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Earnings Per Share - Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 26 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 08, 2021 | Nov. 30, 2020 | Aug. 31, 2020 | Nov. 30, 2019 | Aug. 31, 2019 | Nov. 30, 2020 | Nov. 30, 2019 | Jan. 08, 2021 | Oct. 29, 2019 | Oct. 30, 2018
Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |
Basic earnings per share from discontinued operations (in dollars per share) |  | $ 0.00 |  | $ 0 |  | $ 0.00 | $ 0 |  |  |
Diluted earnings per share from discontinued operations (in dollars per share) |  | $ 0.00 |  | $ 0.00 |  | $ 0.00 | $ 0 |  |  |
Options granted and excluded from the computation of diluted earnings per share (in shares) |  | 200,000 |  | 200,000 |  | 200,000 | 300,000 |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock purchased under share buyback |  | $ 2,371,000 | $ 69,011,000 | $ 1,911,000 | $ 256,830,000 |  |  |  |  |
Shares acquired for employee payroll taxes on restricted stock awards (in shares) |  | 100,000 |  | 100,000 |  | 200,000 | 300,000 |  |  |
Shares acquired for employee payroll taxes on restricted stock awards, average price (in dollars per share) |  | $ 333.60 |  | $ 259.17 |  | $ 301.01 | $ 260.89 |  |  |
Shares acquired for employee payroll taxes on restricted stock awards |  | $ 2,400,000 |  | $ 300,000 |  | $ 71,400,000 | $ 65,700,000 |  |  |
Share Buyback Programs |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock purchased under share buyback (shares) |  | 0 |  | 0 |  | 0 | 800,000 |  |  |
Stock purchased under share buyback, average price (in dollars per share) |  |  |  |  |  |  | $ 230.66 |  |  |
Stock purchased under share buyback |  |  |  |  |  |  | $ 193,100,000 |  |  |
Share Buyback Programs | Subsequent Event |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock purchased under share buyback (shares) | 0 |  |  |  |  |  |  |  |  |
October 30, 2018 Plan |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Share buyback program, authorized amount |  |  |  |  |  |  |  |  |  | $ 1,000,000,000.0
October 30, 2018 Plan | Subsequent Event |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock purchased under share buyback (shares) |  |  |  |  |  |  |  | 4,300,000 |  |
Stock purchased under share buyback, average price (in dollars per share) |  |  |  |  |  |  |  | $ 219.42 |  |
Stock purchased under share buyback |  |  |  |  |  |  |  | $ 939,100,000 |  |
October 29, 2019 Plan |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Share buyback program, authorized amount |  |  |  |  |  |  |  |  | $ 1,000,000,000.0 |

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