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Stock-Based Compensation (Range of Exercise Prices) (Details) (USD $) | 12 Months Ended
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May 31, 2014
$ 20.29 – $ 34.17 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | 1,455,179
Outstanding Options, Average Remaining Option Life (years) | 5 years 8 months 27 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 27.12
Exercisable Options, Number Exercisable (shares) | 658,257
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 26.50
Exercise price range, lower limit (dollars per share) | $ 20.29
Exercise price range, upper limit (dollars per share) | $ 34.17
$ 34.18 – $ 37.80 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | 1,256,058
Outstanding Options, Average Remaining Option Life (years) | 6 years 6 months 4 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 34.88
Exercisable Options, Number Exercisable (shares) | 146,089
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 35.72
Exercise price range, lower limit (dollars per share) | $ 34.18
Exercise price range, upper limit (dollars per share) | $ 37.80
$ 37.81 – $ 43.00 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | 1,747,491
Outstanding Options, Average Remaining Option Life (years) | 6 years 8 months 1 day
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 38.57
Exercisable Options, Number Exercisable (shares) | 359,434
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 40.45
Exercise price range, lower limit (dollars per share) | $ 37.81
Exercise price range, upper limit (dollars per share) | $ 43.00
$ 43.01 – $ 62.12 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | 3,567,066
Outstanding Options, Average Remaining Option Life (years) | 8 years 7 months 21 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 55.32
Exercisable Options, Number Exercisable (shares) | 419,633
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 44.94
Exercise price range, lower limit (dollars per share) | $ 43.01
Exercise price range, upper limit (dollars per share) | $ 62.12
$ 20.29 – $ 62.12 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | 8,025,794
Outstanding Options, Average Remaining Option Life (years) | 7 years 4 months 6 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 43.12
Exercisable Options, Number Exercisable (shares) | 1,583,413
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 35.40
Exercise price range, lower limit (dollars per share) | $ 20.29
Exercise price range, upper limit (dollars per share) | $ 62.12

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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