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Concentrations of Risk (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
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Dec. 25, 2010
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Dec. 26, 2009
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Excluding U.S. Treasury Securities [Member]
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| Concentration Risk By Type Of Concentration [Line Items] | |||
| Concentration Risk, Credit Risk, Maximum Exposure | 750 | ||
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Customer Concentration Risk [Member]
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| Concentration Risk [Line Items] | |||
| Concentration Risk, Percentage | 34.00% | 38.00% | 38.00% |
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Accounts Receivable Customer Concentration Risk [Member] | Accounts Receivable [Member]
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| Concentration Risk [Line Items] | |||
| Concentration Risk, Percentage | 32.00% | 44.00% |
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- Details
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- Definition
Concentration Risk, Credit Risk, Maximum Exposure No definition available.
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- Details
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- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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