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Taxes on Income (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Reconciliation of beginning and ending amount of unrecognized tax benefits      
Balance at beginning of year $ 74 $ 58 $ 53
Additions based on tax positions related to the current year 27 14 12
Additions for tax positions of prior years 10 3 3
Reduction for tax positions of prior years (9) (1) (10)
Reduction for settlements (20) 0 0
Balance at end of year $ 82 $ 74 $ 58