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Fair Value Measurements - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | |||
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Nov. 30, 2012
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Nov. 30, 2011
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Nov. 30, 2012
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Nov. 30, 2011
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May 31, 2012
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| Fair Value, Measurement Inputs, Disclosure [Line Items] | |||||
| Available-for-sale securities with maturity dates within one year from purchase date | $ 937 | $ 937 | $ 1,129 | ||
| Available-for-sale securities with maturity dates over one year and less than five years from purchase date | 297 | 297 | 311 | ||
| Interest income related to cash and equivalents and short-term investments | 6 | 7 | 14 | 15 | |
| Fair value of long term debt | $ 237 | $ 237 | $ 283 | ||
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- Details
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- Definition
Amount of available-for-sale debt securities at fair value maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of available-for-sale debt securities at fair value maturing in the next fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. No definition available.
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