Financial Instruments (Summary of Derivative Instruments) (Details) - USD ($) $ in Millions |
Mar. 31, 2018 |
Dec. 30, 2017 |
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| Level 2 | Cash Flow Hedging | Foreign Currency Forward Contracts | ||
| Foreign Currency Forward Contracts - gains (losses) | ||
| Contracts designated as cash flow hedging instruments | $ 5 | $ 7 |
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- References No definition available.
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- Definition Fair value as of the balance sheet date of all derivatives designated as foreign currency fair value hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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