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Derivatives and Fair Value of Financial Instruments-Counterparty Risk (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 26, 2020 USD ($) item | Sep. 28, 2019 USD ($) | Sep. 26, 2020 USD ($) item | Sep. 28, 2019 USD ($)
Commodities | Cost of sales |  |  |  |
Derivatives |  |  |  |
Gains (losses) on derivatives | $ 10 | $ (17) | $ 27 | $ (48)
Foreign currencies |  |  |  |
Derivatives |  |  |  |
Number of counterparties | item | 3 |  | 3 |
Foreign currencies | Maximum |  |  |  |
Derivatives |  |  |  |
Credit risk associated with derivative contracts |  |  | $ 4 |
Foreign currencies | Cost of sales |  |  |  |
Derivatives |  |  |  |
Gains (losses) on derivatives | $ 2 | $ 1 | 15 | 5
Foreign currencies | Foreign currency gains (losses), net |  |  |  |
Derivatives |  |  |  |
Gains (losses) on derivatives | (3) |  | (2) |
Equity | Other investment income (loss), net |  |  |  |
Derivatives |  |  |  |
Gains (losses) on derivatives | $ (16) |  | 7 | $ (3)
Interest rate swaps | Interest expense |  |  |  |
Derivatives |  |  |  |
Gains (losses) on derivatives |  |  | $ (1) |

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- Definition Maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611 + Details
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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 + Details
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