Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and equivalents	$ 2,029	$ 2,484
Receivables (less allowance for bad debts of $121 and $137)	6,210	5,787
Inventories	3,257	3,186
Other current assets	1,656	1,629
Total current assets	13,152	13,086
Property, plant, and equipment, net of accumulated depreciation	10,509	10,257
Goodwill	2,119	2,135
Other assets	1,904	1,932
Total assets	27,684	27,410
Current liabilities:
Accounts payable	2,197	2,041
Accrued employee compensation and benefits	771	930
Other current liabilities	1,698	1,781
Total current liabilities	4,666	4,752
Long-term debt	4,820	4,820
Loss contingency related to Macondo well (non-current)	1,022	300
Employee compensation and benefits	566	607
Other liabilities	873	1,141
Total liabilities	11,947	11,620
Shareholders' equity:
Common shares, par value $2.50 per share - authorized 2,000 shares, issued 1,073 shares	2,681	2,682
Paid-in capital in excess of par value	485	486
Accumulated other comprehensive loss	(303)	(309)
Retained earnings	17,048	17,182
Treasury stock, at cost - 145 and 152 shares	(4,201)	(4,276)
Company shareholders' equity	15,710	15,765
Noncontrolling interest in consolidated subsidiaries	27	25
Total shareholders' equity	15,737	15,790
Total liabilities and shareholders' equity	$ 27,684	$ 27,410