Annual report pursuant to Section 13 and 15(d)

Interest (Expense)/Income, Net (Schedule of Interest (Expense)/Income, Net) (Details)

v3.19.2
Interest (Expense)/Income, Net (Schedule of Interest (Expense)/Income, Net) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
May 31, 2019
Feb. 28, 2019
Nov. 30, 2018
Aug. 31, 2018
May 31, 2018
[1]
Feb. 28, 2018
[1]
Nov. 30, 2017
[1]
Aug. 31, 2017
[1]
May 31, 2019
May 31, 2018
May 31, 2017
Interest (Expense)/Income, Net [Abstract]                      
Interest income on corporate funds                 $ 13.3 $ 11.9 $ 9.9
Interest expense                 (17.6) (3.9) (2.5)
Net gain/(loss) from equity-method investments                 1.0 0.6 (2.2)
Interest (expense)/income, net $ (4.0) $ (3.7) $ 2.1 $ 2.3 $ 2.5 $ 2.3 $ 1.7 $ 2.1 $ (3.3) $ 8.6 [1],[2] $ 5.2 [2]
[1] Amounts have been adjusted to reflect the adoption of ASC Topic 606.
[2] Amounts have been adjusted to reflect the adoption of Accounting Standards Codification ("ASC") Topic 606, "Revenue from Contracts with Customers" ("ASC Topic 606").