Financial Instruments - Impact of Fair Value Hedges on Other Comprehensive Income, Accumulated Other Comprehensive Income and Income Statement (Details) - Fair Value Hedging - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Aug. 31, 2018 |
Aug. 31, 2017 |
Aug. 31, 2018 |
Aug. 31, 2017 |
|
| Interest Expense | Interest rate contracts | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Interest income (expense) | $ (0.1) | $ 0.2 | $ 0.1 | $ 0.7 |
| Other Income | Foreign exchange contracts | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Foreign Currency Transaction Gain (Loss), Realized | 0.5 | 2.9 | (2.1) | 5.2 |
| Other Income | Loans Payable | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Foreign Currency Transaction Gain (Loss), Realized | $ (1.1) | $ (3.1) | $ 1.1 | $ (6.0) |