Financial Instruments (Details) (Summary of Derivative Instruments) (Details) - USD ($) $ in Millions |
Sep. 26, 2015 |
Dec. 27, 2014 |
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| Cash Flow Hedging Instruments | ||
| Derivative [Line Items] | ||
| Derivative, notional amount | $ 197 | $ 298 |
| Fair Value, Inputs, Level 2 | Foreign Exchange Contract | ||
| Derivative [Line Items] | ||
| Contracts designated as cash flow hedging instruments | (13) | (6) |
| Contracts not designated as hedging instruments | (2) | (1) |
| Derivative, hedging instruments, net | 15 | |
| Fair Value, Inputs, Level 2 | Fair Value Hedging | Interest Rate Contract | ||
| Derivative [Line Items] | ||
| Derivative, hedging instruments, net | $ 5 | $ 3 |
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate net fair value of all derivative instruments designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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- Definition Fair value as of the balance sheet date of all foreign currency derivatives not designated as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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