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Derivative Instruments and Hedging Activities - Pre-tax Gains (Losses) (Details) - Not designated as a hedge - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Derivative instruments and hedging activities |  |  |  |
Total gain (loss) | $ 1 | $ (5) | $ 3 | $ (7)
Foreign currency exchange contracts | Other, net |  |  |  |
Derivative instruments and hedging activities |  |  |  |
Total gain (loss) | 0 | (1) | 0 | 3
Foreign currency forward contracts | Other, net |  |  |  |
Derivative instruments and hedging activities |  |  |  |
Total gain (loss) | 0 | 0 | 0 | (4)
Metal contracts | Cost of sales |  |  |  |
Derivative instruments and hedging activities |  |  |  |
Total gain (loss) | 2 | (3) | 4 | (5)
Interest Rate Swaps |  |  |  |
Derivative instruments and hedging activities |  |  |  |
Total gain (loss) | $ (1) | $ (1) | $ (1) | $ (1)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: 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=64837297&loc=SL5618551-113959 Reference 2: 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=64837297&loc=SL5624171-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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