Severance (Narrative)(Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2012 Employees
Number of employees accepted the Voluntary program	1,100
Minimum [Member]
Severance costs	225
Maximum [Member]
Severance costs	275

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

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+ Details