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FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions | Feb. 28, 2023 | May 31, 2022
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Assets, Fair Value Disclosure [Abstract] |  |
SHORT-TERM INVESTMENTS | $ 3,847 | $ 4,423
Fair Value, Measurements, Recurring |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash | 1,105 | 839
ASSETS AT FAIR VALUE | 10,802 | 12,997
CASH AND EQUIVALENTS | 6,955 | 8,574
SHORT-TERM INVESTMENTS | 3,847 | 4,423
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | U.S. Treasury securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
ASSETS AT FAIR VALUE | 3,185 | 3,801
CASH AND EQUIVALENTS | 1 | 8
SHORT-TERM INVESTMENTS | 3,184 | 3,793
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 |  |
Assets, Fair Value Disclosure [Abstract] |  |
ASSETS AT FAIR VALUE | 6,512 | 8,357
CASH AND EQUIVALENTS | 5,849 | 7,727
SHORT-TERM INVESTMENTS | 663 | 630
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Commercial paper and bonds |  |
Assets, Fair Value Disclosure [Abstract] |  |
ASSETS AT FAIR VALUE | 583 | 660
CASH AND EQUIVALENTS | 8 | 37
SHORT-TERM INVESTMENTS | 575 | 623
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Money market funds |  |
Assets, Fair Value Disclosure [Abstract] |  |
ASSETS AT FAIR VALUE | 5,114 | 6,458
CASH AND EQUIVALENTS | 5,114 | 6,458
SHORT-TERM INVESTMENTS | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Time deposits |  |
Assets, Fair Value Disclosure [Abstract] |  |
ASSETS AT FAIR VALUE | 781 | 1,237
CASH AND EQUIVALENTS | 727 | 1,232
SHORT-TERM INVESTMENTS | 54 | 5
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | U.S. Agency securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
ASSETS AT FAIR VALUE | 34 | 2
CASH AND EQUIVALENTS | 0 | 0
SHORT-TERM INVESTMENTS | $ 34 | $ 2

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 21 -URI https://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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