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Financial Instruments Roll-forward of the financial instruments measured at Level 3 (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2012
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Jul. 02, 2011
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Jun. 30, 2012
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Jul. 02, 2011
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Mar. 31, 2012
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Dec. 31, 2011
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Apr. 02, 2011
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Dec. 25, 2010
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| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | $ 32 | $ 52 | $ 32 | $ 52 | $ 32 | $ 38 | $ 57 | $ 57 |
| Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Redemption At Par | 0 | (6) | (6) | (6) | ||||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 0 | 1 | 0 | 1 | ||||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | $ 0 | $ 0 | $ 0 | $ 0 | ||||
| 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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| X | ||||||||||
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- Details
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| X | ||||||||||
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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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| X | ||||||||||
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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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| X | ||||||||||
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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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