Supplemental Financial Information - Restructuring Reserve (Details) $ in Millions |
6 Months Ended | |||
|---|---|---|---|---|
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Jun. 30, 2018
USD ($)
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| Restructuring And Related Activities [Abstract] | ||||
| Balance, December 31, 2017 | $ 29 | |||
| Restructuring charges | 4 | |||
| Non-cash items | (1) | [1] | ||
| Payments | (3) | |||
| Balance, June 30, 2018 | $ 29 | |||
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| X | ||||||||||
- Definition Restructuring reserve non cash impact of accelerated depreciation and changes in exchange rate. No definition available.
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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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| X | ||||||||||
- 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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| X | ||||||||||
- 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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