Growth and Value Plan (Selling and General Expenses) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Selling and General Expenses [Line Items]
Other Selling, General and Administrative Expense	$ 602	$ 552	$ 1,637	$ 1,635
Selling, General and Administrative Expense	701	552	1,811	1,635
Growth and Value Plan Preparation [Member]
Selling and General Expenses [Line Items]
Restructuring charges	$ 99	$ 0	$ 174	$ 0

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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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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