Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 2,530	$ 3,257
Marketable securities	18,741	20,804
Trade receivables, net	2,528	2,518
Inventories	2,737	2,744
Other current assets	2,159	1,886
Total current assets	28,695	31,209
Property, plant and equipment, net	5,296	5,326
Intangible assets, net	3,897	3,968
Goodwill	12,604	12,662
Other assets	1,148	1,133
Total assets	51,640	54,298
Current liabilities:
Accounts payable	940	905
Accrued liabilities	4,195	4,791
Current portion of long-term debt	7	2,495
Total current liabilities	5,142	8,191
Long-term debt	23,885	24,034
Other noncurrent liabilities	3,122	3,013
Contingencies and commitments
Stockholders' equity:
Common stock and additional paid-in capital; $0.0001 par value; 2,750.0 shares authorized; outstanding - 749.6 shares in 2013 and 756.3 shares in 2012	29,465	29,337
Accumulated deficit	(10,111)	(10,423)
Accumulated other comprehensive income	137	146
Total stockholders' equity	19,491	19,060
Total liabilities and stockholders' equity	$ 51,640	$ 54,298