Restructuring-Related Liabilities (Details) (USD $) In Millions	9 Months Ended
Sep. 30, 2011
Rollforward of restructuring-related liabilities, current
Current liabilities beginning balance	$ 53
Payments	(41)
Other Adjustments	7
Current liabilities ending balance	19
Rollforward of restructuring-related liabilities, noncurrent
Noncurrent liabilities beginning balance	399
Other adjustments	12
Noncurrent liabilities ending balance	411
Workforce
Rollforward of restructuring-related liabilities, current
Current liabilities beginning balance	45
Payments	(36)
Other Adjustments	4
Current liabilities ending balance	14
Rollforward of restructuring-related liabilities, noncurrent
Noncurrent liabilities beginning balance	395
Other adjustments	14
Noncurrent liabilities ending balance	409
Space.
Rollforward of restructuring-related liabilities, current
Current liabilities beginning balance	8
Payments	(6)
Other Adjustments	3
Current liabilities ending balance	5
Rollforward of restructuring-related liabilities, noncurrent
Noncurrent liabilities beginning balance	4
Other adjustments	(2)
Noncurrent liabilities ending balance	$ 2

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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