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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
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May 31, 2022 | May 31, 2021 | May 31, 2020
Share Based Compensation Arrangement Stock Options [Abstract] |  |  |
Stock option vesting period range | one to four years |  |
Restricted stock expiration period | ratably over four years |  |
Stock-based compensation, key assumptions of valuation method | Black-Scholes |  |
Maximum term of stock options | 10 years |  |
Restricted stock granted | 115,172 | 335,004 | 207,012
Restricted stock, weighted-average fair value | $ 276.26 | $ 155.19 | $ 158.58
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Abstract |  |  |
Total unrecognized compensation cost, net of estimated forfeitures | $ 253 |  |
Stock option remaining weighted average vesting period | 2 years |  |
Ratio Of Outstanding And Available To Grant Shares To Total Outstanding Common And Equity Compensation Shares And Equity Compensation Shares Available For Grant [Abstract] |  |  |
Ratio Of Outstanding And Available To Grant Shares To Total Outstanding Common And Equity Compensation Shares And Equity Compensation Shares Available For Grant | 9.00% |  |

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- Definition Total outstanding and available for grant related equity compensation divided by the outstanding common and equity compensation shares and equity compensation shares available for grant. + References No definition available. + Details
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- Definition Ratio Of Outstanding And Available To Grant Shares To Outstanding Common And Equity Compensation Shares And Equity Compensation Shares Available For Grant [Abstract] + References No definition available. + Details
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- Definition The time period after which the equity-based award restrictions expires as specified in the award agreement. + References No definition available. + Details
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- Definition The maximum period of time an equity-based award is expected to be outstanding. + References No definition available. + Details
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- Definition Share Based Compensation Arrangement Stock Options [Abstract] + References No definition available. + Details
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- Definition Period of time over which a employee's right to exercise a stock option is no longer contingent on satisfaction of a service condition. + References No definition available. + Details
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Description of method used to estimate fair value of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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