Stock-based Compensation (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Aug. 31, 2016 |
Aug. 31, 2015 |
Aug. 31, 2016 |
Aug. 31, 2015 |
|
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Stock-based compensation expense | $ 80.4 | $ 31.8 | $ 142.6 | $ 96.4 |
| Income tax benefits | 23.7 | 10.2 | 43.5 | 30.9 |
| Capitalized stock-based compensation cost | 0.0 | 0.0 | 0.0 | 0.0 |
| Cost of revenue [Member] | ||||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Stock-based compensation expense | 14.8 | 2.1 | 17.5 | 5.0 |
| Selling general and administrative [Member] | ||||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Stock-based compensation expense | $ 65.6 | $ 29.7 | $ 125.1 | $ 91.4 |