Restructuring (Details) (USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	$ 4,284	$ 4,549	$ 8,343	$ 9,764
Marketing and administrative	3,525	3,175	6,689	6,397
Research and development	1,936	2,179	4,094	4,230
Restructuring costs	668	526	654	814
Charges	809	896	926	1,244
2008 Global Restructuring Program [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	6	47	8	76
Restructuring costs	(5)	19	(3)	55
Charges	1	66	5	131
2008 Global Restructuring Program [Member] \| Separation Costs [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Restructuring costs	(7)	12	(8)	31
Charges	(7)	12	(8)	31
2008 Global Restructuring Program [Member] \| Accelerated Depreciation [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	4	11	6	40
Charges	4	11	6	40
2008 Global Restructuring Program [Member] \| Other [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	2	36	2	36
Restructuring costs	2	7	5	24
Charges	4	43	7	60
Merger Restructuring Program [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	96	171	157	196
Marketing and administrative	23		46
Research and development	16	144	61	150
Restructuring costs	673	515	657	767
Charges	808	830	921	1,113
Merger Restructuring Program [Member] \| Separation Costs [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Restructuring costs	646	374	607	583
Charges	646	374	607	583
Merger Restructuring Program [Member] \| Accelerated Depreciation [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	91	149	152	174
Marketing and administrative	22		45
Research and development	38	113	80	113
Restructuring costs		41		41
Charges	151	303	277	328
Merger Restructuring Program [Member] \| Other [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	5	22	5	22
Marketing and administrative	1		1
Research and development	(22)	31	(19)	37
Restructuring costs	27	100	50	143
Charges	11	153	37	202
Separation Costs [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Charges	639	386	599	614
Accelerated Depreciation [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Charges	155	314	283	368
Other [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Charges	$ 15	$ 196	$ 44	$ 262

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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- Definition

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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- Definition

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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