CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Pending Litigation [Member] Deepwater Horizon [Member]	Dec. 31, 2013 Pending Litigation [Member] Deepwater Horizon [Member]	Jun. 30, 2014 Pending Litigation [Member] Tronox Litigation [Member]	Mar. 31, 2014 Pending Litigation [Member] Tronox Litigation [Member]	Dec. 31, 2013 Pending Litigation [Member] Tronox Litigation [Member]
Current Assets
Cash and cash equivalents	$ 5,365	$ 3,698
Accounts receivable (net of allowance of $7 million and $5 million)
Customers	1,484	1,481
Others	1,595	1,241
Other current assets	536	688
Total	8,980	7,108
Properties and Equipment
Cost	72,529	71,244
Less accumulated depreciation, depletion, and amortization	31,042	30,315
Net properties and equipment	41,487	40,929
Other Assets	2,352	2,082
Goodwill and Other Intangible Assets	5,595	5,662
Total Assets	58,414	55,781
Current Liabilities
Accounts payable	3,979	3,530
Current asset retirement obligations	511	409
Accrued expenses	1,009	1,264
Current portion of long-term debt	0	500
Litigation-related contingent liability			92	0	5,169	5,150	0
Total	10,760	5,703
Long-term Debt	13,414	13,065
Other Long-term Liabilities
Deferred income taxes	9,186	9,245
Asset retirement obligations	1,499	1,613
Tronox-related contingent liability					0		850
Other	2,383	1,655
Total	13,068	13,363
Stockholders' equity
Common stock, par value $0.10 per share (1.0 billion shares authorized, 525.1 million and 522.5 million shares issued)	52	52
Paid-in capital	8,798	8,629
Retained earnings	11,684	14,356
Treasury stock (19.2 million and 18.8 million shares)	(930)	(895)
Accumulated other comprehensive income (loss)	(273)	(285)
Total Stockholders’ Equity	19,331	21,857
Noncontrolling interests	1,841	1,793
Total Equity	21,172	23,650
Total Liabilities and Equity	$ 58,414	$ 55,781