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Restructuring Costs (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring charges | $ (2) | $ 57 | $ 105 |
| Asset impairment charges | 11 | ||
| Restructuring liabilities | 45 | 82 | 61 |
| Restructuring and Related Cost, Cost Incurred to Date | 202 | ||
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Discontinued Operations [Member]
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| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring charges | (2) | (4) | 48 |
| Restructuring liabilities | 16 | 23 | |
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Lease Obligations [Member]
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| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring charges | $ (13) | $ 70 | |
| X | ||||||||||
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- Definition
The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of costs incurred to date for the specified type of restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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