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Financial Instruments (Schedule Of Financial Assets Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs (Level 3)) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
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Dec. 31, 2011
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Dec. 25, 2010
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Auction Rate Securities [Member]
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| Financial Instrument [Line Items] | ||
| Beginning balance | $ 57 | $ 159 |
| Redemption at par | (21) | (98) |
| Gain (loss) included in net income (loss) | 2 | 3 |
| Change in fair value included in other comprehensive income (loss) | (7) | |
| Ending balance | 38 | 57 |
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UBS Put Option [Member]
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| Financial Instrument [Line Items] | ||
| Beginning balance | 2 | |
| Gain (loss) included in net income (loss) | $ (2) | |
| X | ||||||||||
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- Definition
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Redemption At Par No definition available.
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- Details
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- Definition
This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income (a separate component of shareholders' equity). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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