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Reconciliation of Changes in Gross Balance of Unrecognized Tax Benefits (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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May 31, 2012
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May 31, 2011
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May 31, 2010
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| Income Tax Contingency [Line Items] | |||
| Unrecognized tax benefits, as of the beginning of the period | $ 212 | $ 282 | $ 274 |
| Gross increases related to prior period tax positions | 48 | 13 | 87 |
| Gross decreases related to prior period tax positions | (25) | (98) | (122) |
| Gross increases related to current period tax positions | 91 | 59 | 52 |
| Gross decreases related to current period tax positions | (1) | (6) | 0 |
| Settlements | (20) | (43) | (3) |
| Lapse of statute of limitations | (9) | (8) | (9) |
| Changes due to currency translation | (11) | 13 | 3 |
| UNRECOGNIZED TAX BENEFITS, AS OF THE END OF THE PERIOD | $ 285 | $ 212 | $ 282 |
| X | ||||||||||
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- Definition
The gross amount of changes in unrecognized tax benefits resulting from currency translation. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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