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Casualty, Environmental and Other Reserves (Details) (USD $) | Jun. 27, 2014 | Dec. 27, 2013
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All Contingencies Reserves [Line Items] |  |
Loss Contingency, Accrual, Current | $ 151,000,000 | $ 151,000,000
Loss Contingency, Accrual, Long-term | 289,000,000 | 300,000,000
Casualty [Member] |  |
All Contingencies Reserves [Line Items] |  |
Loss Contingency, Accrual, Current | 76,000,000 | 72,000,000
Loss Contingency, Accrual, Long-term | 193,000,000 | 208,000,000
Loss Contingency, Accrual, Total | 269,000,000 | 280,000,000
Self-insured retention amount, per occurrence | 50,000,000 |
Number of individual claims expected to exceed self insured retention amount | 0 |
Personal Injury [Member] |  |
All Contingencies Reserves [Line Items] |  |
Loss Contingency, Accrual, Current | 63,000,000 | 59,000,000
Loss Contingency, Accrual, Long-term | 136,000,000 | 148,000,000
Loss Contingency, Accrual, Total | 199,000,000 | 207,000,000
Occupational [Member] |  |
All Contingencies Reserves [Line Items] |  |
Loss Contingency, Accrual, Current | 3,000,000 | 3,000,000
Loss Contingency, Accrual, Long-term | 18,000,000 | 20,000,000
Loss Contingency, Accrual, Total | 21,000,000 | 23,000,000
Asbestos [Member] |  |
All Contingencies Reserves [Line Items] |  |
Loss Contingency, Accrual, Current | 10,000,000 | 10,000,000
Loss Contingency, Accrual, Long-term | 39,000,000 | 40,000,000
Loss Contingency, Accrual, Total | 49,000,000 | 50,000,000
Environmental [Member] |  |
All Contingencies Reserves [Line Items] |  |
Loss Contingency, Accrual, Current | 59,000,000 | 59,000,000
Loss Contingency, Accrual, Long-term | 48,000,000 | 41,000,000
Loss Contingency, Accrual, Total | 107,000,000 | 100,000,000
Environmental impaired sites | 257 |
Other [Member] |  |
All Contingencies Reserves [Line Items] |  |
Loss Contingency, Accrual, Current | 16,000,000 | 20,000,000
Loss Contingency, Accrual, Long-term | 48,000,000 | 51,000,000
Loss Contingency, Accrual, Total | 64,000,000 | 71,000,000
Casualty, Environmental and Other [Member] |  |
All Contingencies Reserves [Line Items] |  |
Loss Contingency, Accrual, Current | 151,000,000 | 151,000,000
Loss Contingency, Accrual, Long-term | 289,000,000 | 300,000,000
Loss Contingency, Accrual, Total | $ 440,000,000 | $ 451,000,000

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- Definition Total number of claims expected to exceed self-insured retention amount, as of the balance sheet date. + References No definition available. + Details
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- Definition Number of environmentally impaired sites at which the Company has been identified as a potentially responsible party. + References No definition available. + Details
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- Definition Self Insurance Reserve Per Occurrence + References No definition available. + Details
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- Details
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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Definition Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Definition Amount of loss contingency liability expected to be resolved after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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