Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 1,169	$ 264
Receivables	2,042	2,134
Inventories	404	364
Other current assets	211	172
Current assets held for sale	392	41
Total current assets	4,218	2,975
Equity method investments	1,184	1,201
Property, plant and equipment, less accumulated depreciation, depletion and amortization of $20,207 and $21,895	27,824	28,145
Goodwill	457	499
Other noncurrent assets	1,088	1,153
Noncurrent assets held for sale	1,164	1,647
Total assets	35,935	35,620
Current liabilities:
Commercial paper	0	135
Accounts payable	2,439	2,206
Payroll and benefits payable	121	240
Accrued taxes	193	1,445
Other current liabilities	147	214
Long-term debt due within one year	68	68
Current liabilities held for sale	1,006	25
Total current liabilities	3,974	4,333
Long-term debt	6,362	6,394
Deferred tax liabilities, noncurrent	2,525	2,492
Defined benefit postretirement plan obligations	668	604
Asset retirement obligations	1,804	2,009
Deferred credits and other liabilities, noncurrent	392	401
Noncurrent liabilities held for sale	342	43
Total liabilities	16,067	16,276
Commitments and contingencies
Stockholders' Equity
Preferred stock - no shares issued or outstanding (no par value, 26 million shares authorized)	0	0
Common stock issued - 770 million and 770 million shares (par value $1 per share, 1.1 billion shares authorized)	770	770
Common stock, securities exchangeable into common stock - no shares issued or outstanding (no par value, 29 million shares authorized)	0	0
Common stock, held in treasury, at cost - 97 million and 73 million shares	(3,718)	(2,903)
Additional paid-in capital	6,530	6,592
Retained earnings	16,564	15,135
Accumulated other comprehensive loss	(278)	(250)
Total stockholders equity	19,868	19,344
Total liabilities and stockholders' equity	$ 35,935	$ 35,620