Quarterly report pursuant to Section 13 or 15(d)

Employee Equity Incentive Plans (Tables)

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Employee Equity Incentive Plans (Tables)
 6 Months Ended
Jun. 30, 2012
Employee Equity Incentive Plans (Tables) [Abstract]  
Restricted Stock Units Estimated Values And Weighted Average Assumptions [Table Text Block]

We estimate the fair value of restricted stock unit awards with time-based vesting using the value of our common stock on the date of grant, reduced by the present value of dividends expected to be paid on our common stock prior to vesting. We estimate the fair value of market-based restricted stock units using a Monte Carlo simulation model on the date of grant. We based the weighted average estimated values of restricted stock unit grants, as well as the weighted average assumptions that we used in calculating the fair value, on estimates at the date of grant, as follows:

  Three Months Ended     Six Months Ended  
  June 30,     July 2,     June 30,     July 2,  
  2012     2011     2012     2011  
Estimated values $ 25.25     $ 19.55     $ 25.46     $ 19.76  
Risk-free interest rate   0.3 %     0.7 %     0.3 %     0.8 %
Dividend yield   3.3 %     3.4 %     3.3 %     3.4 %
Volatility   n/a       n/a       25 %     27 %
Stock Options And Stock Purchase Plan Estimated Values And Weighted Average Assumptions [Table Text Block]

We use the Black-Scholes option pricing model to estimate the fair value of options granted under our equity incentive plans and rights to acquire stock granted under our stock purchase plan. We based the weighted average estimated values of employee stock option grants and rights granted under the stock purchase plan, as well as the weighted average assumptions used in calculating these values, on estimates at the date of grant, as follows:

  Stock Options       Stock Purchase Plan  
  Three Months Ended     Six Months Ended       Six Months Ended  
  June 30,     July 2,     June 30,     July 2,       June 30,     July 2,  
  2012     2011     2012     2011       2012     2011  
Estimated values $ 4.23     $ 3.89     $ 4.27     $ 3.89       $ 5.53     $ 4.41  
Expected life (in years)   5.2       5.4       5.3       5.3         0.5       0.5  
Risk-free interest rate   1.0 %     2.3 %     1.0 %     2.3 %       0.1 %     0.2 %
Volatility   25 %     26 %     25 %     26 %       24 %     23 %
Dividend yield   3.3 %     3.4 %     3.2 %     3.4 %       3.2 %     3.4 %
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

Activity with respect to outstanding restricted stock units (RSUs) for the first half of 2012 was as follows:

      Weighted
      Average
  Number of   Grant-Date
(In Millions, Except Per RSU Amounts) RSUs   Fair Value
December 31, 2011 107.0   $ 19.18
Granted 48.0   $ 25.46
Vested (38.6)   $ 18.73
Forfeited (2.6)   $ 20.27
June 30, 2012 113.8   $ 21.95
Stock Options Activity [Table Text Block]

Activity with respect to outstanding stock options for the first half of 2012 was as follows:

        Weighted
    Number of   Average
(In Millions, Except Per Option Amounts) Options   Exercise Price
December 31, 2011 298.3   $ 20.12
Granted 12.7   $ 27.23
Exercised (71.4)   $ 20.79
Cancelled and forfeited (2.8)   $ 21.28
Expired (4.2)   $ 29.15
June 30, 2012 232.6   $ 20.13
           
Options exercisable as of:        
  December 31, 2011 203.6   $ 20.44
  June 30, 2012 147.0   $ 19.86