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Stock Based Compensation (Tables) | 12 Months Ended
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Jan. 28, 2017
Nonvested Restricted Stock Shares Activity [Table Text Block] |
Components of Stock Based Compensation Expense | Stock-based compensation expense included the following components:
| 2016 |  | 2015 |  | 2014
| (millions)
Stock options | $ | 43 |  |  | $ | 52 |  |  | $ | 47 |
Restricted stock units | 18 |  |  | 13 |  |  | 26 |
| $ | 61 |  |  | $ | 65 |  |  | $ | 73 |
Weighted Average Assumption Used To Estimate Fair Value of Stock Options | The fair value of stock options granted during 2016, 2015 and 2014 and the weighted average assumptions used to estimate the fair value are as follows:
| 2016 |  | 2015 |  | 2014
Weighted average grant date fair value of stock options granted during the period | $ | 12.14 |  |  | $ | 20.78 |  |  | $ | 19.07 |
Dividend yield | 3.8 | % |  | 2.7 | % |  | 2.5 | %
Expected volatility | 42.7 | % |  | 43.3 | % |  | 42.7 | %
Risk-free interest rate | 1.4 | % |  | 1.7 | % |  | 1.5 | %
Expected life | 5.7 years |  |  | 5.7 years |  |  | 5.7 years |
Schedule of Stock Option Activity | Activity related to stock options for 2016 is as follows:
| Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
| (thousands) |  |  |  | (years) |  | (millions)
Outstanding, beginning of period | 18,829.8 |  |  | $ | 41.92 |  |  |  |  |
Granted | 3,886.8 |  |  | $ | 42.97 |  |  |  |  |
Canceled or forfeited | (1,116.6 | ) |  | $ | 51.33 |  |  |  |  |
Exercised | (1,122.1 | ) |  | $ | 31.30 |  |  |  |  |
Outstanding, end of period | 20,477.9 |  |  | $ | 42.18 |  |  |  |  |
Exercisable, end of period | 12,541.5 |  |  | $ | 36.48 |  |  | 4.1 |  | $ | 46 |
Options expected to vest | 6,657.5 |  |  | $ | 51.07 |  |  | 8.3 |  | $ | — |
Additional Information Relating to Stock Options | Additional information relating to stock options is as follows:
| 2016 |  | 2015 |  | 2014
| (millions)
Intrinsic value of options exercised | $ | 12 |  |  | $ | 127 |  |  | $ | 189 |
Cash received from stock options exercised | 35 |  |  | 125 |  |  | 200 |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | Activity related to restricted stock units for 2016 is as follows:
| Shares |  | Weighted Average Grant Date Fair Value
| (thousands) |  |
Nonvested, beginning of period | 1,497.0 |  |  | $ | 57.06 |
Granted – performance-based | 575.1 |  |  | 43.72 |
Performance adjustment | (237.6 | ) |  | 59.82 |
Granted – time-based | 482.8 |  |  | 35.61 |
Forfeited | (250.0 | ) |  | 32.99 |
Vested | (249.0 | ) |  | 33.70 |
Nonvested, end of period | 1,818.3 |  |  | $ | 53.29 |
Restricted Stock Units [Member] |
Activity Related to Restricted Stock and Restricted Stock Units | Restricted Stock Units The weighted average grant date fair values of restricted stock units granted during 2016, 2015 and 2014 are as follows:
| 2016 |  | 2015 |  | 2014
Restricted stock units | $ | 40.02 |  |  | $ | 62.61 |  |  | $ | 59.41 |

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