Restructuring Charges/Other - Restructuring Reserve (Details) - USD ($) $ in Millions |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Restructuring And Related Activities [Abstract] | ||||||||
| Balance, January 1 | $ 57 | $ 161 | $ 349 | |||||
| Restructuring charges | [1] | 14 | 20 | 126 | ||||
| Non-cash items | [2] | 0 | 0 | (22) | ||||
| Payments | (39) | (124) | (292) | |||||
| Balance, December 31 | $ 32 | $ 57 | $ 161 | |||||
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| X | ||||||||||
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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- Definition Amount of consideration other than cash used to fully or partially settle an accrued restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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