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Valuation and Qualifying Accounts (Details) (Valuation and Qualifying Accounts) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Dec. 27, 2014
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Dec. 28, 2013
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Dec. 29, 2012
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| Valuation and Qualifying Accounts Disclosure [Line Items] | |||
| Valuation allowances and reserves, balance | $ 0us-gaap_ValuationAllowancesAndReservesBalance | $ 2us-gaap_ValuationAllowancesAndReservesBalance | $ 2us-gaap_ValuationAllowancesAndReservesBalance |
| Valuation allowances and reserves, charged to cost and expense | 0us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense | (2)us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense | 0us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense |
| Valuation allowances and reserves, deductions | 0us-gaap_ValuationAllowancesAndReservesDeductions | 0us-gaap_ValuationAllowancesAndReservesDeductions | 0us-gaap_ValuationAllowancesAndReservesDeductions |
| Valuation allowances and reserves, balance | $ 0us-gaap_ValuationAllowancesAndReservesBalance | $ 0us-gaap_ValuationAllowancesAndReservesBalance | $ 2us-gaap_ValuationAllowancesAndReservesBalance |
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- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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