Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 2)

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Fair Value Measurements (Details 2) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2013
Jun. 28, 2013
Nonrecurring fair value measurements    
Equity Method Investment, Other than Temporary Impairment $ 144 $ 144
Gain (Loss) on Sale of Previously Unissued Stock by Equity Investee $ 139 $ 139