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Income Taxes (Narrative) (Details) - USD ($) | 12 Months Ended
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Nov. 30, 2020 | Nov. 30, 2019 | Nov. 30, 2018 | Nov. 30, 2017
Income Tax Disclosure [Abstract] |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 22.20% | 35.00%
Current, Federal | $ 98,300,000 | $ 52,300,000 | $ 92,900,000 |
Non-U.S. subsidiaries tax loss carryforwards | 214,400,000 |  |  |
Tax loss carryforwards expiring through 2019 | 100,000 |  |  |
Tax loss carryforwards expiring from 2020 through 2021 | 9,600,000 |  |  |
Tax Loss Carryforwards expiring from 2022 Through 2035 | 77,900,000 |  |  |
Deferred Tax Assets, Capital Loss Carryforwards | 5,000,000.0 |  |  |
Tax credit carryforwards | 59,700,000 | 46,800,000 |  |
Net increase in the valuation allowance | 900,000 |  |  |
Unrecognized tax benefits | 39,300,000 | 32,000,000.0 | 27,900,000 | $ 39,100,000
Statute expirations | 4,200,000 | 2,500,000 | 9,100,000 |
Interest and penalty (income) / expense | 800,000 | 2,100,000 | 100,000 |
Interest and penalties accrued | 8,300,000 | 7,100,000 |  |
Tax benefits that would impact effective tax rate | 39,300,000 | 32,000,000.0 | 27,500,000 |
Deferred, Federal | (4,600,000) | (26,400,000) | $ 340,300,000 |
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability | $ 380,000,000.0 |  |  |
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent | 15.50% |  |  |
U.S. Tax Act, Incomplete Accounting, Transition Tax | $ 76,000,000.0 | 75,300,000 |  |
U.S. Tax Act, Incomplete Accounting, Withholding Tax on Repatriation Earnings | 7,900,000 |  |  |
U.S. Tax Act, Incomplete Accounting, Changes in Transition Tax | 4,700,000 |  |  |
U.S. Tax Act, Incomplete Accounting, Repatriation and Withholding Tax Impact |  | 78,500,000 |  |
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount |  | $ 21,100,000 |  |
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount | 7,700,000 |  |  |
U.S. Tax Act, Incomplete Accounting, Transition Tax, remitted over 8 years | 47,200,000 |  |  |
U.S. Tax Act, Incomplete Accounting, Remaining Unpaid Transition Tax | 39,700,000 |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration | 126,800,000 |  |  |
Tax Credit Carryforward, Amount | 7,300,000 |  |  |
Undistributed Earnings of Foreign Subsidiaries | $ 1,300,000,000 |  |  |

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