| **Financial Instruments and Commodity Contracts - Income Statement Location (Details) (USD $)In Millions, unless otherwise specified** | 3 Months Ended | 6 Months Ended |
|----------------------------------------------------------------------------------------------------------------------------------------|----------------|----------------|
||
| **Derivative Instruments, Gain (Loss) [Line Items]**                                                                                   |           |           |   |   |
| Derivative Instruments, Gain (Loss) Recognized in Income, Net                                                                          | $ 1            | $ (1)          | $ 0 | $ 3 |
| Cross currency swaps | Interest Expense [Member]                                                                                       |           |           |   |   |
| **Derivative Instruments, Gain (Loss) [Line Items]**                                                                                   |           |           |   |   |
| Derivative Instruments, Gain (Loss) Recognized in Income, Net                                                                          | 0              | 0              | 0 | (1) |
| Foreign currency contracts | Other Income Expense Net [Member]                                                                         |           |           |   |   |
| **Derivative Instruments, Gain (Loss) [Line Items]**                                                                                   |           |           |   |   |
| Derivative Instruments, Gain (Loss) Recognized in Income, Net                                                                          | (1)            | (1)            | (2) | 3 |
| Forward Contracts [Member] | Commodity forward contracts | Cost of Sales [Member]                                                      |           |           |   |   |
| **Derivative Instruments, Gain (Loss) [Line Items]**                                                                                   |           |           |   |   |
| Derivative Instruments, Gain (Loss) Recognized in Income, Net                                                                          | $ 2            | $ 0            | $ 2 | $ 1 |

| X                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_DerivativeInstrumentsGainLossLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
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| - Definition
The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959
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