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Stock-Based Incentive Compensation Plans (Details) (Share-based Compensation, Allocation of Recognized Period Costs) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 27, 2014
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Dec. 28, 2013
|
Dec. 29, 2012
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| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
| Allocated share-based compensation expense | $ 81 | $ 91 | $ 97 |
| Cost of Sales | |||
| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
| Allocated share-based compensation expense | 3 | 5 | 8 |
| Research and Development Expense | |||
| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
| Allocated share-based compensation expense | 44 | 48 | 52 |
| Selling, General and Administrative Expenses | |||
| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
| Allocated share-based compensation expense | $ 34 | $ 38 | $ 37 |