Stock-Based Compensation (Assumptions To Estimate The Fair Value For Stock Options At Grant Date) (Details) - $ / shares |
12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Feb. 29, 2016 |
Feb. 24, 2015 |
Mar. 04, 2014 |
[1] | Jan. 28, 2017 |
Jan. 30, 2016 |
Jan. 31, 2015 |
[1] | |||
Assumptions | ||||||||||
Weighted-average volatility | 36.80% | 29.40% | 30.10% | |||||||
Weighted-average expected dividend yield | 2.20% | 1.80% | 2.20% | |||||||
Expected life in years | 6 years 11 months | 6 years 8 months | 6 years 9 months | |||||||
Minimum [Member] | ||||||||||
Assumptions | ||||||||||
Risk-free interest rate | 0.70% | 0.20% | 0.20% | |||||||
Maximum [Member] | ||||||||||
Assumptions | ||||||||||
Risk-free interest rate | 1.90% | 2.10% | 2.60% | |||||||
Stock options [Member] | ||||||||||
Grant Date Information | ||||||||||
Weighted-average fair value per option at grant date | $ 16 | $ 21 | $ 16 | |||||||
Exercise price per option | $ 51 | $ 81 | $ 61 | $ 50 | ||||||
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