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Identifiable Intangible Assets and Goodwill - Identifiable Intangible Asset Balances (Detail) (USD $)
In Millions, unless otherwise specified |
Feb. 28, 2014
|
May 31, 2013
|
|---|---|---|
| Goodwill and Intangible Assets Disclosure [Line Items] | ||
| Gross Carrying Amount | $ 197 | $ 182 |
| Accumulated Amortization | (94) | (83) |
| Net Carrying Amount | 103 | 99 |
| Unamortized intangible assets — Trademarks | 283 | 283 |
| Identifiable intangible assets, net | 386 | 382 |
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Patents
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| Goodwill and Intangible Assets Disclosure [Line Items] | ||
| Gross Carrying Amount | 132 | 119 |
| Accumulated Amortization | (40) | (35) |
| Net Carrying Amount | 92 | 84 |
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Trademarks
|
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| Goodwill and Intangible Assets Disclosure [Line Items] | ||
| Gross Carrying Amount | 46 | 43 |
| Accumulated Amortization | (37) | (32) |
| Net Carrying Amount | 9 | 11 |
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Other
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| Goodwill and Intangible Assets Disclosure [Line Items] | ||
| Gross Carrying Amount | 19 | 20 |
| Accumulated Amortization | (17) | (16) |
| Net Carrying Amount | $ 2 | $ 4 |