Restructuring and Other Costs (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Restructuring, Severance and Other Costs [Abstract]
Severance benefits and related costs	$ 18		$ 18
Professional fees	8		8
Asset impairment charges	3		3
Total restructuring and other costs	$ 29	$ 0	$ 29	$ 0

The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

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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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- Definition

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.

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