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Pension Plans (Details) Table 2 - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Retirement Benefits [Abstract]      
Defined Benefit Plan, Service Cost $ 14.9 $ 16.3 $ 17.9
Defined Benefit Plan, Interest Cost 26.4 27.5 27.4
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (32.7) (38.4) (37.7)
Defined Benefit Plan, Amortization of Transition Asset (Obligation) 3.4 5.2 12.2
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (1.7) (2.2) (2.1)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment (0.1) (2.7) (1.8)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement 2.3 2.0 64.3
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) $ 12.5 $ 7.7 $ 80.2