Restructuring (Details) (USD $) In Millions	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	$ 4,352	$ 4,191	$ 12,695	$ 13,956
Marketing and administrative	3,340	3,192	10,029	9,589
Research and development	1,954	2,322	6,048	6,552
Restructuring costs	119	50	773	864
Charges	275	383	1,201	1,627
2008 Global Restructuring Program [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	9	(14)	17	62
Marketing and administrative		(4)		(4)
Research and development		10		10
Restructuring costs	11	7	8	62
Charges	20	(1)	25	130
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	5	10	(3)	41
Charges	5	10	(3)	41
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	(1)	(33)	1	3
Marketing and administrative		(4)		(4)
Restructuring costs	6	(3)	11	21
Charges	5	(40)	12	20
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	10	19	16	59
Research and development		10		10
Charges	10	29	16	69
Merger Restructuring Program [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	88	54	245	250
Marketing and administrative	31	134	77	134
Research and development	28	153	89	303
Restructuring costs	108	43	765	810
Charges	255	384	1,176	1,497
Merger Restructuring Program [Member] \| Separation Costs [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Restructuring costs	63	67	670	650
Charges	63	67	670	650
Merger Restructuring Program [Member] \| Other [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Materials and production	7	41	12	62
Marketing and administrative	9	11	10	11
Research and development	1		(18)	37
Restructuring costs	45	17	95	160
Charges	62	69	99	270
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	81	13	233	188
Marketing and administrative	22	123	67	123
Research and development	27	153	107	266
Restructuring costs		(41)
Charges	130	248	407	577
Separation Costs [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Charges	68	77	667	691
Other [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Charges	67	29	111	290
Accelerated Depreciation [Member]
Charges related to Merger Restructuring Program and 2008 Restructuring Program activities by type of cost
Charges	$ 140	$ 277	$ 423	$ 646

Total costs related to goods produced and sold during the reporting period.

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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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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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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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