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Stock And Stock-Based Incentive Plans (Narrative) (Details) (USD $)
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3 Months Ended |
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May 31, 2014
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May 31, 2013
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Feb. 28, 2014
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FY 2015 Share Repurchase Authorization Member
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| Stock and Stock-Based Incentive Plans |
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| Share repurchase, authorized amount |
$ 1,000,000,000 |
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Share Repurchase Program [Member]
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| Stock and Stock-Based Incentive Plans |
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| Shares repurchased during the period |
3,841,939 |
2,945,622 |
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| Share repurchase, average purchase price per share |
$ 45.33 |
$ 42.29 |
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| Share repurchase, amount remaining for repurchase |
1,100,000,000 |
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Share Repurchase Program [Member] | FY 2013 Share Repurchase Authorizations Member
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| Stock and Stock-Based Incentive Plans |
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| Share repurchase, authorized amount |
800,000,000 |
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Stock Compensation Plan [Member]
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| Stock and Stock-Based Incentive Plans |
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| Incentive stock option grants in period |
0 |
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| Capitalized share-based compensation |
0 |
0 |
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Stock Option [Member]
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| Stock and Stock-Based Incentive Plans |
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| Options granted, Number of Shares |
2,003,238 |
1,569,117 |
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| Cash received as a result of stock option exercises |
6,800,000 |
17,000,000 |
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| Total intrinsic value of options exercised |
10,600,000 |
23,400,000 |
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| Related tax benefits |
4,200,000 |
9,400,000 |
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| Options granted, weighted average grant date fair value |
$ 13.21 |
$ 15.55 |
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| Unrecognized compensation costs related to nonvested options/MSUs |
50,600,000 |
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| Weighted average period, years |
2 years 7 months 6 days |
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Stock Option [Member] | Minimum [Member]
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| Stock and Stock-Based Incentive Plans |
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| Vesting period, in years |
1 year |
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Stock Option [Member] | Maximum [Member]
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| Stock and Stock-Based Incentive Plans |
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| Vesting period, in years |
4 years |
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| Years until expiration |
10 years |
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Cash-Settled Restricted Stock Units [Member]
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| Stock and Stock-Based Incentive Plans |
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| Vesting period, in years |
3 years |
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| Stock units granted, number of units or shares |
587,186 |
541,741 |
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| Stock units granted, weighted average grant date fair value |
$ 44.96 |
$ 42.68 |
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| Related tax benefits |
8,400,000 |
9,000,000 |
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| Payment related to restricted stock units vested during the period |
21,100,000 |
22,700,000 |
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| Awards outstanding |
1,631,000 |
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1,531,000 |
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Cash-Settled Restricted Stock Units [Member] | Minimum [Member]
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| Stock and Stock-Based Incentive Plans |
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| Cash payment per RSU, percentage |
75.00% |
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Cash-Settled Restricted Stock Units [Member] | Maximum [Member]
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| Stock and Stock-Based Incentive Plans |
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| Cash payment per RSU, percentage |
200.00% |
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Stock-Settled Restricted Stock Units [Member]
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| Stock and Stock-Based Incentive Plans |
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| Vesting period, in years |
3 years |
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| Conversion ratio, number of final trading days in vesting period |
40 days |
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| Stock units granted, number of units or shares |
245,190 |
235,459 |
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| Stock units granted, weighted average grant date fair value |
$ 55.37 |
$ 51.95 |
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| Related tax benefits |
7,100,000 |
6,800,000 |
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| Unrecognized compensation costs related to nonvested options/MSUs |
$ 22,400,000 |
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| Weighted average period, years |
1 year 7 months 6 days |
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| Awards outstanding |
816,000 |
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852,000 |
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Stock-Settled Restricted Stock Units [Member] | Minimum [Member]
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| Stock and Stock-Based Incentive Plans |
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| MSUs converted to common stock |
0 |
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Stock-Settled Restricted Stock Units [Member] | Maximum [Member]
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| Stock and Stock-Based Incentive Plans |
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| MSUs converted to common stock |
2 |
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