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Investment Income, Net (Tables) | 6 Months Ended
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Nov. 30, 2018
Investment Income, Net [Abstract] |
Schedule of Investment Income, Net |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | For the three months ended |  | For the six months ended
﻿ |  | November 30, |  | November 30,
﻿In millions |  | 2018 |  | 2017 |  | 2018 |  | 2017
﻿Interest income on corporate funds |  | $ | 2.8 |  | $ | 2.7 |  | $ | 6.0 |  | $ | 5.6
﻿Interest expense |  |  | (0.8) |  |  | (1.3) |  |  | (1.7) |  |  | (2.1)
﻿Net gain from equity-method investments |  |  | 0.1 |  |  | 0.3 |  |  | 0.1 |  |  | 0.3
﻿Investment income, net |  | $ | 2.1 |  | $ | 1.7 |  | $ | 4.4 |  | $ | 3.8
﻿

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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