Growth and Value Plan & Discontinued Operations (Selling and General Expenses) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Selling and General Expenses [Line Items]
Other selling and general expenses	$ 1,483	$ 1,377
Total selling and general expenses	1,709	1,387	1,318
Growth and Value Plan Preparation [Member]
Selling and General Expenses [Line Items]
Growth and Value Plan costs	$ 226	$ 10

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.

+ References+ Details

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.

+ References+ Details