67	$ 8.32
DIVIDENDS PER COMMON SHARE (in dollars per share)	$ 2.56	$ 2.16	$ 1.84